Today is October 21st. It's the 295th day of the year. 71 days remain. It's week 42 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 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 this, 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 60
and the normal low is 41. I've calculated the 33-year averages at 60
and 43.
On
the warm side, in 1979 (O'Hare's warmest October 21st) the high was 84 (O'Hare's hottest high of the date) with a low of 70 (O'Hare's warmest low of the date). The record warmest low of 70 degrees was
set in 1979 at Midway. In 2007 (O'Hare's second warmest October 21st) the high was 80 (O'Hare's second hottest high of the date with 1978) and a low of 60. In 1986 the high was 77 with a low
of 52. The other warm highs were 74 degrees in 1977, 73 degrees in 1975 and 72 degrees in 1994. The record high of 87
degrees was set in 1953 at Midway. The other warm low of 55 degrees occurred in 2009. 26 of the past 33
highs (79%) were in the: 50s (16) and 60s (10). There were three long
periods of 50s and 60s highs. The first was six years from 1980
through 1985. The second was six years from 1988 through 1993. The third
was nine years from 1998 through 2006. Four highs (12%) were in the warm:
70s (2) and 80s (2). Three highs (9%) were in the cold 40s. The other warm days were in: 1971 (high of 73, low of 66 (O'Hare's second warmest low of the date)), 1978 (high of 80 (O'Hare's second hottest high of the date with 2007), low of 53) and 1963 (high of 69, low of 59).
In
looking back through the years to the first October at O'Hare in
1959, the following instances were notable: in 1978 the high was 80
with a low of 53, a warm day. In 1977 the high was a warm 74 degrees.
In 1976 the high was a cold 46 with a low of 30, a cold day. In 1975
the high was a warm 73 degrees. In 1974 the low was a cold 27
degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread.
In 1971 the high was 73 with a low of 66, a seven degree spread and
warm day. In 1968 the high was 69 with a low of 38, a 31 degree
spread. In 1963 the high was 69 with a warm low of 59, a warm day. In
1961 the high was 49 with a low of 44, a five degree spread. In 1960
the high was 49 with a cold low of 27, a cold day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There was a small spread of five degrees in 1983 (56/51).
On the cool side,
in 1987 (O'Hare's coolest October 21st) the high was 42 (O'Hare's coolest high of the date) with a low of 32. In 1995 the high was 43 (O'Hare's second coolest high of the date)
with a low of 36, a seven degree spread. In 1982 the high was 52 with a
low of 27. The record low of 26 degrees was set in 1952 at Midway. The record coolest high of 39 degrees occurred back in 1913, a time when the official readings were taken adjacent to Lake Michigan.
26 of the last 33 lows (79%) were in the: 30s (15) and 40s (11).
There were 14 consecutive 30s and 40s lows from 1987 through 2000. One
low (3%) was in the cold 20s. Six lows (18%) were in the warm: 50s (4), 60s (1) and 70s (1). 1960 and 1976 share O'Hare's second coolest October 21st days. In 1960 the high was 49 with a low of 27. In 1976 the high was 46 with the second coldest low of 30. O'Hare's coldest lows of the date were 27 degrees in 1960, 1974 and 1982.
There's an instance of back-to-back years in which temperatures were just about as opposite as they can be. In 1986 the high was 77 with a low of 52, overall 13.5 degrees ABOVE normal. Then in 1987 the high was 42 with a low of 32, overall 14 degrees BELOW normal.
The
following astronomical data is provided by the United States Naval
Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at
7:14. Sunset is at 18:01 and twilight ends at 18:30. There's a total of
10 hours, 47 minutes of daylight today and 11 hours, 45 minutes between
twilights. We lost four minutes of daylight from yesterday. Tomorrow
twilight begins at 6:46 and sunrise is at 7:15. The moon reaches first quarter today at 22:32. Illumination was 40% at midnight, will be 46% at noon and 51%
at midnight tonight. Moonrise is at 13:36 this afternoon. Moonset is at
23:54 tonight. Moonrise is at 14:14 tomorrow afternoon. Moonlight time
is 10 hours, 18 minutes which is 24 minutes longer than yesterday.
