Today is June 30th. It's the 182nd day of the year. 184 days remain. It's week 26 of the year.
Unless
noted, the following data is based upon observations collected by the
National Weather Service, Chicago, at O'Hare International Airport
(ORD) between November 1978 and last year. ORD has been the official
site of record for Chicago since Thursday, January 17, 1980. Before
this, the official site of record was on the
south side of Chicago at Midway
International Airport (MDW), beginning on Wednesday,
July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was
at various locations in Chicago going back to
Monday, October 16, 1871. Observations taken from
October 15, 1870 to October 8, 1871 were lost in
the Great Chicago Fire.
According
to the National Climatic Data Center (NCDC), the normal high is 84
and the normal low is 62. I've calculated the 33-year averages at 80
and 59.
On the hot side, in 1996 the high was 94 (O'Hare's hottest high of the date) with a low of 73. In
2005 the high was 91 with a low of 72. In 2002 the high was 93 (ties 1970 as O'Hare's second hottest high of the date) with a low of 69. The record high of 99 was tied in 1953 at Midway, after first being set in 1913. The record warmest low of 80 occurred back in 1931 at the University of Chicago. 26 of the past 33 highs (79%) were in the: 70s (10) and 80s (16). O'Hare recorded 14 consecutive 70s & 80s highs from 1972 through 1985. Four highs (12%) were in the hot 90s and three (9%) were in the cool 60s. O'Hare's warmest June 30th was in 1970 as the high was 93 (tied with 2002 as O'Hare's second hottest high of the date) with a low of 78 (O'Hare's warmest low of the date).
In
looking back through the years to the first June at O'Hare in 1959,
the following instances were notable: In 1970 the high was 93 with a
warm low of 78, a hot day. In
1966 the high was 90 with a low of 60, a 30 degree spread. In 1965 the
high was 68 with a low of 44, a cool day. In 1963 the high was 92
with a low of 62, a 30 degree spread.
More recently, there was an additional small spread of seven degrees three years ago, in 2009 (66/59). The large spreads were: 34 degrees in 1989 (83/49), 32 degrees in 2006 (85/53) and 30 degrees in 1979 (81/51).
On
the cool side, in 1982 (O'Hare's second coolest June 30th) the high was 70 with a low of 47 (O'Hare's second coldest low of the date). Four years
later, in 1986, the high was 64 (O'Hare's coolest high of the date) with a low of 59, a small five degree
spread. The other 40s low was 49 in 1989. The other cool highs were 66
three years ago in 2009, 69 in 1993, 72 in 1984 and 72 in 1988. The record low of 45 was set in
1943 at Midway. The record coolest high of 59 occurred way back in 1902, at a time when the official readings were taken adjacent to Lake Michigan. 29 of
the last 33 lows (88%) were in the: 50s (18) and 60s (11). Two lows were in the cold 40s and two were in the warm 70s. O'Hare's coolest June 30th was in 1965 as the high was 68 with a low of 44 (O'Hare's coldest low of the date).
The
following
astronomical data
is
provided by
the
United
States
Naval
Observatory. In
Crystal
Lake,
twilight begins
at 4:46 and
sunrise is
at 5:20.
Sunset is at 20:34
and
twilight
ends at 21:08.
There's
a total
of 15 hours, 14 minutes of
daylight
today
and 16
hours, 22
minutes between
twilights.
We lost no minutes of daylight from
yesterday. Tomorrow
twilight
begins
at 4:47 and sunrise
is at 5:21.
The
moon is waxing gibbous, heading towards the full Buck moon in three days at 13:52. Illumination
was 83% at
midnight, will be 87% at noon
and 91% at
midnight
tonight.
Moonset was at 2:16 this morning. Moonrise is at 17:29 this afternoon. Moonset is at 3:08 tomorrow morning. Moonlight
time is 8 hours, 47 minutes which is 29 minutes
shorter than yesterday.
Summer
began on June 4th and runs
for 110
days
through September 21st. High
temperatures
in
this
period
are
usually in
the 70s and 80s.
Highs in
the 90s and 100s occur
infrequently.
Independence Day is in four days.
Saturday, June 30, 2012
June 29: ORD
Today is June 29th. It's the 181st day of the year. 185 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 81 and 61.
On the hot side, in 1991 (O'Hare's second warmest June 29th) the high was 96 with a low of 71. A decade before, in 1981, the high was 96 with a low of 70. Those highs of 96 were O'Hare's hottest for June 29th. O'Hare's warmest lows of the date were 73 degrees in 1971, 1996 and 2005. The record high of 97 was set in 1954 at Midway. The record warmest low of 80 occurred in 1931 at the University of Chicago. 28 of the past 33 highs (85%) were in the: 70s (14) and 80s (14). Four highs were in the hot 90s. One high was in the cool 60s. The lone 60s high was 68. It occurred on one of the two coolest days of the past 33 years in 1984. O'Hare's warmest June 29th was in 1971 as the high was 95 (O'Hare's second hottest high of the date) with a low of 73.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1971 the high was a hot 95 degrees. In 1966 the high was 89 with a low of 57, a 32 degree spread.
More recently, there was a large spread of 34 degrees in 1992 (88/54).
On the cool side, in 1989 (O'Hare's coolest June 29th) the high was 73 with the record low (and only 40s low) of 48. Five years before, in 1984, the high was 68 (O'Hare's coolest high of the date) with a low of 53. The other cool highs were 70 in: 1982, 1988 and 2007. The record coolest high of 59 was set way back in 1902, at a time when the official readings were taken adjacent to Lake Michigan. 28 of the last 33 lows (85%) were in the: 50s (14) and 60s (14). One low was in the cold 40s and four lows were in the warm 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:45 and sunrise is at 5:20. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 14 minutes of daylight today and 16 hours, 23 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:46 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter three nights ago at 22:30. Illumination was 73% at midnight, will be 78% at noon and 83% at midnight tonight. Moonset was at 1:33 this morning. Moonrise is at 16:17 this afternoon. Moonset is at 2:16 tomorrow morning. Moonlight time is 9 hours, 16 minutes which is 36 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in five days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 81 and 61.
