Today is August 17th. It's the 230th day of the year. 136 days remain. It's week 33 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 63. I've calculated the 33-year
averages at 82 and 63.
On the hot side, in 1988 (O'Hare's warmest August 17th) the high was the record high of 98 with a
low of 77. That record high of 98 was originally set in 1947. The low of 77 is tied with a low of 77 in 1972 as O'Hare's warmest lows of the date. In 1995
the high was 93 (O'Hare's third hottest high of the date) with a low of 72. In 1983
the high was 94 (O'Hare's second hottest high of the date) with a low of 68. The record warmest low of 78
occurred in 1972 at Midway. 30 of the past 33 highs (91%) were in the: 70s (12) and 80s (18). Three highs were in the hot 90s. O'Hare's second warmest August 17th was in 1972 as the high was 92 with a low of 77.
In looking back through the years to the first August at O'Hare in
1959, the following instances were notable: In 1976 the high was 80
with a cold low of 47, a 33 degree spread. That low of 47 was colder
than the record low and 1976 is the year of the record low (48 at
Midway). In 1972 the high was 92 with a warm low of 77, a hot day. 1972
is the year of the record warmest low (78 at Midway). In 1966
the high was 88 with a low of 57, a 31 degree spread. In 1963 the
high was 69 with a cold low of 46, a cool day. That low of 46 is
colder than the record low. In 1962 the high was 81 with a cold low of
51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (high of 74, low of 70).
On the cool side, in 1981 (O'Hare's second coolest August 17th) the high was 73 with a low of 51. In 1992 (O'Hare's third coolest August 17th) the high was 77 with a low of 49. The
record low of 48 was set in 1976 at Midway. The record coolest high of 66
occurred back in 1924, at a time when the official readings were taken adjacent to Lake
Michigan. 19
of the last 33 lows (58%) were in the 60s. There were six consecutive 60s lows at O'Hare from 1997 through 2002. Nine lows (27%) were in the
cool: 40s (1) and 50s (8). Five lows (15%) were in the warm 70s. O'Hare's coolest August 17th was in 1963 as the high was 69 (O'Hare's coolest high of the date) with a low of 46 (O'Hare's coldest low of the date). The other cold lows were 47 in 1976 and 51 in 1962.
As
you can see, this is a day dominated by highs in the 70s and 80s.
There's an ongoing long stretch of such highs. This is 16 years from
1996 through last year, 2011.
The
following
astronomical data
is
provided by
the
United
States
Naval
Observatory. In
Crystal
Lake,
twilight begins
at 5:33 and
sunrise is
at 6:03.
Sunset is at 19:50
and
twilight
ends at 20:20.
There's
a total
of 13 hours, 47 minutes of
daylight
today
and 14
hours, 47 minutes between
twilights.
We lost three minutes of daylight from
yesterday. Tomorrow
twilight
begins
at 5:35 and sunrise
is at 6:04.
The moon is new today at 10:54. Illumination
was 0% at
midnight, will be 0% at noon
and 1% at
midnight
tonight. Moonrise was at 6:08 this
morning. Moonset is at 19:31 tonight. Moonrise is at 7:15 tomorrow morning. Moonlight
time is 13 hours, 23 minutes which is 35 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. Labor Day is in 17 days.
Showing posts with label August 17. Show all posts
Showing posts with label August 17. Show all posts
Tuesday, August 21, 2012
Wednesday, August 17, 2011
August 17: ORD
Today is August 17th. It's the 229th day of the year. 136 days remain. It's week 33 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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 32-year averages at 82 and 63.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. That record high of 98 was originally set in 1947. In 1995 the high was 93 (our most recent 90s high) with a low of 72. In 1983 the high was 94 with a low of 68. There were two other 70s lows: 71 in 2003 and 70 two years ago in 2009. The record warmest low of 78 occurred in 1972. 29 of the past 32 highs (91%) were in the: 70s (12) and 80s (17). Three highs were in the hot 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a cold low of 47, a 33 degree spread. That low of 47 was colder than the record low and 1976 is the year of the record low (48 at Midway). In 1972 the high was 92 with a warm low of 77, a hot day. 1972 is the year of the record warmest low (78 at Midway). In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a cold low of 46, a cool day. That low of 46 is colder than the record low. In 1962 the high was 81 with a cool low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (high of 74, low of 70).
