Wednesday, September 26, 2012
September 26: ORD
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 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 71 and the normal low is 50. I've calculated the 33-year averages at 70 and 51.
On the warm side, in 1998 (O'Hare's warmest September 26th) the high was the record high of 90 (O'Hare's hottest high of the date and latest last 90s high of the past 33 years) with a low of 68 (O'Hare's third warmest low of the date and our most recent 60s low). In 1986 the high was 78 with a low of 69 (O'Hare's second warmest low of the date). In 1999 the high was 86 (O'Hare's second hottest high of the date and our most recent 80s high) with a low of 57. Our third warmest high was 85 degrees in 1987. The record warmest low of 71 degrees occurred in 1973 at Midway. 25 of the last 33 highs (76%) were in the: 60s (16) and 70s (9). For an ongoing 12 consecutive years, from 2000 through last year (2011), highs were in the 60s and 70s. O'Hare recorded 15 consecutive years of highs of at least 65 degrees from 1995 through 2009. Four highs (12%) were in the warm: 80s (3) and 90s (1). Four highs (12%) were in the cool 50s. The post-1978 50s highs occurred from 1980 through 1994 at the rate of about one every five years. O'Hare's second warmest September 26th was in 1973 as the high was 82 with a low of 71 (O'Hare's warmest low of the date). O'Hare also had warm highs of 83 degrees in 1963 and 1979.
In looking back through the years to the first September at O'Hare in 1959, the following instances were notable: in 1978 the high was 76 with a low of 46, a 30 degree spread. In 1974 the high was 82 with a low of 50, a 32 degree spread. In 1973 the high was 82 with a warm low of 71, a warm day and year of the record warmest low of 71 at Midway. In 1966 the low was a cold 36. In 1965 the high was a cool 53 with a low of 42, a cool day. In 1963 the high was a warm 83 with a low of 50, a 33 degree spread.
More recently, there were large spreads of 39 degrees in 1987 (85/46), 32 degrees in 1979 (83/51) and 31 degrees in 1995 (76/45). There were small spreads of seven degrees in 1994 (58/51) and seven degrees last year, in 2011 (60/53).
On the cool side, in 1984 (O'Hare's coolest September 26th) the high was 53 (with 1965, O'Hare's coolest high of the date) with the near-record low of 36 (with 1966, O'Hare's coldest low of the date). In 1991 the high was 60 with a low of 40 (O'Hare's second coldest low of the date). In 1980 the high was 58 with a low of 42. The other post-1978 cool highs were 58 degrees in 1989 and 1994. The highs of 58 degrees are O'Hare's second coolest highs of the date. The record low of 35 was set in 1928 at the University of Chicago. The record coolest high of 47 occurred in 1942 at Midway. 30 of the last 33 lows (91%) were in the: 40s (12) and 50s (18). There were two long consecutive stretches of lows in the 40s and 50s. The first was 11 years from 1987 through 1997. The second is an ongoing, 13 year stretch from 1999 through last year, 2011. One low was in the cold 30s. Two lows were in the warm 60s. O'Hare's second coolest September 26th was in 1965 as the high was 53 (with 1984, O'Hare's coolest high of the date) with a low of 42. O'Hare also had a cold low of 36 degrees in 1966 (as it was in 1984, these are O'Hare's coldest lows of the date).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:18 and sunrise is at 6:45. Sunset is at 18:43 and twilight ends at 19:11. There's a total of 11 hours, 58 minutes of daylight today and 12 hours, 53 minutes between twilights. We lost two minutes of daylight from yesterday. Tomorrow twilight begins at 6:19 and sunrise is at 6:47. The moon is waxing gibbous, heading towards the full Harvest moon in three days at 22:19. Illumination was 84% at midnight, will be 88% at noon and 91% at midnight tonight. Moonset was at 3:08 this morning. Moonrise is at 16:45 this afternoon. Moonset is at 4:14 tomorrow morning. Moonlight time is 10 hours, 23 minutes which is 35 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. Columbus Day is in 12 days. Standard Time doesn't return until November 4th.
Monday, September 26, 2011
September 26: ORD
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 71 and the normal low is 50. I've calculated the 32-year averages at 70 and 50.
On the warm side, in 1998 the high was the record high of 90 (our only 90s high & last of the year) with a low of 68. In 1986 the high was 78 with a low of 69. Those 60s lows were our only ones. In 1999 the high was 86 with a low of 57. Other warm highs were 85 in 1987 and 83 in 1979. The record warmest low of 71 occurred in 1973. 24 of the last 32 highs (75%) were in the: 60s (15) and 70s (9). For an ongoing 11 straight years, from 2000 through last year (2010), highs were in the 60s & 70s. Since the high was just 60 last year, this ended 15 straight years of highs of at least 65 degrees from 1995 through 2009. Four highs were in the warm: 80s (3) and 90s (1). Four highs were in the cool 50s.