On the hot side, in 1991 (O'Hare's second warmest June 29th) the high was 96 with a low of 71. A decade before, in 1981, the high was 96 with a low of 70. Those highs of 96 were O'Hare's hottest for June 29th. O'Hare's warmest lows of the date were 73 degrees in 1971, 1996 and 2005. The record high of 97 was set in 1954 at Midway. The record warmest low of 80 occurred in 1931 at the University of Chicago. 28 of the past 33 highs (85%) were in the: 70s (14) and 80s (14). Four highs were in the hot 90s. One high was in the cool 60s. The lone 60s high was 68. It occurred on one of the two coolest days of the past 33 years in 1984. O'Hare's warmest June 29th was in 1971 as the high was 95 (O'Hare's second hottest high of the date) with a low of 73.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1971 the high was a hot 95 degrees. In 1966 the high was 89 with a low of 57, a 32 degree spread.
More recently, there was a large spread of 34 degrees in 1992 (88/54).
On the cool side, in 1989 (O'Hare's coolest June 29th) the high was 73 with the record low (and only 40s low) of 48. Five years before, in 1984, the high was 68 (O'Hare's coolest high of the date) with a low of 53. The other cool highs were 70 in: 1982, 1988 and 2007. The record coolest high of 59 was set way back in 1902, at a time when the official readings were taken adjacent to Lake Michigan. 28 of the last 33 lows (85%) were in the: 50s (14) and 60s (14). One low was in the cold 40s and four lows were in the warm 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:45 and sunrise is at 5:20. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 14 minutes of daylight today and 16 hours, 23 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:46 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter three nights ago at 22:30. Illumination was 73% at midnight, will be 78% at noon and 83% at midnight tonight. Moonset was at 1:33 this morning. Moonrise is at 16:17 this afternoon. Moonset is at 2:16 tomorrow morning. Moonlight time is 9 hours, 16 minutes which is 36 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in five days.
June 28: ORD
Today is June 28th. It's the 180th day of the year. 186 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 83 and 61.
On the hot side, in 2005 (O'Hare's second warmest June 28th) the high was 94 with a low of 76 (O'Hare's warmest low of the date). In 1991 the high was 89 with a low of 70. The record high of 101 was originally set in 1952 and tied in 1971, both at Midway. The record warmest low of 81 occurred back in 1913, at a time when the official readings were taken adjacent to Lake Michigan. 22 of the past 33 highs (67%) were in the 80s. Two highs (6%) were in the hot 90s. Nine highs (27%) were in the cool: 60s (1) and 70s (8). O'Hare's lone 60s high was 69. It occurred on the coolest day of the past 33 years in 2000. O'Hare's warmest June 28th was in 1971 as the high was 97 (O'Hare's hottest high of the date) with a low of 75.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1973 the high was a cool 70 degrees. In 1971 the high was 97 with a low of 75, a hot day and year of the record high (101 at Midway). In 1964 the high was 91 with a low of 61, a 30 degree spread. In 1962 the high was 90 with a low of 57, a 33 degree spread. In 1959 the low was a warm 78 degrees.
More recently, there was a small spread of seven degrees in 1983 (70/63). The other spreads were large: 30 degrees in 1996 (92/62) and 30 degrees in 1988 (88/58).
On the cool side, in 2000 (O'Hare's coolest June 28th) the high was 69 (O'Hare's only 60s high and coolest high of the date) with a low of 55. In 1992 the high was 82 with the record low of 44 (O'Hare's only 40s low of the date), a spread of 38 degrees. The other cool high of 70 occurred in 1983. The high was also 70 in 1973. These highs of 70 are O'Hare's second coolest of the date. The record coolest high of 58 occurred way back in 1902, at a time when the official readings were taken adjacent to Lake Michigan. 21 of the last 33 lows (64%) were in the 60s. O'Hare recorded six consecutive 60s lows from 1994 through 1999. Ten lows (30%) were in the cool: 40s (1) and 50s (9). Two lows (6%) were in the warm 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:45 and sunrise is at 5:20. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 14 minutes of daylight today and 16 hours, 23 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:45 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter two nights ago at 22:30. Illumination was 63% at midnight, will be 68% at noon and 73% at midnight tonight. Moonset was at 0:56 this morning. Moonrise is at 15:04 this afternoon. Moonset is at 1:33 tomorrow morning. Moonlight time is 9 hours, 52 minutes which is 39 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in six days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 83 and 61.
On the hot side, in 2005 (O'Hare's second warmest June 28th) the high was 94 with a low of 76 (O'Hare's warmest low of the date). In 1991 the high was 89 with a low of 70. The record high of 101 was originally set in 1952 and tied in 1971, both at Midway. The record warmest low of 81 occurred back in 1913, at a time when the official readings were taken adjacent to Lake Michigan. 22 of the past 33 highs (67%) were in the 80s. Two highs (6%) were in the hot 90s. Nine highs (27%) were in the cool: 60s (1) and 70s (8). O'Hare's lone 60s high was 69. It occurred on the coolest day of the past 33 years in 2000. O'Hare's warmest June 28th was in 1971 as the high was 97 (O'Hare's hottest high of the date) with a low of 75.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1973 the high was a cool 70 degrees. In 1971 the high was 97 with a low of 75, a hot day and year of the record high (101 at Midway). In 1964 the high was 91 with a low of 61, a 30 degree spread. In 1962 the high was 90 with a low of 57, a 33 degree spread. In 1959 the low was a warm 78 degrees.