Warm Fall began September 22nd and runs for 41 days through November 1st. High temperatures in this period are usually in the 50s, 60s and 70s. Highs in the 30s and 40s occur infrequently. United Nations Day is in three days. Halloween is in ten days. Election Day is in 16 days. Standard
Time doesn't return until November 4th.
Showing posts with label October 21. Show all posts
Showing posts with label October 21. Show all posts
Tuesday, October 23, 2012
Friday, October 21, 2011
October 21: ORD
Today is October 21st. It's the 294th day of the year. 71 days remain. It's week 42 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 was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. 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 60 and the normal low is 41. I've calculated the 32-year averages at 60 and 43.
On the warm side, in 1979 the high was 84 with a low of 70, the only 70s low for October 21st at O'Hare ever. The record warmest low of 70 was set in 1979 at Midway. In 2007 the high was 80 with a low of 60, the only 60s low of the past 32 years. In 1986 the high was 77 with a low of 52. The other warm high was 72 in 1994, our most recent 70s high. The only other 80s high at O'Hare was 80 in 1978. The record high of 87 was set in 1953 at Midway. 25 of the past 32 highs (78%) were in the: 50s (15) and 60s (10). There were three long periods of 50s & 60s highs. The first was six years from 1980 through 1985. The second was six years from 1988 through 1993. The third was nine years from 1998 through 2006. Four highs were in the warm: 70s (2) and 80s (2). Three highs were in the cold 40s. There were also three cold 40s highs between 1960 and 1976.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was a cold 46 with a low of 30, a cold day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cold 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a warm low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a cold low of 27, a cold day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There was a small spread of five degrees in 1983 (56/51).
On the cold side, in 1987 the high was 42 with a low of 32. In 1995 the high was 43 with a low of 36, a seven degree spread. In 1982 the high was 52 with a low of 27. The only other 20s lows were 27 degrees (in 1960 & 1974). The record low of 26 was set in 1952 at Midway. The record coolest high of 39 occurred back in 1913, a time when the official readings were taken adjacent to Lake Michigan. 25 of the last 32 lows (78%) were in the: 30s (14) and 40s (11). There were 14 straight 30s & 40s lows from 1987 through 2000. One low was in the cold 20s, a total of just three in O'Hare's history for the date. Six lows were in the warm: 50s (4), 60s (1) and 70s (1). The only other 60s low is 66 in 1971, a total of just three 60s or 70s lows for the date, a rare occurrence.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:44 and sunrise is at 7:13. Sunset is at 18:03 and twilight ends at 18:31. There's a total of 10 hours, 50 minutes of daylight today and 11 hours, 47 minutes between twilights. We lost two minutes of daylight from yesterday. Tomorrow twilight begins at 6:45 and sunrise is at 7:14. The moon is waning crescent and reached last quarter two nights ago at 22:30. Illumination was 38% at midnight, will be 33% at noon and 28% at midnight tonight. Moonrise is at 0:56 this morning. Moonset is at 14:52 this afternoon. Moonrise is at 2:06 tomorrow morning. Moonlight time is 13 hours, 56 minutes which is 24 minutes shorter than yesterday.
Warm Fall began September 22 and runs for 41 days through November 1. High temperatures in this period are usually in the 50s, 60s and 70s. Highs in the 30s and 40s occur infrequently. United Nations Day is in three 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 was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. 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 60 and the normal low is 41. I've calculated the 32-year averages at 60 and 43.
On the warm side, in 1979 the high was 84 with a low of 70, the only 70s low for October 21st at O'Hare ever. The record warmest low of 70 was set in 1979 at Midway. In 2007 the high was 80 with a low of 60, the only 60s low of the past 32 years. In 1986 the high was 77 with a low of 52. The other warm high was 72 in 1994, our most recent 70s high. The only other 80s high at O'Hare was 80 in 1978. The record high of 87 was set in 1953 at Midway. 25 of the past 32 highs (78%) were in the: 50s (15) and 60s (10). There were three long periods of 50s & 60s highs. The first was six years from 1980 through 1985. The second was six years from 1988 through 1993. The third was nine years from 1998 through 2006. Four highs were in the warm: 70s (2) and 80s (2). Three highs were in the cold 40s. There were also three cold 40s highs between 1960 and 1976.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was a cold 46 with a low of 30, a cold day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cold 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a warm low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a cold low of 27, a cold day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There was a small spread of five degrees in 1983 (56/51).