On the cool side, in 1981 the high was 73 with a low of 51. In 1992 the high was 77 with a low of 49, our only 40s low. The record low of 48 was set in 1976. The record coolest high of 66 occurred back in 1924. The official thermometer was located near Lake Michigan at the time. 18 of the last 32 lows (56%) were in the 60s. Nine lows (28%) were in the cool: 40s (1) and 50s (8). Five lows (16%) were in the warm 70s.
As you can see, this is a day dominated by highs in the 70s and 80s. There's an ongoing long stretch of such highs. This is 15 years from 1996 through last year, 2010.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 5:33 and sunrise is at 6:03. Sunset is at 19:51 and twilight ends at 20:21. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. We lost three minutes of daylight from yesterday. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. The moon is waning gibbous. Illumination was 89% at midnight, will be 86% at noon and 82% at midnight tonight. Moonset is at 9:57 this morning. Moonrise is at 21:15 tonight. Moonset is at 10:56 tomorrow morning. Moonlight time is 12 hours, 42 minutes which is 36 minutes longer than yesterday.
Summer began June 4 and runs for 110 days through September 21. High temperatures in this period are usually in the 70s and 80s. Highs in the 60s, 90s and 100s occur infrequently. Labor Day is in 19 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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 32-year averages at 82 and 63.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. That record high of 98 was originally set in 1947. In 1995 the high was 93 (our most recent 90s high) with a low of 72. In 1983 the high was 94 with a low of 68. There were two other 70s lows: 71 in 2003 and 70 two years ago in 2009. The record warmest low of 78 occurred in 1972. 29 of the past 32 highs (91%) were in the: 70s (12) and 80s (17). Three highs were in the hot 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a cold low of 47, a 33 degree spread. That low of 47 was colder than the record low and 1976 is the year of the record low (48 at Midway). In 1972 the high was 92 with a warm low of 77, a hot day. 1972 is the year of the record warmest low (78 at Midway). In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a cold low of 46, a cool day. That low of 46 is colder than the record low. In 1962 the high was 81 with a cool low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (high of 74, low of 70).
On the cool side, in 1981 the high was 73 with a low of 51. In 1992 the high was 77 with a low of 49, our only 40s low. The record low of 48 was set in 1976. The record coolest high of 66 occurred back in 1924. The official thermometer was located near Lake Michigan at the time. 18 of the last 32 lows (56%) were in the 60s. Nine lows (28%) were in the cool: 40s (1) and 50s (8). Five lows (16%) were in the warm 70s.
As you can see, this is a day dominated by highs in the 70s and 80s. There's an ongoing long stretch of such highs. This is 15 years from 1996 through last year, 2010.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 5:33 and sunrise is at 6:03. Sunset is at 19:51 and twilight ends at 20:21. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. We lost three minutes of daylight from yesterday. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. The moon is waning gibbous. Illumination was 89% at midnight, will be 86% at noon and 82% at midnight tonight. Moonset is at 9:57 this morning. Moonrise is at 21:15 tonight. Moonset is at 10:56 tomorrow morning. Moonlight time is 12 hours, 42 minutes which is 36 minutes longer than yesterday.
Summer began June 4 and runs for 110 days through September 21. High temperatures in this period are usually in the 70s and 80s. Highs in the 60s, 90s and 100s occur infrequently. Labor Day is in 19 days.
Wednesday, August 18, 2010
August 17: ORD
Today is August 17th. It's the 229th day of the year. 136 days remain. It's week 33 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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 31-year averages at 82 and 63.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. There were two other highs in the 90s: 94 in 1983 and 93 in 1995. There were four other 70s lows: 72 in 1995, 71 in 2003 and 70 in 1990 and 70 last year. The record warmest low of 78 occurred back in 1972. Over the last 31 years, 28 highs were: 70s (11) and 80s (17). Three highs were in the warmer 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a low of 47, a 33 degree spread. That low of 47 was cooler than the record low and 1976 is the year of the record low (48 at Midway). In 1972 the high was 92 with a warm low of 77, a hot day. 1972 is the year of the record warmest low (78 at Midway). In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a cool low of 46, a cool day. That low of 46 is cooler than the record low. In 1962 the high was 81 with a cool low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (74/70).