More recently, there was a small spread of seven degrees in 1983 (70/63). The other spreads were large: 30 degrees in 1996 (92/62) and 30 degrees in 1988 (88/58).
On the cool side, in 2000 (O'Hare's coolest June 28th) the high was 69 (O'Hare's only 60s high and coolest high of the date) with a low of 55. In 1992 the high was 82 with the record low of 44 (O'Hare's only 40s low of the date), a spread of 38 degrees. The other cool high of 70 occurred in 1983. The high was also 70 in 1973. These highs of 70 are O'Hare's second coolest of the date. The record coolest high of 58 occurred way back in 1902, at a time when the official readings were taken adjacent to Lake Michigan. 21 of the last 33 lows (64%) were in the 60s. O'Hare recorded six consecutive 60s lows from 1994 through 1999. Ten lows (30%) were in the cool: 40s (1) and 50s (9). Two lows (6%) were in the warm 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:45 and sunrise is at 5:20. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 14 minutes of daylight today and 16 hours, 23 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:45 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter two nights ago at 22:30. Illumination was 63% at midnight, will be 68% at noon and 73% at midnight tonight. Moonset was at 0:56 this morning. Moonrise is at 15:04 this afternoon. Moonset is at 1:33 tomorrow morning. Moonlight time is 9 hours, 52 minutes which is 39 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in six days.
June 27: ORD
Today is June 27th. It's the 179th day of the year. 187 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 83 and 62.
On the hot side, in 1998 the high was 95 with a low of 69. In 2005 the high was 95 with a low of 68. Those highs of 95 were O'Hare's hottest since 1971. The record high of 101 was set in 1971 at Midway. The record warmest low of 79 occurred back in 1931 at the University of Chicago. 23 of the past 33 highs (70%) were in the 80s. Four highs (12%) were in the hot 90s. Six highs (18%) were in the cool: 60s (1) and 70s (5). Our most recent 70s high was 77 in 2000. The lone 60s high was 69. It occurred on the coolest day of the past 33 years in 1992. It didn't rain that day, but winds were Northeast, off the lake. The prior year, 1991, saw one of our hottest highs of 93 degrees. O'Hare's warmest June 27th was in 1959 as the high was 91 with a low of 75 (O'Hare's warmest low of the date). O'Hare's second warmest June 27th was in 1971 as the high was 96 (O'Hare's hottest high of the date) with a low of 69.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1971 the high was a hot 96 degrees. 1971 was the year of the record high of 101 at Midway. In 1968 the high was a cool 58 with a low of 55, a three degree spread and cool day. In 1959 the low was a warm 75 degrees.
The June 1964 heat wave was impressive. The following were the highs and lows: 26th (90/65), 27th (90/61), 28th (91/61), 29th (91/62) and 30th (90/61).
More recently, the spreads were all large: 32 degrees in 1981 (81/49) and 30 degrees in 1996 (89/59).
On the cool side, in 1992 (O'Hare's second coolest June 27th) the high was O'Hare's only 60s high of the date of 69 with the record low of 47. In 1988 the high was 78 with a low of 51. The prior year, 1987, saw a high of 75 with a low of 54. The only other 40s low was 49 in 1981. The record coolest high of 57 occurred way back in 1905, at a time when the official readings were taken adjacent to Lake Michigan. 28 of the last 33 lows (85%) were in the: 50s (10) and 60s (18). Our most recent 50s lows were 57 in 2003 and 53 in 2004. Two lows were in the cold 40s and three were in the warm 70s. The 70s lows (excluding 1959) occurred more recently (70 in 1999, 71 in 2007 and 72 in 2010). O'Hare's coolest June 27th was in 1968 as the high was 58 (O'Hare's coolest high of the date) with a low of 55, a mere three degree spread.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:19. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 15 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:45 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter last night at 22:30. Illumination was 51% at midnight, will be 57% at noon and 63% at midnight tonight. Moonset was at 0:23 this morning. Moonrise is at 13:52 this afternoon. Moonset is at 0:56 tomorrow morning. Moonlight time is 10 hours, 31 minutes which is 46 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in seven days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 83 and 62.
On the hot side, in 1998 the high was 95 with a low of 69. In 2005 the high was 95 with a low of 68. Those highs of 95 were O'Hare's hottest since 1971. The record high of 101 was set in 1971 at Midway. The record warmest low of 79 occurred back in 1931 at the University of Chicago. 23 of the past 33 highs (70%) were in the 80s. Four highs (12%) were in the hot 90s. Six highs (18%) were in the cool: 60s (1) and 70s (5). Our most recent 70s high was 77 in 2000. The lone 60s high was 69. It occurred on the coolest day of the past 33 years in 1992. It didn't rain that day, but winds were Northeast, off the lake. The prior year, 1991, saw one of our hottest highs of 93 degrees. O'Hare's warmest June 27th was in 1959 as the high was 91 with a low of 75 (O'Hare's warmest low of the date). O'Hare's second warmest June 27th was in 1971 as the high was 96 (O'Hare's hottest high of the date) with a low of 69.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1971 the high was a hot 96 degrees. 1971 was the year of the record high of 101 at Midway. In 1968 the high was a cool 58 with a low of 55, a three degree spread and cool day. In 1959 the low was a warm 75 degrees.
The June 1964 heat wave was impressive. The following were the highs and lows: 26th (90/65), 27th (90/61), 28th (91/61), 29th (91/62) and 30th (90/61).
More recently, the spreads were all large: 32 degrees in 1981 (81/49) and 30 degrees in 1996 (89/59).