In looking back through the years to the first September at O'Hare in 1959, the following instances were notable: in 1978 the high was 76 with a low of 46, a 30 degree spread. In 1974 the high was 82 with a low of 50, a 32 degree spread. In 1973 the high was 82 with a warm low of 71, a warm day and year of the record warmest low of 71 at Midway. In 1966 the low was a cold 36. In 1965 the high was a cool 53 with a low of 42, a cool day. In 1963 the high was a warm 83 with a low of 50, a 33 degree spread.
More recently, there were large spreads of 39 degrees in 1987 (85/46), 32 degrees in 1979 (83/51) and 31 degrees in 1995 (76/45). There was a small spread of seven degrees in 1994 (58/51).
On the cool side, in 1984 the high was 53 with the near-record low of 36 (the record low of 35 was set in 1928). In 1991 the high was 60 with a low of 40. In 1980 the high was 58 with a low of 42. The other cool highs were 58 degrees in 1989 and 1994. The record coolest high of 47 occurred in 1942. 29 of the last 32 lows (91%) were in the: 40s (12) and 50s (17). There were two long consecutive stretches of lows in the 40s & 50s. The first was 11 years from 1987 through 1997. The second is an ongoing, 12 year stretch from 1999 through last year, 2010. One low was in the cold 30s and two were in the warm 60s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:17 and sunrise is at 6:45. Sunset is at 18:44 and twilight ends at 19:12. There's a total of 11 hours, 59 minutes of daylight today and 12 hours, 55 minutes between twilights. We lost three minutes of daylight from yesterday. Tomorrow twilight begins at 6:18 and sunrise is at 6:46. The moon is waning crescent. Illumination was 2% at midnight, will be 1% at noon and 0% at midnight tonight. Moonrise is at 5:45 this morning. Moonset is at 17:58 this afternoon. Moonrise is at 7:02 tomorrow morning. Moonlight time is 12 hours, 13 minutes which is 45 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. Columbus Day is in 14 days.
Sunday, September 26, 2010
September 26: ORD
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 70 and the normal low is 50. I've calculated the 31-year averages at 70 and 50.
On the warm side, in 1998 the high was the record high of 90 with a low of 68. In 1986 the high was 78 with a low of 69. In 1999 the high was 86 with a low of 57. Other warm highs were 85 in 1987 and 83 in 1979. For 15 years running, there have been no highs failing to reach at least 65 degrees. The last time the high was below 65 was in 1994 when it was 58. The record warmest low of 71 was set in 1973. Over the last 31 years, 23 highs (74%) were: 60s (14) and 70s (9). Four highs were in the warmer: 80s (3) and 90s (1). Four highs were in the cooler 50s.
In looking back through the years to the first September at O'Hare in 1959, the following instances were notable: in 1978 the high was 76 with a low of 46, a 30 degree spread. In 1974 the high was a warm 82 with a low of 50, a 32 degree spread. In 1973 the high was 82 with a low of 71, a warm day and year of the record warmest low. In 1966 the low was a cold 36. In 1965 the high was a cool 53 with a low of 42, a cool day. In 1963 the high was a warm 83 with a low of 50, a 33 degree spread.
More recently, there were large spreads of 39 degrees in 1987 (85/46), 32 degrees in 1979 (83/51) and 31 degrees in 1995 (76/45). There was a small spread of seven degrees in 1994 (58/51).
On the cool side, in 1984 the high was 53 with the near-record low of 36 (the record low of 35 was set in 1928). The other cool highs were all 58 degrees in: 1980, 1989 and 1994. The record coolest high of 47 was set in 1942. 28 of the last 31 lows (90%) were: 40s (12) and 50s (16). One low was in the cooler 30s and two lows were in the warmer 60s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:17 and sunrise is at 6:45. Sunset is at 18:44 and twilight ends at 19:11. There's a total of 11 hours, 59 minutes of daylight today and 12 hours, 54 minutes between twilights. We are losing two or three minutes of daylight a day. Tomorrow twilight begins at 6:18 and sunrise is at 6:46. The moon is waning gibbous. Illumination was 92% at midnight, will be 90% at noon and 86% at midnight tonight. Moonset is at 10:06 this morning. Moonrise is at 19:58 tonight. Moonset is at 11:10 tomorrow morning. Moonlight time is 14 hours, 8 minutes which is 31 minutes longer than yesterday.