On the cool side, there were no days of a mean of at least 11.5 degrees below normal. Two days stand out as coolest. In 1981 the high was 73 with a low of 51 and in 1992 the high was 77 with a low of 49. The record low of 48 was set in 1976. The record coolest high of 66 occurred back in 1924. The official thermometer was located near Lake Michigan at the time. Over the last 31 years, 17 lows were 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Five lows were in the warmer 70s, including last year's low of 70.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight began at 5:33 and sunrise was at 6:03. Sunset is at 19:51 and twilight ends at 20:21. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. We are losing two or three minutes of daylight a day. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. The moon is waxing gibbous and reached first quarter yesterday at 13:14. Illumination was 55% at midnight, will be 61% at noon and 65% at midnight tonight. Moonrise is at 15:10 this afternoon. Moonset is at 11 minutes past midnight tonight. Moonrise is at 16:06 tomorrow afternoon. Moonlight time is 8 hours, 50 minutes which is 28 minutes shorter than yesterday. -Bernie-
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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 31-year averages at 82 and 63.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. There were two other highs in the 90s: 94 in 1983 and 93 in 1995. There were four other 70s lows: 72 in 1995, 71 in 2003 and 70 in 1990 and 70 last year. The record warmest low of 78 occurred back in 1972. Over the last 31 years, 28 highs were: 70s (11) and 80s (17). Three highs were in the warmer 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a low of 47, a 33 degree spread. That low of 47 was cooler than the record low and 1976 is the year of the record low (48 at Midway). In 1972 the high was 92 with a warm low of 77, a hot day. 1972 is the year of the record warmest low (78 at Midway). In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a cool low of 46, a cool day. That low of 46 is cooler than the record low. In 1962 the high was 81 with a cool low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (74/70).
On the cool side, there were no days of a mean of at least 11.5 degrees below normal. Two days stand out as coolest. In 1981 the high was 73 with a low of 51 and in 1992 the high was 77 with a low of 49. The record low of 48 was set in 1976. The record coolest high of 66 occurred back in 1924. The official thermometer was located near Lake Michigan at the time. Over the last 31 years, 17 lows were 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Five lows were in the warmer 70s, including last year's low of 70.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight began at 5:33 and sunrise was at 6:03. Sunset is at 19:51 and twilight ends at 20:21. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. We are losing two or three minutes of daylight a day. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. The moon is waxing gibbous and reached first quarter yesterday at 13:14. Illumination was 55% at midnight, will be 61% at noon and 65% at midnight tonight. Moonrise is at 15:10 this afternoon. Moonset is at 11 minutes past midnight tonight. Moonrise is at 16:06 tomorrow afternoon. Moonlight time is 8 hours, 50 minutes which is 28 minutes shorter than yesterday. -Bernie-
Monday, August 17, 2009
August 17: ORD
Today is August 17th. It's the 229th day of the year. 136 days remain. It's week 33 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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 30-year averages at 82 and 62.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. There were two other highs in the 90s: 94 in 1983 and 93 in 1995. There were three other 70s lows: 72 in 1995, 71 in 2003 and 70 in 1990. The record warmest low of 78 occurred back in 1972. Over the last 30 years, 26 highs were: 70s (11) and 80s (15). Three highs were in the warmer 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a low of 47, a 33 degree spread. That low of 47 was cooler than the record low. In 1972 the high was 92 with a low of 77. In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a low of 46, a cool day. That low of 46 is cooler than the record low. In 1962 the high was 81 with a low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (74/70).