On the cool side, in 1992 (O'Hare's second coolest June 27th) the high was O'Hare's only 60s high of the date of 69 with the record low of 47. In 1988 the high was 78 with a low of 51. The prior year, 1987, saw a high of 75 with a low of 54. The only other 40s low was 49 in 1981. The record coolest high of 57 occurred way back in 1905, at a time when the official readings were taken adjacent to Lake Michigan. 28 of the last 33 lows (85%) were in the: 50s (10) and 60s (18). Our most recent 50s lows were 57 in 2003 and 53 in 2004. Two lows were in the cold 40s and three were in the warm 70s. The 70s lows (excluding 1959) occurred more recently (70 in 1999, 71 in 2007 and 72 in 2010). O'Hare's coolest June 27th was in 1968 as the high was 58 (O'Hare's coolest high of the date) with a low of 55, a mere three degree spread.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:19. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 15 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:45 and sunrise is at 5:20. The moon is waxing gibbous, having reached first quarter last night at 22:30. Illumination was 51% at midnight, will be 57% at noon and 63% at midnight tonight. Moonset was at 0:23 this morning. Moonrise is at 13:52 this afternoon. Moonset is at 0:56 tomorrow morning. Moonlight time is 10 hours, 31 minutes which is 46 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in seven days.
June 26: ORD
Today is June 26th. It's the 178th day of the year. 188 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 84 and 62.
On the hot side, in 1983 (tied with 1969 as O'Hare's warmest June 26th) the high was the record high of 99 with a low of 72. In 2005 the high was 93 with a low of 70. Two years later, in 2007, the high was 92 with a low of 70. The record warmest low of 77 occurred back in 1931 at the University of Chicago. 25 of the past 33 highs (76%) were in the: 70s (9) and 80s (16). O'Hare recorded 13 consecutive 70s & 80s highs from 1992 through 2004. Seven highs (21%) were in the hot 90s. One high (3%) was in the cool 60s (69 in 1982). That only 60s high was followed the next year by our record high of 99 in 1983. In 1969 (tied with 1983 as the warmest June 26th) the high was 96 (O'Hare's second hottest high of the date) with a low of 75 (O'Hare's warmest low of the date).
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1977 the high was 89 with a low of 58, a 31 degree spread. In 1974 the low was a cold 50 degrees. In 1971, highs and lows were nearly the same on the 25th (81/62) and 26th (82/61). In 1970 the high was a cool 64 with a low of 54, a cool day. In 1969 the high was 96 with a low of 75, a hot day. In 1963 the high was 92 with a low of 62, a 30 degree spread. In 1959, highs and lows were nearly the same on the 25th (91/70) and 26th (90/71).
More recently, the spreads were all large: 35 degrees in 1979 (88/53), 34 degrees in 1986 (90/56) and 32 degrees in 1984 (88/56).
On the cool side, in 1982 the high was 69 with a low of 52. A decade later, in 1992, the high was 73 with the record low of 50. The low was also 50 in 1974. The record coolest high of 60 occurred way back in 1884, at a time when the official readings were taken adjacent to Lake Michigan. 27 of the last 33 lows (82%) were in the: 50s (11) and 60s (16). Six lows were in the warm 70s. 1970 was O'Hare's coolest June 26th as the high was 64 (O'Hare's coolest high of the date) with a low of 54.
There was an instance of back-to-back years in which temperatures were just about as opposite as they can be. In 1982 the high was 69 with a low of 52, overall 11.5 degrees BELOW normal. Then in 1983 the high was 99 with a low of 72, overall 13.5 degrees ABOVE normal.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:19. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 15 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:19. The moon reaches first quarter tonight at 22:30. Illumination was 40% at midnight, will be 46% at noon and 51% at midnight tonight. Moonrise is at 12:43 this afternoon. Moonset is at 0:23 tomorrow morning. Moonrise is at 13:52 tomorrow afternoon. Moonlight time is 11 hours, 17 minutes which is an hour and 2 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in eight days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 62. I've calculated the 33-year averages at 84 and 62.
On the hot side, in 1983 (tied with 1969 as O'Hare's warmest June 26th) the high was the record high of 99 with a low of 72. In 2005 the high was 93 with a low of 70. Two years later, in 2007, the high was 92 with a low of 70. The record warmest low of 77 occurred back in 1931 at the University of Chicago. 25 of the past 33 highs (76%) were in the: 70s (9) and 80s (16). O'Hare recorded 13 consecutive 70s & 80s highs from 1992 through 2004. Seven highs (21%) were in the hot 90s. One high (3%) was in the cool 60s (69 in 1982). That only 60s high was followed the next year by our record high of 99 in 1983. In 1969 (tied with 1983 as the warmest June 26th) the high was 96 (O'Hare's second hottest high of the date) with a low of 75 (O'Hare's warmest low of the date).
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1977 the high was 89 with a low of 58, a 31 degree spread. In 1974 the low was a cold 50 degrees. In 1971, highs and lows were nearly the same on the 25th (81/62) and 26th (82/61). In 1970 the high was a cool 64 with a low of 54, a cool day. In 1969 the high was 96 with a low of 75, a hot day. In 1963 the high was 92 with a low of 62, a 30 degree spread. In 1959, highs and lows were nearly the same on the 25th (91/70) and 26th (90/71).
More recently, the spreads were all large: 35 degrees in 1979 (88/53), 34 degrees in 1986 (90/56) and 32 degrees in 1984 (88/56).
On the cool side, in 1982 the high was 69 with a low of 52. A decade later, in 1992, the high was 73 with the record low of 50. The low was also 50 in 1974. The record coolest high of 60 occurred way back in 1884, at a time when the official readings were taken adjacent to Lake Michigan. 27 of the last 33 lows (82%) were in the: 50s (11) and 60s (16). Six lows were in the warm 70s. 1970 was O'Hare's coolest June 26th as the high was 64 (O'Hare's coolest high of the date) with a low of 54.
