Today is August 13th. It's the 225th day of the year. 140 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 81 and 63.
On the hot side, in 1995 the high was 96 with the co-record warmest low of 77. In 1988 the high was 91 with the co-record warmest low of 77. There were only two other 70s lows: 70 in both 1985 and 1994. The record high of 98 was set in 1944. Over the last 30 years, 17 highs were in the 80s. Ten highs were in the 70s. Two highs were in the warmer 90s and one high was in the cooler 60s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1971 the high was 91. In 1967 the high was 77 with a low of 42, a 35 degree spread and cool day. That low of 42 was cooler than the record low. In 1964 the high was 70 with a low of 45, a cool day. That low of 45 was also cooler than the record low. In 1961 the high was 81 with a low of 48, a 33 degree spread. That low of 48 was also cooler than the record low. In 1959 the high was 91.
More recently, there was a small spread of seven degrees in 2005 (75/68).
On the cool side, there were no means of at least 11.5 degrees below normal. The co-record lows were 51 degrees in 1982 and 2004. Our coolest high was the only high in the 60s, a 69 degree high in 1992. The coolest 70s high was 71 in 2004. The record coolest high of 64 was set way back in 1883. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 16 lows were 60s. Ten lows were in the cooler 50s. Four lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight is at 5:28 and sunrise is at 5:59. Sunset is at 19:57 and twilight ends at 20:27. Tomorrow twilight begins at 5:30 and sunrise is at 6:00. There's a total of 13 hours, 58 minutes of daylight today and 14 hours, 59 minutes between twilights. The moon reaches last quarter today at 13:55. Illumination was 56% at midnight, will be 51% at noon and 45% at midnight tonight. Moonset is at 14:02 this afternoon. Moonrise is at 23:20 tonight. Moonset is at 15:13 tomorrow afternoon. Moonlight time is 14 hours, 42 minutes which is 33 minutes longer than yesterday.
My tennis coach, Bob Finder, will be 77 in six days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in a week. -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 81 and 63.
On the hot side, in 1995 the high was 96 with the co-record warmest low of 77. In 1988 the high was 91 with the co-record warmest low of 77. There were only two other 70s lows: 70 in both 1985 and 1994. The record high of 98 was set in 1944. Over the last 30 years, 17 highs were in the 80s. Ten highs were in the 70s. Two highs were in the warmer 90s and one high was in the cooler 60s.
In looking back through the years to the first August at O'Hare in 1959, the following instances were notable: In 1971 the high was 91. In 1967 the high was 77 with a low of 42, a 35 degree spread and cool day. That low of 42 was cooler than the record low. In 1964 the high was 70 with a low of 45, a cool day. That low of 45 was also cooler than the record low. In 1961 the high was 81 with a low of 48, a 33 degree spread. That low of 48 was also cooler than the record low. In 1959 the high was 91.
More recently, there was a small spread of seven degrees in 2005 (75/68).
On the cool side, there were no means of at least 11.5 degrees below normal. The co-record lows were 51 degrees in 1982 and 2004. Our coolest high was the only high in the 60s, a 69 degree high in 1992. The coolest 70s high was 71 in 2004. The record coolest high of 64 was set way back in 1883. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 16 lows were 60s. Ten lows were in the cooler 50s. Four lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight is at 5:28 and sunrise is at 5:59. Sunset is at 19:57 and twilight ends at 20:27. Tomorrow twilight begins at 5:30 and sunrise is at 6:00. There's a total of 13 hours, 58 minutes of daylight today and 14 hours, 59 minutes between twilights. The moon reaches last quarter today at 13:55. Illumination was 56% at midnight, will be 51% at noon and 45% at midnight tonight. Moonset is at 14:02 this afternoon. Moonrise is at 23:20 tonight. Moonset is at 15:13 tomorrow afternoon. Moonlight time is 14 hours, 42 minutes which is 33 minutes longer than yesterday.
My tennis coach, Bob Finder, will be 77 in six days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in a week. -Bernie-
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