On the cold side, in 1987 the high was 42 with a low of 32. In 1995 the high was 43 with a low of 36, a seven degree spread. In 1982 the high was 52 with a low of 27. The only other 20s lows were 27 degrees (in 1960 & 1974). The record low of 26 was set in 1952 at Midway. The record coolest high of 39 occurred back in 1913, a time when the official readings were taken adjacent to Lake Michigan. 25 of the last 32 lows (78%) were in the: 30s (14) and 40s (11). There were 14 straight 30s & 40s lows from 1987 through 2000. One low was in the cold 20s, a total of just three in O'Hare's history for the date. Six lows were in the warm: 50s (4), 60s (1) and 70s (1). The only other 60s low is 66 in 1971, a total of just three 60s or 70s lows for the date, a rare occurrence.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:44 and sunrise is at 7:13. Sunset is at 18:03 and twilight ends at 18:31. There's a total of 10 hours, 50 minutes of daylight today and 11 hours, 47 minutes between twilights. We lost two minutes of daylight from yesterday. Tomorrow twilight begins at 6:45 and sunrise is at 7:14. The moon is waning crescent and reached last quarter two nights ago at 22:30. Illumination was 38% at midnight, will be 33% at noon and 28% at midnight tonight. Moonrise is at 0:56 this morning. Moonset is at 14:52 this afternoon. Moonrise is at 2:06 tomorrow morning. Moonlight time is 13 hours, 56 minutes which is 24 minutes shorter than yesterday.
Warm Fall began September 22 and runs for 41 days through November 1. High temperatures in this period are usually in the 50s, 60s and 70s. Highs in the 30s and 40s occur infrequently. United Nations Day is in three days.
Thursday, October 21, 2010
October 21: ORD
Today is October 21st. It's the 294th day of the year. 71 days remain. It's week 42 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 60 and the normal low is 40. I've calculated the 31-year averages at 60 and 43.
On the warm side, in 1979 the high was 84 with the record warmest low of 70. Three years ago (2007) the high was 80 with a low of 60. That low of 60 was the first low in the 60s of the past 31 years. In 1986 the high was 77 with a low of 52. Last year (2009) the high was 69 with a low of 55. Another warm high was 72 in 1994. The record high of 87 was set in 1953. Over the last 31 years, 24 highs (77%) have been: 50s (14) and 60s (10). Four highs were in the warmer: 70s (2) and 80s (2). Three highs were in the cooler 40s.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was a cool 46 with a low of 30, a cool day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cold 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a warm low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a cold low of 27, a cool day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There were small spreads of five degrees in 1983 (56/51) and seven degrees in 1995 (43/36).
On the cool side, in 1987 the high was 42 with a low of 32. Another cold low was 27 in 1982, our only 20s low. Another cool high was 43 in 1995. The only other 40s high was 49 in 1997. The record low of 26 was set in 1952 and the record coolest high of 39 occurred back in 1913. 24 of the last 31 lows (77%) were: 30s (13) and 40s (11). One low was in the cooler 20s. Six lows were in the warmer: 50s (4), 60s (1) and 70s (1).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at 7:13. Sunset is at 18:02 and twilight ends at 18:31. There's a total of 10 hours, 49 minutes of daylight today and 11 hours, 46 minutes between twilights. We are losing two or three minutes of daylight a day. Tomorrow twilight begins at 6:46 and sunrise is at 7:14. The moon is waxing gibbous, heading towards the full Hunter's moon tomorrow night at 20:36. It's also known as the Travel or Dying Grass moon. Illumination was 97% at midnight, will be 98% at noon and 99% at midnight tonight. Moonset is at 5:53 this morning. Moonrise is at 17:03 this afternoon. Moonset is at 6:55 tomorrow morning. Moonlight time is 12 hours, 50 minutes which is 37 minutes longer than yesterday.
United Nation's Day is in three days. Halloween is in ten days. Election Day is in 12 days. Veteran's Day is in 21 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 60 and the normal low is 40. I've calculated the 31-year averages at 60 and 43.