There was an instance of back-to-back years in which temperatures were just about as opposite as they can be. In 1982 the high was 69 with a low of 52, overall 11.5 degrees BELOW normal. Then in 1983 the high was 99 with a low of 72, overall 13.5 degrees ABOVE normal.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:19. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 15 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:19. The moon reaches first quarter tonight at 22:30. Illumination was 40% at midnight, will be 46% at noon and 51% at midnight tonight. Moonrise is at 12:43 this afternoon. Moonset is at 0:23 tomorrow morning. Moonrise is at 13:52 tomorrow afternoon. Moonlight time is 11 hours, 17 minutes which is an hour and 2 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in eight days.
Wednesday, June 27, 2012
June 25: ORD
Today is June 25th. It's the 177th day of the year. 189 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 61. I've calculated the 33-year averages at 85 and 60.
On the hot side, in 1988 the high was the record high of 103 with a low of 66, a 37 degree spread. That high of 103 is the second hottest high ever at O'Hare. Three years ago, in 2009, the high was 94 with a low of 75 (O'Hare's warmest low of the date). 1988 and 2009 have means of 84.5 and thus are O'Hare's warmest June 25ths. The other hot high was 95 in 1998. The other warm low was 73 in 2002. The record warmest low of 76 occurred way back in 1890, at a time when the official readings were taken adjacent to Lake Michigan. 19 of the past 33 highs (58%) were in the 80s. O'Hare recorded six consecutive 80s highs from 1990 through 1995. Seven highs (21%) were in the warm: 90s (6) and 100s (1). Seven highs (21%) were in the cool 70s. O'Hare's second hottest high of the date was 96 in 1969.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1978 the high was 75 with a low of 68, a seven degree spread. In 1974 the high was 70 with a low of 49, a cool day. In 1973 the high was 84 with a low of 50, a 34 degree spread. In 1971 highs and lows were nearly the same on the 25th (81/62) and 26th (82/61). In 1970 the high was a cool 69 with a low of 52, a cool day. In 1969 the high was a hot 96 with a low of 60, a 36 degree spread. In 1968 the high was a cool 71 degrees. In 1965 the high was 73 with a cold low of 45, a cool day. In 1963 the high was 90 with a low of 53, a 37 degree spread. In 1959, highs and lows were nearly the same on the 25th (91/70) and 26th (90/71).
More recently, the additional spreads were all large: 36 degrees in 1979 (80/44), 35 degrees in 1989 (91/56), 33 degrees in 1982 (83/50), 33 degrees in 1985 (84/51), 33 degrees in 1992 (80/47) and 31 degrees in 1983 (94/63).
On the cool side, in 1986 (tied with 1965 (73/45) as O'Hare's coolest June 25th)) the high was 77 with the record low of 41, a 36 degree spread. In 2004 the high was 72 with a low of 49. The other cold lows were 44 in 1979 and 47 in 1992. The record coolest high of 56 occurred back in 1928 at the University of Chicago. 24 of the last 33 lows (73%) were in the: 50s (10) and 60s (14). O'Hare recorded six consecutive 50s & 60s lows from 1980 through 1985. Four lows (12%) were in the cool 40s and five lows (15%) were in the warm 70s. O'Hare's coolest high of the date was 69 degrees in 1970.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:19. The moon is waxing crescent and will reach first quarter tomorrow at 22:30. Illumination was 30% at midnight, will be 35% at noon and 40% at midnight tonight. Moonrise was at 11:35 this morning. Moonset is at 23:54 tonight. Moonrise is at 12:43 tomorrow afternoon. Moonlight time is 12 hours, 19 minutes which is 37 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in nine days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 83 and the normal low is 61. I've calculated the 33-year averages at 85 and 60.
On the hot side, in 1988 the high was the record high of 103 with a low of 66, a 37 degree spread. That high of 103 is the second hottest high ever at O'Hare. Three years ago, in 2009, the high was 94 with a low of 75 (O'Hare's warmest low of the date). 1988 and 2009 have means of 84.5 and thus are O'Hare's warmest June 25ths. The other hot high was 95 in 1998. The other warm low was 73 in 2002. The record warmest low of 76 occurred way back in 1890, at a time when the official readings were taken adjacent to Lake Michigan. 19 of the past 33 highs (58%) were in the 80s. O'Hare recorded six consecutive 80s highs from 1990 through 1995. Seven highs (21%) were in the warm: 90s (6) and 100s (1). Seven highs (21%) were in the cool 70s. O'Hare's second hottest high of the date was 96 in 1969.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1978 the high was 75 with a low of 68, a seven degree spread. In 1974 the high was 70 with a low of 49, a cool day. In 1973 the high was 84 with a low of 50, a 34 degree spread. In 1971 highs and lows were nearly the same on the 25th (81/62) and 26th (82/61). In 1970 the high was a cool 69 with a low of 52, a cool day. In 1969 the high was a hot 96 with a low of 60, a 36 degree spread. In 1968 the high was a cool 71 degrees. In 1965 the high was 73 with a cold low of 45, a cool day. In 1963 the high was 90 with a low of 53, a 37 degree spread. In 1959, highs and lows were nearly the same on the 25th (91/70) and 26th (90/71).
More recently, the additional spreads were all large: 36 degrees in 1979 (80/44), 35 degrees in 1989 (91/56), 33 degrees in 1982 (83/50), 33 degrees in 1985 (84/51), 33 degrees in 1992 (80/47) and 31 degrees in 1983 (94/63).
On the cool side, in 1986 (tied with 1965 (73/45) as O'Hare's coolest June 25th)) the high was 77 with the record low of 41, a 36 degree spread. In 2004 the high was 72 with a low of 49. The other cold lows were 44 in 1979 and 47 in 1992. The record coolest high of 56 occurred back in 1928 at the University of Chicago. 24 of the last 33 lows (73%) were in the: 50s (10) and 60s (14). O'Hare recorded six consecutive 50s & 60s lows from 1980 through 1985. Four lows (12%) were in the cool 40s and five lows (15%) were in the warm 70s. O'Hare's coolest high of the date was 69 degrees in 1970.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:44 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 24 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:19. The moon is waxing crescent and will reach first quarter tomorrow at 22:30. Illumination was 30% at midnight, will be 35% at noon and 40% at midnight tonight. Moonrise was at 11:35 this morning. Moonset is at 23:54 tonight. Moonrise is at 12:43 tomorrow afternoon. Moonlight time is 12 hours, 19 minutes which is 37 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in nine days.
