Today is December 4th. It's the 338th day of the year. 27 days remain. It's week 49 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 38 and the normal low is 24. I've calculated the 31-year averages at 38 and 25.
On the warm side, in 1998 the high was the record high of 66 with the record warmest low of 56. In 2001 the high was 62 with a low of 54. In 1999 the high was 54 with a low of 44. In 1994 the high was 56 with a low of 39. In 1982 the high was 47 with a low of 38. Over the last 31 years, 20 highs were in the: 30s (12) and 40s (8). Four highs were in the warmer: 50s (2) and 60s (2). Seven highs were in the cooler: 10s (1) and 20s (6).
In looking back through the years to the first December at O'Hare in 1958, the following instances were notable: in 1977 the low was a cold 12 degrees. In 1976 the high was 21 with a low of 6, a cold day. In 1975 the high was a warm 53 degrees. In 1973 the high was 58 with a low of 42, a warm day. In 1971 the high was 41 with a low of 34, a seven degree spread. In 1968 the high was 41 with a low of 35, a six degree spread. In 1965 the high was 38 with a low of 32, a six degree spread. In 1963 the low was a cold 10 degrees. In 1962 the high was a warm 52 with a low of 35, a warm day. In 1961 the high was a warm 62 with a low of 31, a warm day. In 1960 the high was 58 with a low of 45, a warm day. In 1959 the high was 49 with a warm low of 37, a warm day.
More recently, there were no large spreads. There were small spreads of five degrees in 1983 (37/32), five degrees in 2003 (39/34) and six degrees in 1997 (35/29).
On the cold side, in 1991 the high was the record coldest high of 13 with a low of 3. Twenty-five years later, in 2006, the high was 26 with a low of 6. Last year the high was 22 with a low of 12. In 1984 the high was 24 with a low of 12. In 2002 the high was 28 with a low of 10. Other cold lows were 8 in 1978 and 12 in 2005. The record low of -1 was set way back in 1893. 20 of the last 31 lows were: 10s (8) and 20s (12). Three lows were in the cooler 0s. Eight lows were in the warmer: 30s (5), 40s (1) and 50s (2).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:34 and sunrise is at 7:06. Sunset is at 16:21 and twilight ends at 16:53. Tomorrow twilight begins at 6:35 and sunrise is at 7:07. There's a total of 9 hours, 15 minutes of daylight today and 10 hours, 19 minutes between twilights. The moon reached the full Cold moon two days ago at 1:30 and is waning gibbous today. Illumination was 95% at midnight, will be 92% at noon and 88% at midnight tonight. Moonset was at 9:33. Moonrise is at 19:00. Moonset is at 10:15 tomorrow. Moonlight time is 14 hours, 33 minutes which is 24 minutes shorter than yesterday.
Pearl Harbor Remembrance Day is in three days. My youngest sister, Regina, celebrates a birthday in ten days. Bill of Rights Day is in 11 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 38 and the normal low is 24. I've calculated the 31-year averages at 38 and 25.
On the warm side, in 1998 the high was the record high of 66 with the record warmest low of 56. In 2001 the high was 62 with a low of 54. In 1999 the high was 54 with a low of 44. In 1994 the high was 56 with a low of 39. In 1982 the high was 47 with a low of 38. Over the last 31 years, 20 highs were in the: 30s (12) and 40s (8). Four highs were in the warmer: 50s (2) and 60s (2). Seven highs were in the cooler: 10s (1) and 20s (6).
In looking back through the years to the first December at O'Hare in 1958, the following instances were notable: in 1977 the low was a cold 12 degrees. In 1976 the high was 21 with a low of 6, a cold day. In 1975 the high was a warm 53 degrees. In 1973 the high was 58 with a low of 42, a warm day. In 1971 the high was 41 with a low of 34, a seven degree spread. In 1968 the high was 41 with a low of 35, a six degree spread. In 1965 the high was 38 with a low of 32, a six degree spread. In 1963 the low was a cold 10 degrees. In 1962 the high was a warm 52 with a low of 35, a warm day. In 1961 the high was a warm 62 with a low of 31, a warm day. In 1960 the high was 58 with a low of 45, a warm day. In 1959 the high was 49 with a warm low of 37, a warm day.
More recently, there were no large spreads. There were small spreads of five degrees in 1983 (37/32), five degrees in 2003 (39/34) and six degrees in 1997 (35/29).
On the cold side, in 1991 the high was the record coldest high of 13 with a low of 3. Twenty-five years later, in 2006, the high was 26 with a low of 6. Last year the high was 22 with a low of 12. In 1984 the high was 24 with a low of 12. In 2002 the high was 28 with a low of 10. Other cold lows were 8 in 1978 and 12 in 2005. The record low of -1 was set way back in 1893. 20 of the last 31 lows were: 10s (8) and 20s (12). Three lows were in the cooler 0s. Eight lows were in the warmer: 30s (5), 40s (1) and 50s (2).
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:34 and sunrise is at 7:06. Sunset is at 16:21 and twilight ends at 16:53. Tomorrow twilight begins at 6:35 and sunrise is at 7:07. There's a total of 9 hours, 15 minutes of daylight today and 10 hours, 19 minutes between twilights. The moon reached the full Cold moon two days ago at 1:30 and is waning gibbous today. Illumination was 95% at midnight, will be 92% at noon and 88% at midnight tonight. Moonset was at 9:33. Moonrise is at 19:00. Moonset is at 10:15 tomorrow. Moonlight time is 14 hours, 33 minutes which is 24 minutes shorter than yesterday.
Pearl Harbor Remembrance Day is in three days. My youngest sister, Regina, celebrates a birthday in ten days. Bill of Rights Day is in 11 days. -Bernie-
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