Today is September 29th. It's the 272nd day of the year. 93 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. 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 49. I've calculated the 30-year averages at 70 and 49.
On the warm side, in 1982 the high was 83 with a low of 63. In 2002 the high was 84 with a low of 60. In 1979 the high was 85 with a low of 58. In 1986 the high was 77 with a low of 64. Another warm high was 81 in 1983. The record high of 99 was set in 1953 and the record warmest low of 69 occurred in 1904, a time when the official readings were taken adjacent to Lake Michigan. Over the last 30 years, 26 highs were: 60s (11), 70s (9) and 80s (6). 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 1971 the high was 80 with a low of 65, a warm day. In 1970 the high was 72 with a low of 39, a 33 degree spread. In 1967 the high was 47 with a low of 41, a six degree spread. In 1964 the high was 67 with a low of 32, a 35 degree spread. In 1962 the high was 66 with a cool low of 36, a 30 degree spread. In 1961 the high was 66 with a cool low of 32, a 34 degree spread. The lows of 32 in 1964 and 1961 are equal to the record.
More recently, there were large spreads of 31 degrees in 1983 (81/50) and 30 degrees two years ago (80/50). There were no small spreads of up to seven degrees.
On the cool side, in 1984 the high was 55 with the record low of 32. In 1993 the high was 54 with a low of 37. Other cool lows were 36 in 1992 and 37 three years ago. The record coolest high of 44 was set way back in 1899, a time when the official readings were taken adjacent to Lake Michigan. 22 of the last 30 lows were: 40s (9) and 50s (13). Five lows were in the cooler 30s and three were in the warmer 60s. Today is also the runner-up date of the earliest first freeze which occurred in 1984. The earliest first freeze was on September 22, 1995.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:20 and sunrise is at 6:48. Sunset is at 18:38 and twilight ends at 19:06. Tomorrow twilight begins at 6:22 and sunrise is at 6:50. There's a total of 11 hours, 50 minutes of daylight today (three minutes less than yesterday) and 12 hours, 46 minutes between twilights. The moon is waxing gibbous. Illumination was 77% at midnight, will be 81% at noon and 85% at midnight tonight. Moonset was at 2:05. Moonrise is at 16:27. Moonset is at 3:07 tomorrow morning. Moonlight time is 9 hours, 38 minutes which is 38 minutes longer than yesterday.
Columbus Day is in 13 days. My parents will celebrate their 47th wedding anniversary in two weeks. A brother-in-law, Buddy, celebrates a birthday in two weeks. National Boss Day is in 17 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 49. I've calculated the 30-year averages at 70 and 49.
On the warm side, in 1982 the high was 83 with a low of 63. In 2002 the high was 84 with a low of 60. In 1979 the high was 85 with a low of 58. In 1986 the high was 77 with a low of 64. Another warm high was 81 in 1983. The record high of 99 was set in 1953 and the record warmest low of 69 occurred in 1904, a time when the official readings were taken adjacent to Lake Michigan. Over the last 30 years, 26 highs were: 60s (11), 70s (9) and 80s (6). 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 1971 the high was 80 with a low of 65, a warm day. In 1970 the high was 72 with a low of 39, a 33 degree spread. In 1967 the high was 47 with a low of 41, a six degree spread. In 1964 the high was 67 with a low of 32, a 35 degree spread. In 1962 the high was 66 with a cool low of 36, a 30 degree spread. In 1961 the high was 66 with a cool low of 32, a 34 degree spread. The lows of 32 in 1964 and 1961 are equal to the record.
More recently, there were large spreads of 31 degrees in 1983 (81/50) and 30 degrees two years ago (80/50). There were no small spreads of up to seven degrees.
On the cool side, in 1984 the high was 55 with the record low of 32. In 1993 the high was 54 with a low of 37. Other cool lows were 36 in 1992 and 37 three years ago. The record coolest high of 44 was set way back in 1899, a time when the official readings were taken adjacent to Lake Michigan. 22 of the last 30 lows were: 40s (9) and 50s (13). Five lows were in the cooler 30s and three were in the warmer 60s. Today is also the runner-up date of the earliest first freeze which occurred in 1984. The earliest first freeze was on September 22, 1995.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:20 and sunrise is at 6:48. Sunset is at 18:38 and twilight ends at 19:06. Tomorrow twilight begins at 6:22 and sunrise is at 6:50. There's a total of 11 hours, 50 minutes of daylight today (three minutes less than yesterday) and 12 hours, 46 minutes between twilights. The moon is waxing gibbous. Illumination was 77% at midnight, will be 81% at noon and 85% at midnight tonight. Moonset was at 2:05. Moonrise is at 16:27. Moonset is at 3:07 tomorrow morning. Moonlight time is 9 hours, 38 minutes which is 38 minutes longer than yesterday.
Columbus Day is in 13 days. My parents will celebrate their 47th wedding anniversary in two weeks. A brother-in-law, Buddy, celebrates a birthday in two weeks. National Boss Day is in 17 days. -Bernie-
No comments:
Post a Comment