Monday, June 25, 2012
June 24: ORD
Today is June 24th. It's the 176th day of the year. 190 days remain. It's week 26 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 61. I've calculated the 33-year averages at 83 and 60.
On the hot side, in 2005 (O'Hare's warmest June 24th) the high was 96 (O'Hare's hottest high of the date) with a low of 76 (O'Hare's warmest low of the date). Three years ago, in 2009 (O'Hare's second warmest June 24th), the high was 94 with a low of 75. In 1997 (O'Hare's third warmest June 24th) the high was 93 with a low of 75. Those lows of 75 are O'Hare's second warmest of the date. The other hot highs were 94 in 1995 and 94 in 1998. The record high of 97 was last set in 1953 at Midway, having originally been set in 1937 at the University of Chicago. The record warmest low of 77 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 29 of the past 33 highs (88%) were in the: 70s (8), 80s (11) and 90s (10). Four highs were in the cool 60s.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: in 1974 the high was a cool 67 with a low of 51, a cool day. In 1972 the high was a cool 70 degrees. In 1969 the high was a cool 66 with a low of 59, a seven degree spread. In 1967 the high was a cool 68 degrees. In 1965 the low was a cold 48 degrees. In 1963 the high was 88 with a cold low of 48, a 40 degree spread. In 1961 the low was a cold 47 degrees. In 1959 the high was 90 with a low of 60, a 30 degree spread.
More recently, the spreads were all large: 31 degrees in 1987 (91/60), 31 degrees in 1995 (94/63), 31 degrees in 2001 (81/50), 31 degrees in 2006 (82/51) and 30 degrees in 1983 (91/61). O'Hare recorded consecutive days of a spread of 40 degrees in 1963. On June 23rd, it was 84 and 44. On June 24th, it was 88 and 48.
On the cool side, in 1986 (O'Hare's coolest June 24th) the high was 61 (O'Hare's coolest high of the date) with the record low of 46. In 1979 (tied with 1974 as O'Hare's second coolest June 24th) the high was 69 with a low of 49. The other cold low was 49 in 1990. The other cool highs were 68 last year (in 2011), 69 in 1994 and 70 in 2004. The record coolest high of 59 occurred back in 1917, at a time when the official readings were taken adjacent to Lake Michigan. 26 of the last 33 lows (79%) were in the: 50s (12) and 60s (14). Consecutive lows in the 50s & 60s occurred as follows: six from 1980 through 1985, six from 1991 through 1996 and six from 1999 through 2004. 69% of the 50s & 60s lows occurred in the aforementioned streaks. Three lows (9%) were in the cold 40s, occurring from 1979 through 1990. Additionally, prior to 1979, O'Hare recorded three 40s lows from 1961 through 1965. Four lows (12%) were in the warm 70s. Except for 1972, all of O'Hare's 70s lows occurred from 1997 through 2009.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 25 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 21% at midnight, will be 25% at noon and 30% at midnight tonight. Moonrise was at 10:29 this morning. Moonset is at 23:25 tonight. Moonrise is at 11:35 tomorrow morning. Moonlight time is 12 hours, 56 minutes which is 36 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in ten days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 61. I've calculated the 33-year averages at 83 and 60.
On the hot side, in 2005 (O'Hare's warmest June 24th) the high was 96 (O'Hare's hottest high of the date) with a low of 76 (O'Hare's warmest low of the date). Three years ago, in 2009 (O'Hare's second warmest June 24th), the high was 94 with a low of 75. In 1997 (O'Hare's third warmest June 24th) the high was 93 with a low of 75. Those lows of 75 are O'Hare's second warmest of the date. The other hot highs were 94 in 1995 and 94 in 1998. The record high of 97 was last set in 1953 at Midway, having originally been set in 1937 at the University of Chicago. The record warmest low of 77 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 29 of the past 33 highs (88%) were in the: 70s (8), 80s (11) and 90s (10). Four highs were in the cool 60s.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: in 1974 the high was a cool 67 with a low of 51, a cool day. In 1972 the high was a cool 70 degrees. In 1969 the high was a cool 66 with a low of 59, a seven degree spread. In 1967 the high was a cool 68 degrees. In 1965 the low was a cold 48 degrees. In 1963 the high was 88 with a cold low of 48, a 40 degree spread. In 1961 the low was a cold 47 degrees. In 1959 the high was 90 with a low of 60, a 30 degree spread.
More recently, the spreads were all large: 31 degrees in 1987 (91/60), 31 degrees in 1995 (94/63), 31 degrees in 2001 (81/50), 31 degrees in 2006 (82/51) and 30 degrees in 1983 (91/61). O'Hare recorded consecutive days of a spread of 40 degrees in 1963. On June 23rd, it was 84 and 44. On June 24th, it was 88 and 48.