Columbus Day is in 15 days. -Bernie-
Monday, September 28, 2009
September 26: ORD
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 70 and the normal low is 50. I've calculated the 30-year averages at 70 and 50.
On the warm side, in 1998 the high was the record high of 90 with a low of 68. In 1986 the high was 78 with a low of 69. In 1999 the high was 86 with a low of 57. Other warm highs were 85 in 1987 and 83 in 1979. For 14 years running, there have been no highs failing to reach at least 65 degrees. The last time the high was below 65 was in 1994 when it was 58. The record warmest low of 71 was set in 1973. Over the last 30 years, 22 highs were: 60s (13) and 70s (9). Four highs were in the warmer: 80s (3) and 90s (1). Four highs were in the cooler 50s.
In looking back through the years to the first September at O'Hare in 1959, the following instances were notable: in 1978 the high was 76 with a low of 46, a 30 degree spread. In 1974 the high was 82 with a low of 50, a 32 degree spread. In 1973 the high was 82 with a low of 71, a warm day. In 1966 the low was a cold 36. In 1965 the high was 53 with a low of 42, a cool day. In 1963 the high was a warm 83 with a low of 50, a 33 degree spread.
More recently, there were large spreads of 39 degrees in 1987 (85/46), 32 degrees in 1979 (83/51) and 31 degrees in 1995 (76/45). There was a small spread of seven degrees in 1994 (58/51).
On the cool side, in 1984 the high was 53 with the near-record low of 36 (the record low of 35 was set in 1928). The other cool highs were all 58 degrees in: 1980, 1989 and 1994. The record coolest high of 47 was set in 1942. 27 of the last 30 lows were: 40s (12) and 50s (15). One low was in the cooler 30s. Two lows were in the warmer 60s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:17 and sunrise is at 6:45. Sunset is at 18:43 and twilight ends at 19:11. Tomorrow twilight begins at 6:18 and sunrise is at 6:46. There's a total of 11 hours, 58 minutes of daylight today (three minutes less than yesterday) and 12 hours, 54 minutes between twilights. The moon is waxing gibbous, having just reached first quarter last night at 23:50. Illumination was 51% at midnight, will be 55% at noon and 60% at midnight tonight. Moonrise is at 14:56. Moonset is at a minute past midnight tonight. Moonlight time is 9 hours, 4 minutes which is 15 minutes longer than yesterday.
Columbus Day is in 16 days. My parents will celebrate their 47th wedding anniversary in 17 days. National Boss Day is in 20 days. -Bernie-
Friday, September 26, 2008
September 26: ORD
Today is September 26th. It's the 270th day of the year. 96 days remain. It's week 39 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 70 and the normal low is 50. The 29-year averages are 70 and 50.
On the warm side, in 1998 the high was the record high of 90 with a low of 68. In 1986 the high was 78 with a low of 69. In 1999 the high was 86 with a low of 57. Other warm highs were 85 in 1987 and 83 in 1979. For 13 years running, there have been no highs failing to reach at least 65 degrees. The last time the high was below 65 was in 1994 when it was 58. The record warmest low of 71 was set in 1973. There have been 21 highs in the 60s (13) and 70s (8).
The largest spread of 39 degrees happened in 1987 as the high was 85 with a low of 46. Based upon the day before (in 1987), this must've been a warm front. On 9/25/87 the high and low were 69 and 44. There was a 32 degree spread in 1979 with a high of 83 and low of 51. The spread was 31 degrees in 1995 (76/45).
On the cool side, in 1984 the high was 53 with the near record low of 36 (the record is 35 set in 1928). In 1980 the high was 58 with a low of 42. In 1991 the high was 60 with a low of 40. Other cool highs were 58 degrees in 1989 and 1994. Other cool lows were 42 degrees in 1985 and 2000. The record coolest high of 47 was set in 1942. 26 of the last 29 lows have been 40s (12) and 50s (14).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:17 and sunrise is at 6:45. Sunset is at 18:43 and twilight ends at 19:11. Twilight begins tomorrow at 6:19 and sunrise is at 6:46. There's a total of 11 hours, 58 minutes of daylight today and 12 hours, 54 minutes between twilights. The moon is waning crescent. Illumination was 11% at midnight, will be 8% at noon and 5% at midnight tonight. Moonrise was at 3:45 this morning. Moonset is at 17:23 this afternoon and moonrise is at 4:55 tomorrow morning. Moonlight time is 13 hours, 38 minutes today. The autumnal equinox was four days ago at 10:44.
The following events are all 17 days away on October 13th: Columbus Day, my parents' 46th wedding anniversary and a brother-in-law, Buddy, will be turning 33. -Bernie-