On the warm side, in 1979 the high was 84 with the record warmest low of 70. Three years ago (2007) the high was 80 with a low of 60. That low of 60 was the first low in the 60s of the past 31 years. In 1986 the high was 77 with a low of 52. Last year (2009) the high was 69 with a low of 55. Another warm high was 72 in 1994. The record high of 87 was set in 1953. Over the last 31 years, 24 highs (77%) have been: 50s (14) and 60s (10). Four highs were in the warmer: 70s (2) and 80s (2). Three highs were in the cooler 40s.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was a cool 46 with a low of 30, a cool day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cold 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a warm low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a cold low of 27, a cool day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There were small spreads of five degrees in 1983 (56/51) and seven degrees in 1995 (43/36).
On the cool side, in 1987 the high was 42 with a low of 32. Another cold low was 27 in 1982, our only 20s low. Another cool high was 43 in 1995. The only other 40s high was 49 in 1997. The record low of 26 was set in 1952 and the record coolest high of 39 occurred back in 1913. 24 of the last 31 lows (77%) were: 30s (13) and 40s (11). One low was in the cooler 20s. Six lows were in the warmer: 50s (4), 60s (1) and 70s (1).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at 7:13. Sunset is at 18:02 and twilight ends at 18:31. There's a total of 10 hours, 49 minutes of daylight today and 11 hours, 46 minutes between twilights. We are losing two or three minutes of daylight a day. Tomorrow twilight begins at 6:46 and sunrise is at 7:14. The moon is waxing gibbous, heading towards the full Hunter's moon tomorrow night at 20:36. It's also known as the Travel or Dying Grass moon. Illumination was 97% at midnight, will be 98% at noon and 99% at midnight tonight. Moonset is at 5:53 this morning. Moonrise is at 17:03 this afternoon. Moonset is at 6:55 tomorrow morning. Moonlight time is 12 hours, 50 minutes which is 37 minutes longer than yesterday.
United Nation's Day is in three days. Halloween is in ten days. Election Day is in 12 days. Veteran's Day is in 21 days. -Bernie-
Thursday, October 22, 2009
October 21: ORD
Today is October 21st. It's the 294th day of the year. 71 days remain. It's week 42 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 60 and the normal low is 40. I've calculated the 30-year averages at 60 and 42.
On the warm side, in 1979 the high was 84 with the record warmest low of 70. Two years ago the high was 80 with a low of 60. In 1986 the high was 77 with a low of 25. Another warm high was 72 in 1994. The record high of 87 was set in 1953. Over the last 30 years, 23 highs have been: 50s (14) and 60s (9). Four highs were in the warmer: 70s (2) and 80s (2). Three highs were in the cooler 40s.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was 46 with a low of 30, a cool day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cool 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a low of 27, a cool day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There were small spreads of five degrees in 1983 (56/51) and seven degrees in 1995 (43/36).
On the cool side, in 1987 the high was 42 with a low of 32. Another cool low was 27 in 1982. Another cool high was 43 in 1995. The record low of 26 was set in 1952 and the record coolest high of 39 occurred back in 1913. 24 of the last 30 lows were: 30s (13) and 40s (11). One low was in the cooler 20s. Five lows were in the warmer: 50s (3), 60s (1) and 70s (1).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at 7:13. Sunset is at 18:02 and twilight ends at 18:30. Tomorrow twilight begins at 6:46 and sunrise is at 7:15. There's a total of 10 hours, 49 minutes of daylight today (two minutes less than yesterday) and 11 hours, 45 minutes between twilights. The moon is waxing crescent. Illumination was 10% at midnight, will be 13% at noon and 17% at midnight tonight. Moonrise is at 11:08. Moonset is at 19:59. Moonlight time is 8 hours, 51 minutes which is 16 minutes shorter than yesterday.
United Nations Day is in three days. Halloween is in ten 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 60 and the normal low is 40. I've calculated the 30-year averages at 60 and 42.
