Today is August 11th. It's the 223rd day of the year. 142 days remain. It's week 32 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 79 and 62.
On the hot side, there were no days of a mean of at least 11.5 degrees above normal. The warmest highs were in the 90s. It was 93 in both 1995 and 2002. It was 92 in 1988. The record high of 98 was set in 1941. The warmest lows were 72 in both 1988 and 1995. The record warmest low of 77 occurred in 1944. Over the last 30 years, 25 highs were: 70s (15) and 80s (10). Three highs were in the warmer 90s. Two highs were 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 1975 the high was 90. In 1967 the high was 70 with a low of 47, a cool day. That low of 47 is equal to the current record low. In 1965 the high was 79 with a low of 45, a 34 degree spread (or diurnal). That low of 45 is below the current record low.
More recently, there was a large spread of 30 degrees in 1982 (77/47). The small spreads were six degrees in 1997 (70/64) and seven degrees in 1994 (67/60).
On the cool side, in 2004 the high was our record coolest high of 62 with a low of 53. In 1982 the low was 47, the record low. Other cool highs were 67 in 1994, 70 in 1997 and 71 in 1979. The previous record coolest high of 65 was set back in 1903. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 19 lows were in the 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Two lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight is at 5:26 and sunrise is at 5:57. Sunset is at 19:59 and twilight ends at 20:30. Tomorrow twilight begins at 5:27 and sunrise is at 5:58. There's a total of 14 hours, 2 minutes of daylight today and 15 hours, 4 minutes between twilights. The moon is waning gibbous. Illumination was 76% at midnight, will be 71% at noon and 66% at midnight tonight. Moonset is at 11:42 this morning. Moonrise is at 22:11 tonight. Moonset is at 12:51 tomorrow afternoon. Moonlight time is 13 hours, 31 minutes which is 40 minutes longer than yesterday.
My tennis coach, Bob Finder, will be 77 in eight days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in nine 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 82 and the normal low is 63. I've calculated the 30-year averages at 79 and 62.
On the hot side, there were no days of a mean of at least 11.5 degrees above normal. The warmest highs were in the 90s. It was 93 in both 1995 and 2002. It was 92 in 1988. The record high of 98 was set in 1941. The warmest lows were 72 in both 1988 and 1995. The record warmest low of 77 occurred in 1944. Over the last 30 years, 25 highs were: 70s (15) and 80s (10). Three highs were in the warmer 90s. Two highs were 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 1975 the high was 90. In 1967 the high was 70 with a low of 47, a cool day. That low of 47 is equal to the current record low. In 1965 the high was 79 with a low of 45, a 34 degree spread (or diurnal). That low of 45 is below the current record low.
More recently, there was a large spread of 30 degrees in 1982 (77/47). The small spreads were six degrees in 1997 (70/64) and seven degrees in 1994 (67/60).
On the cool side, in 2004 the high was our record coolest high of 62 with a low of 53. In 1982 the low was 47, the record low. Other cool highs were 67 in 1994, 70 in 1997 and 71 in 1979. The previous record coolest high of 65 was set back in 1903. The official thermometer was located near Lake Michigan at the time. Over the last 30 years, 19 lows were in the 60s. Nine lows were in the cooler: 40s (1) and 50s (8). Two lows were in the warmer 70s.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight is at 5:26 and sunrise is at 5:57. Sunset is at 19:59 and twilight ends at 20:30. Tomorrow twilight begins at 5:27 and sunrise is at 5:58. There's a total of 14 hours, 2 minutes of daylight today and 15 hours, 4 minutes between twilights. The moon is waning gibbous. Illumination was 76% at midnight, will be 71% at noon and 66% at midnight tonight. Moonset is at 11:42 this morning. Moonrise is at 22:11 tonight. Moonset is at 12:51 tomorrow afternoon. Moonlight time is 13 hours, 31 minutes which is 40 minutes longer than yesterday.
My tennis coach, Bob Finder, will be 77 in eight days. Steve Campbell and Christina, a sister of mine, celebrate their seventh anniversary in nine days. -Bernie-
No comments:
Post a Comment