Today is October 1st. It's the 274th day of the year. 91 days remain. It's week 40 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 69 and the normal low is 48. I've calculated the 30-year averages at 71 and 47.
On the warm side, in 2002 the high was 82 with a low of 67. In 2000 the high was 83 with a low of 61. Another warm high is 81 in 1983. In 1971 the record high of 92 and record warmest low of 71 were established. Over the last 30 years, 24 highs were: 60s (9) and 70s (15). Four highs were in the warmer 80s. Two of these happened between 1980 and 1983 and two of them occurred between 2000 and 2002. There were two highs in the cooler 50s. These happened far apart, one in 1985 and the other in 2003.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1977 the high was 60 with a low of 55, a five degree spread. In 1976 the high was a warm 82 with a low of 46, a 36 degree spread. In 1974 the high was 52 with a low of 33, a cool day. 1974 was the year of the record low of 32, set at Midway. In 1971 the high was 90 with a low of 71, a hot day. 1971 was the year of the record high of 92 and record warmest low of 71, both set at Midway. In 1969 the high was 85 with a low of 58, a hot day. In 1968 the high was 80 with a low of 61, a warm day. In 1967 the high was 77 with a low of 42, a 35 degree spread. In 1966 the low was a cool 34 degrees. In 1963 the high was a warm 82 with a low of 51, a 31 degree spread. In 1961 the high was 51 with a low of 34, a cool day. 1961 was the year of the record coolest high of 49, set at Midway.
More recently, there were large spreads of 38 degrees in 1981 (76/38), 36 degrees in 1987 (73/37), 35 degrees in 1983 (81/46), 34 degrees in 1979 (77/43), 33 degrees in 1992 (74/41), 32 degrees in 1984 (65/33) and 30 degrees in 2006 (74/44). There was a small spread of four degrees in 1986 (61/57).
On the cool side, in 2003 the high was 53 with a low of 34. In 1985 the high was 55 with a low of 34. An interesting fact was that highs in the back to back to back years of 1997, 1998 and 1999 were 60, some of the coolest highs of October 1st. Another cool low was 33 in 1984. We had a 15 year reprieve from lows in the 30s from 1988 to 2002. The record low of 32 was set in 1974 and the record coolest high of 49 was set in 1961. 23 of the last 30 lows were: 40s (14) and 50s (9). Five lows were in the cooler 30s. Four of these five occurred between 1981 and 1987 with a lone one in 2003. Two lows were in the warmer 60s, just two years apart (2000 and 2002).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:23 and sunrise is at 6:51. Sunset is at 18:34 and twilight ends at 19:02. Tomorrow twilight begins at 6:24 and sunrise is at 6:52. There's a total of 11 hours, 43 minutes of daylight today (three minutes less than yesterday) and 12 hours, 39 minutes between twilights. The moon is waxing gibbous, heading towards the full Harvest moon in three days. Illumination was 91% at midnight, will be 94% at noon and 96% at midnight tonight. Moonset was at 4:09. Moonrise is at 17:12. Moonset is at 5:12 tomorrow morning. Moonlight time is 10 hours, 57 minutes which is 40 minutes longer than yesterday.
Columbus Day is in 11 days. My parents will celebrate their 47th wedding anniversary in 12 days. A brother-in-law, Buddy, celebrates a birthday in 12 days. National Boss Day is in 15 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 69 and the normal low is 48. I've calculated the 30-year averages at 71 and 47.
On the warm side, in 2002 the high was 82 with a low of 67. In 2000 the high was 83 with a low of 61. Another warm high is 81 in 1983. In 1971 the record high of 92 and record warmest low of 71 were established. Over the last 30 years, 24 highs were: 60s (9) and 70s (15). Four highs were in the warmer 80s. Two of these happened between 1980 and 1983 and two of them occurred between 2000 and 2002. There were two highs in the cooler 50s. These happened far apart, one in 1985 and the other in 2003.
In looking back through the years to the first October at O'Hare in 1959, the following instances were notable: in 1977 the high was 60 with a low of 55, a five degree spread. In 1976 the high was a warm 82 with a low of 46, a 36 degree spread. In 1974 the high was 52 with a low of 33, a cool day. 1974 was the year of the record low of 32, set at Midway. In 1971 the high was 90 with a low of 71, a hot day. 1971 was the year of the record high of 92 and record warmest low of 71, both set at Midway. In 1969 the high was 85 with a low of 58, a hot day. In 1968 the high was 80 with a low of 61, a warm day. In 1967 the high was 77 with a low of 42, a 35 degree spread. In 1966 the low was a cool 34 degrees. In 1963 the high was a warm 82 with a low of 51, a 31 degree spread. In 1961 the high was 51 with a low of 34, a cool day. 1961 was the year of the record coolest high of 49, set at Midway.
More recently, there were large spreads of 38 degrees in 1981 (76/38), 36 degrees in 1987 (73/37), 35 degrees in 1983 (81/46), 34 degrees in 1979 (77/43), 33 degrees in 1992 (74/41), 32 degrees in 1984 (65/33) and 30 degrees in 2006 (74/44). There was a small spread of four degrees in 1986 (61/57).
On the cool side, in 2003 the high was 53 with a low of 34. In 1985 the high was 55 with a low of 34. An interesting fact was that highs in the back to back to back years of 1997, 1998 and 1999 were 60, some of the coolest highs of October 1st. Another cool low was 33 in 1984. We had a 15 year reprieve from lows in the 30s from 1988 to 2002. The record low of 32 was set in 1974 and the record coolest high of 49 was set in 1961. 23 of the last 30 lows were: 40s (14) and 50s (9). Five lows were in the cooler 30s. Four of these five occurred between 1981 and 1987 with a lone one in 2003. Two lows were in the warmer 60s, just two years apart (2000 and 2002).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:23 and sunrise is at 6:51. Sunset is at 18:34 and twilight ends at 19:02. Tomorrow twilight begins at 6:24 and sunrise is at 6:52. There's a total of 11 hours, 43 minutes of daylight today (three minutes less than yesterday) and 12 hours, 39 minutes between twilights. The moon is waxing gibbous, heading towards the full Harvest moon in three days. Illumination was 91% at midnight, will be 94% at noon and 96% at midnight tonight. Moonset was at 4:09. Moonrise is at 17:12. Moonset is at 5:12 tomorrow morning. Moonlight time is 10 hours, 57 minutes which is 40 minutes longer than yesterday.
Columbus Day is in 11 days. My parents will celebrate their 47th wedding anniversary in 12 days. A brother-in-law, Buddy, celebrates a birthday in 12 days. National Boss Day is in 15 days. -Bernie-
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