On the cool side, in 1986 (O'Hare's coolest June 24th) the high was 61 (O'Hare's coolest high of the date) with the record low of 46. In 1979 (tied with 1974 as O'Hare's second coolest June 24th) the high was 69 with a low of 49. The other cold low was 49 in 1990. The other cool highs were 68 last year (in 2011), 69 in 1994 and 70 in 2004. The record coolest high of 59 occurred back in 1917, at a time when the official readings were taken adjacent to Lake Michigan. 26 of the last 33 lows (79%) were in the: 50s (12) and 60s (14). Consecutive lows in the 50s & 60s occurred as follows: six from 1980 through 1985, six from 1991 through 1996 and six from 1999 through 2004. 69% of the 50s & 60s lows occurred in the aforementioned streaks. Three lows (9%) were in the cold 40s, occurring from 1979 through 1990. Additionally, prior to 1979, O'Hare recorded three 40s lows from 1961 through 1965. Four lows (12%) were in the warm 70s. Except for 1972, all of O'Hare's 70s lows occurred from 1997 through 2009.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 25 minutes between twilights. We lost no minutes of daylight from yesterday. Tomorrow twilight begins at 4:44 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 21% at midnight, will be 25% at noon and 30% at midnight tonight. Moonrise was at 10:29 this morning. Moonset is at 23:25 tonight. Moonrise is at 11:35 tomorrow morning. Moonlight time is 12 hours, 56 minutes which is 36 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in ten days.
June 23: ORD
Today is June 23rd. It's the 175th day of the year. 191 days remain. It's week 25 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 61. I've calculated the 33-year averages at 81 and 60.
On the hot side, three years ago, in 2009 (O'Hare's warmest June 23rd), the high was 94 (with the high of 94 in 1968, O'Hare's hottest highs of the date) with a low of 71. In 1997 the high was 92 with a low of 72. Five years later, in 2002, the high was also 92 with a low of 72. Those lows of 72 are O'Hare's warmest lows of the date. The record high of 97 was set back in 1930 at the University of Chicago. The record warmest low of 79 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 25 of the past 33 highs (76%) were in the: 70s (11) and 80s (14). There were 11 consecutive 70s & 80s highs from 1984 through 1994. Six highs (18%) were in the hot 90s. Two highs (6%) were in the cool: 50s (1) and 60s (1).
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1974 the high was a cool 63 with a low of 51, a cool day. In 1972 the high was 70 with a low of 44, a cool day. In 1969 the high was a cool 67 degrees. In 1968 the high was a hot 94 with a low of 58, a 36 degree spread. In 1963 the high was 84 with a cold low of 44, a 40 degree spread. The lows of 44 in 1963 and 1972 unofficially tied the record low.
More recently, there was one small spread of five degrees in 2007 (67/62). The additional large spreads were: 33 degrees in 2005 (93/60), 31 degrees in 1983 (93/62) and 31 degrees in 1993 (87/56).
On the cool side, in 1979 (O'Hare's coolest June 23rd) the high was 59 (O'Hare's coolest high of the date) with a low of 50. Three years later, in 1982, the high was 75 with the record low of 44, a 31 degree spread. The record coolest high of 58 occurred at Midway in 1979. The other cool high was 67 in 2007. 28 of the last 33 lows (85%) were in the: 50s (14) and 60s (14). One low was in the cold 40s. Four lows were in the warm 70s. There's a tie for O'Hare's second coolest June 23rd. In 1972 the high was 70 with a low of 44 (tied with the record low). Two years later, in 1974, the high was 63 with a low of 51. The other cold, record-tying low was 44 in 1963.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 25 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:43 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 13% at midnight, will be 17% at noon and 21% at midnight tonight. Moonrise was at 9:24 this morning. Moonset is at 22:56 tonight. Moonrise is at 10:29 tomorrow morning. Moonlight time is 13 hours, 32 minutes which is 34 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in 11 days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 61. I've calculated the 33-year averages at 81 and 60.
On the hot side, three years ago, in 2009 (O'Hare's warmest June 23rd), the high was 94 (with the high of 94 in 1968, O'Hare's hottest highs of the date) with a low of 71. In 1997 the high was 92 with a low of 72. Five years later, in 2002, the high was also 92 with a low of 72. Those lows of 72 are O'Hare's warmest lows of the date. The record high of 97 was set back in 1930 at the University of Chicago. The record warmest low of 79 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 25 of the past 33 highs (76%) were in the: 70s (11) and 80s (14). There were 11 consecutive 70s & 80s highs from 1984 through 1994. Six highs (18%) were in the hot 90s. Two highs (6%) were in the cool: 50s (1) and 60s (1).
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1974 the high was a cool 63 with a low of 51, a cool day. In 1972 the high was 70 with a low of 44, a cool day. In 1969 the high was a cool 67 degrees. In 1968 the high was a hot 94 with a low of 58, a 36 degree spread. In 1963 the high was 84 with a cold low of 44, a 40 degree spread. The lows of 44 in 1963 and 1972 unofficially tied the record low.
More recently, there was one small spread of five degrees in 2007 (67/62). The additional large spreads were: 33 degrees in 2005 (93/60), 31 degrees in 1983 (93/62) and 31 degrees in 1993 (87/56).
On the cool side, in 1979 (O'Hare's coolest June 23rd) the high was 59 (O'Hare's coolest high of the date) with a low of 50. Three years later, in 1982, the high was 75 with the record low of 44, a 31 degree spread. The record coolest high of 58 occurred at Midway in 1979. The other cool high was 67 in 2007. 28 of the last 33 lows (85%) were in the: 50s (14) and 60s (14). One low was in the cold 40s. Four lows were in the warm 70s. There's a tie for O'Hare's second coolest June 23rd. In 1972 the high was 70 with a low of 44 (tied with the record low). Two years later, in 1974, the high was 63 with a low of 51. The other cold, record-tying low was 44 in 1963.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:18. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 16 minutes of daylight today and 16 hours, 25 minutes between twilights. We lost a minute of daylight from yesterday. Tomorrow twilight begins at 4:43 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 13% at midnight, will be 17% at noon and 21% at midnight tonight. Moonrise was at 9:24 this morning. Moonset is at 22:56 tonight. Moonrise is at 10:29 tomorrow morning. Moonlight time is 13 hours, 32 minutes which is 34 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in 11 days.