On the cool side, there were no days of a mean of at least 11.5 degrees below normal. The coolest lows were 49 in 1992 and 51 in 1981. The record low of 48 was set in 1976. The coolest high was 73 in 1981. The record coolest high of 66 was set back in 1924. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 16 lows were 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Four lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight was at 5:33 and sunrise was at 6:03. Sunset is at 19:51 and twilight ends at 20:21. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. The moon is waning crescent. Illumination was 14% at midnight, will be 10% at noon and 7% at midnight tonight. Moonrise was at 2:21 this morning. Moonset is at 18:06 this evening. Moonrise is at 3:40 tomorrow morning. Moonlight time is 15 hours, 45 minutes which is 24 minutes shorter than yesterday.
My tennis coach, Bob Finder, will be 77 in two days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in three days. -Bernie-
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.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. I've calculated the 30-year averages at 82 and 62.
On the hot side, in 1988 the high was the record high of 98 with a low of 77. There were two other highs in the 90s: 94 in 1983 and 93 in 1995. There were three other 70s lows: 72 in 1995, 71 in 2003 and 70 in 1990. The record warmest low of 78 occurred back in 1972. Over the last 30 years, 26 highs were: 70s (11) and 80s (15). Three highs were in the warmer 90s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1976 the high was 80 with a low of 47, a 33 degree spread. That low of 47 was cooler than the record low. In 1972 the high was 92 with a low of 77. In 1966 the high was 88 with a low of 57, a 31 degree spread. In 1963 the high was 69 with a low of 46, a cool day. That low of 46 is cooler than the record low. In 1962 the high was 81 with a low of 51, a 30 degree spread.
More recently, there was a small spread of four degrees in 1990 (74/70).
On the cool side, there were no days of a mean of at least 11.5 degrees below normal. The coolest lows were 49 in 1992 and 51 in 1981. The record low of 48 was set in 1976. The coolest high was 73 in 1981. The record coolest high of 66 was set back in 1924. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 16 lows were 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Four lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight was at 5:33 and sunrise was at 6:03. Sunset is at 19:51 and twilight ends at 20:21. Tomorrow twilight begins at 5:34 and sunrise is at 6:04. There's a total of 13 hours, 48 minutes of daylight today and 14 hours, 48 minutes between twilights. The moon is waning crescent. Illumination was 14% at midnight, will be 10% at noon and 7% at midnight tonight. Moonrise was at 2:21 this morning. Moonset is at 18:06 this evening. Moonrise is at 3:40 tomorrow morning. Moonlight time is 15 hours, 45 minutes which is 24 minutes shorter than yesterday.
My tennis coach, Bob Finder, will be 77 in two days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in three days. -Bernie-
Sunday, August 17, 2008
August 17: ORD
Today is August 17th. It's the 230th day of the year. 136 days remain. Week 34 begins today.
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. Observations have been official at O'Hare since Thursday, January 17, 1980.
According to the National Climatic Data Center (NCDC), the normal high is 82 and the normal low is 63. The 29-year averages are 82 and 62.
On the cool side, in 1981 the high was 73 with a low of 51. In 1992 the high was 77 with a low of 49. In 1980 the high was 74 with a low of 57. In 1989 the high was 78 with a low of 53. There have been no highs in the low 70s (70, 71, 72). The record low of 48 was set in 1976 and the record coolest high of 66 was set in 1924. 16 of the 29 lows have been 60s and eight have been in the 50s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 5:33 and sunrise is at 6:03. Sunset is at 19:50 and twilight ends at 20:20. Twilight begins tomorrow at 5:34 and sunrise is at 6:04. There's a total of 13 hours, 47 minutes of daylight today and 14 hours, 47 minutes between twilights. The moon reached full yesterday at 16:16. Moon illumination was 100% at midnight, is 99% at noon and 98% at midnight tonight. Moonset is at 6:47 and moonrise is at 20:11. Moonlight time is 10 hours, 36 minutes today.
In two days my tennis coach, Bob Finder, will be 76 years old. He is a testament that age has nothing to do with ability and performance. He is a master of the sport and is a shining example of the wealth of knowledge our elders can give us, provided we just take the time to listen. I'd also like to congratulate my sister Chris and her husband Steve who will be celebrating their sixth anniversary in three days. ***Bernie***
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