On the warm side, in 1979 the high was 84 with the record warmest low of 70. Two years ago the high was 80 with a low of 60. In 1986 the high was 77 with a low of 25. Another warm high was 72 in 1994. The record high of 87 was set in 1953. Over the last 30 years, 23 highs have been: 50s (14) and 60s (9). Four highs were in the warmer: 70s (2) and 80s (2). Three highs were in the cooler 40s.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1978 the high was 80 with a low of 53, a warm day. In 1977 the high was a warm 74 degrees. In 1976 the high was 46 with a low of 30, a cool day. In 1975 the high was a warm 73 degrees. In 1974 the low was a cool 27 degrees. In 1973 the high was 67 with a low of 37, a 30 degree spread. In 1971 the high was 73 with a low of 66, a seven degree spread and warm day. In 1968 the high was 69 with a low of 38, a 31 degree spread. In 1963 the high was 69 with a low of 59, a warm day. In 1961 the high was 49 with a low of 44, a five degree spread. In 1960 the high was 49 with a low of 27, a cool day.
More recently, there were large spreads of 32 degrees in 1991 (67/35), 32 degrees in 1999 (68/36) and 31 degrees in 1994 (72/41). There were small spreads of five degrees in 1983 (56/51) and seven degrees in 1995 (43/36).
On the cool side, in 1987 the high was 42 with a low of 32. Another cool low was 27 in 1982. Another cool high was 43 in 1995. The record low of 26 was set in 1952 and the record coolest high of 39 occurred back in 1913. 24 of the last 30 lows were: 30s (13) and 40s (11). One low was in the cooler 20s. Five lows were in the warmer: 50s (3), 60s (1) and 70s (1).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at 7:13. Sunset is at 18:02 and twilight ends at 18:30. Tomorrow twilight begins at 6:46 and sunrise is at 7:15. There's a total of 10 hours, 49 minutes of daylight today (two minutes less than yesterday) and 11 hours, 45 minutes between twilights. The moon is waxing crescent. Illumination was 10% at midnight, will be 13% at noon and 17% at midnight tonight. Moonrise is at 11:08. Moonset is at 19:59. Moonlight time is 8 hours, 51 minutes which is 16 minutes shorter than yesterday.
United Nations Day is in three days. Halloween is in ten days. -Bernie-
Tuesday, October 21, 2008
October 21: ORD
Today is October 21st. It's the 295th day of the year. 71 days remain. It's week 43 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. Observations have been official at O'Hare since Thursday, January 17, 1980.
According to the National Climatic Data Center (NCDC), the normal high is 60 and the normal low is 40. The 29-year averages are 60 and 43.
On the warm side, in 1979 the high was 84 with the record warmest low of 70. Last year the high was 80 with a low of 60. The low of 60 last year was the first low in the 60s since the low of 66 in 1971. In 1986 the high was 77 with a low of 52. Another warm high was 72 in 1994. Other warm lows were 51 in both 1983 and 2001. Pre-1979 warm days at O'Hare were in 1978 (80/53) and in 1971 (73/66). The record high of 87 was set in 1953. 22 of the 29 highs have been in the 50s (13) and 60s (9). Three 40s highs, two 70s highs and two 80s highs complete the tally of highs.
Large spreads were 32 degrees in both 1991 (67/35) and 1999 (68/36). In 1994 the spread was 31 degrees (72/41). One of the small spreads was 5 degrees in 1983 (56/51).
On the cool side, in 1987 the high was 42 with a low of 32. In 1995 the high was 43 with a low of 36 (a 7 degree spread). In 1982 the high was 52 with a low of 27. The record low of 26 occurred in 1952 and the record coolest high of 39 was set back in 1913. 23 of the 29 lows have been 30s (12) and 40s (11). Only three lows in the 50s; one each in the 20s, 60s and 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:45 and sunrise is at 7:14. Sunset is at 18:01 and twilight ends at 18:30. Twilight begins tomorrow at 6:46 and sunrise is at 7:15. There's a total of 10 hours, 47 minutes of daylight today and 11 hours, 45 minutes between twilights. The moon is waning and reaches last quarter this morning at 6:55. Illumination was 53% at midnight, will be 47% at noon and 42% at midnight tonight. Moonset is at 14:32 this afternoon. Moonrise is at 0:23 tomorrow morning. Moonlight time is 14 hours, 32 minutes today.
United Nations Day is in three days. My oldest sister, Mary Ann, will celebrate a birthday in five days. Halloween is in ten days. -Bernie-
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