June 22: ORD
Today is June 22nd. It's the 174th day of the year. 192 days remain. It's week 25 of the year.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 60. I've calculated the 33-year averages at 82 and 60.
On the hot side, in 1988 (O'Hare's hottest June 22nd) the high was the record high of 97 with a low of 66, a 31 degree spread. In 1995 the high was 93 with a low of 69 (O'Hare's co-warmest low of the date). 1988 and 1995 were two of our hottest summers. The other co-warmest low of 69 occurred two years ago in 2010. The record warmest low of 76 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 24 of the past 33 highs (73%) were in the: 70s (9) and 80s (15). O'Hare recorded nine consecutive 70s & 80s highs from 2003 through 2011. Five highs (15%) were in the hot 90s. Our most recent 90s high was 92 in 2002. Four (12%) were in the cool 60s.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1974 the high was a cool 65 with a low of 52, a cool day. In 1972 the high was a cool 67 with a low of 49, a cool day. In 1969 the high was a cool 66 with a low of 59, a seven degree spread. In 1965 the high was 88 with a low of 52, a 36 degree spread. In 1963 the high was 77 with a cold low of 36, a 41 degree spread and cool day. That low of 36 was colder than the official low. In 1961, the temps (high of 82, low of 60) matched our current normals. In 1959 the high was a cool 70 degrees.
More recently, there were three additional large spreads: 31 degrees in 1993 (87/56), 31 degrees in 2003 (85/54) and 30 degrees in 1994 (88/58). There was a small spread of seven degrees in 1991 (67/60).
On the cool side, in 1992 (O'Hare's coolest June 22nd) the high was 65 (O'Hare's coolest high of the date along with 1974) with a low of 41. A decade earlier, in 1982, the high was 69 with a low of 46. The other cool highs were 67 in 1991 and 69 in 2001. The record low of 40 was set way back in 1875. The record coolest high of 55 occurred way back in 1881. Both records were set at a time when the official readings were taken adjacent to Lake Michigan. 31 of the last 33 lows (94%) were in the: 50s (12) and 60s (19). Two lows were in the cool 40s. O'Hare's coldest low of 36 occurred in 1963. This low is colder than the current record low of 40 set in 1875.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:17. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 17 minutes of daylight today and 16 hours, 25 minutes between twilights. We gained a minute of daylight from yesterday. Today is the longest day of the year. Tomorrow twilight begins at 4:43 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 7% at midnight, will be 10% at noon and 13% at midnight tonight. Moonrise was at 8:20 this morning. Moonset is at 22:26 tonight. Moonrise is at 9:24 tomorrow morning. Moonlight time is 14 hours, 6 minutes which is 30 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in 12 days.
Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between November 1978 and last year. ORD has been the official site of record for Chicago since Thursday, January 17, 1980. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 60. I've calculated the 33-year averages at 82 and 60.
On the hot side, in 1988 (O'Hare's hottest June 22nd) the high was the record high of 97 with a low of 66, a 31 degree spread. In 1995 the high was 93 with a low of 69 (O'Hare's co-warmest low of the date). 1988 and 1995 were two of our hottest summers. The other co-warmest low of 69 occurred two years ago in 2010. The record warmest low of 76 occurred back in 1923, at a time when the official readings were taken adjacent to Lake Michigan. 24 of the past 33 highs (73%) were in the: 70s (9) and 80s (15). O'Hare recorded nine consecutive 70s & 80s highs from 2003 through 2011. Five highs (15%) were in the hot 90s. Our most recent 90s high was 92 in 2002. Four (12%) were in the cool 60s.
In looking back through the years to the first June at O'Hare in 1959, the following instances were notable: In 1974 the high was a cool 65 with a low of 52, a cool day. In 1972 the high was a cool 67 with a low of 49, a cool day. In 1969 the high was a cool 66 with a low of 59, a seven degree spread. In 1965 the high was 88 with a low of 52, a 36 degree spread. In 1963 the high was 77 with a cold low of 36, a 41 degree spread and cool day. That low of 36 was colder than the official low. In 1961, the temps (high of 82, low of 60) matched our current normals. In 1959 the high was a cool 70 degrees.
More recently, there were three additional large spreads: 31 degrees in 1993 (87/56), 31 degrees in 2003 (85/54) and 30 degrees in 1994 (88/58). There was a small spread of seven degrees in 1991 (67/60).
On the cool side, in 1992 (O'Hare's coolest June 22nd) the high was 65 (O'Hare's coolest high of the date along with 1974) with a low of 41. A decade earlier, in 1982, the high was 69 with a low of 46. The other cool highs were 67 in 1991 and 69 in 2001. The record low of 40 was set way back in 1875. The record coolest high of 55 occurred way back in 1881. Both records were set at a time when the official readings were taken adjacent to Lake Michigan. 31 of the last 33 lows (94%) were in the: 50s (12) and 60s (19). Two lows were in the cool 40s. O'Hare's coldest low of 36 occurred in 1963. This low is colder than the current record low of 40 set in 1875.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:43 and sunrise is at 5:17. Sunset is at 20:34 and twilight ends at 21:08. There's a total of 15 hours, 17 minutes of daylight today and 16 hours, 25 minutes between twilights. We gained a minute of daylight from yesterday. Today is the longest day of the year. Tomorrow twilight begins at 4:43 and sunrise is at 5:18. The moon is waxing crescent. Illumination was 7% at midnight, will be 10% at noon and 13% at midnight tonight. Moonrise was at 8:20 this morning. Moonset is at 22:26 tonight. Moonrise is at 9:24 tomorrow morning. Moonlight time is 14 hours, 6 minutes which is 30 minutes shorter than yesterday.
Summer began on June 4th and runs for 110 days through September 21st. High temperatures in this period are usually in the 70s and 80s. Highs in the 90s and 100s occur infrequently. Independence Day is in 12 days.
Subscribe to:
Posts (Atom)
