Today is April 5th. It's the 95th day of the year. 270 days remain. It's week 14 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 54 and the normal low is 34. I've calculated the 30-year averages at 54 and 33.
On the warm side, in 1988 the high was the record high of 85 with a low of 54, a 31 degree spread. Two years earlier, in 1986, the high was 76 with a low of 49. In 2005 the high was 76 with a low of 47. In 1997 the high was 67 with a low of 55. Six years prior, in 1991, the high was 76 with a low of 45, a 31 degree spread. The record warmest low of 69 was set in 1929. 22 of the last 30 highs were: 40s (8), 50s (8) and 60s (6). On the warmer side, four highs were: 70s (3) and 80s (1). On the colder side, four highs were in the 30s.
In looking back through the years to the first April at O'Hare in 1959, the following instances were notable: In 1976 the high was 62 with a low of 31, a 31 degree spread. In 1975 the high was 35 with a low of 18, one of our coldest April 5th days. In 1967 the high was 67 with a low of 49, a bonus 60s day. In 1963 the high was 62 with a low of 29, a 33 degree spread.
More recently, we had a small spreads of six degrees in 1983 (41/35) and in 1985 (39/33). There were large spreads of 31 degrees in 1995 (49/18), 36 degrees in 1979 (55/19) and 38 degrees in 2000 (63/25).
On the cold side, in 1982 the high was 31 with a low of 22. Two decades and a year later, in 2003, the high was 33 with a low of 25. In 1996 the high was 39 with a low of 25. In 2002 the high was 41 with a low of 24. Other cold lows were the record low of 18 in 1995 and a low of 19 in 1979. The low was also 18 in 1979 at Midway, so Midway shares the record low today with O'Hare. Other cold highs were 39 in 1985, 40 two years ago, 41 in 1983 and 42 in 1981. The record coldest high of 32 was set way back in 1898. 22 of the last 30 lows were: 20s (11) and 30s (11). Two lows were in the colder: 10s (a.k.a. teens)(2). Six lows were in the warmer: 40s (4) and 50s (2).
Both 1979 and 1995 were very cold days today. In 1979, area lows were: Rockford: 17, Aurora: 17, Barrington: 9, University of Chicago: 18, DeKalb (NIU): 18, Elgin: 11, Marengo: 8, Joliet: 18, Wheaton: 16, Midway: 18 and O'Hare: 19. In 1995, Rockford: 15, Aurora: 19, Chicago Botanical Gardens: 16, Midway: 23, DeKalb(NIU): 17, Elgin: 16, Lake Villa: 16, Marengo: 15, O'Hare: 18 and Streamwood: 12.
Today is a major day in Chicago's snow history. In 1982, O'Hare had 9.4 inches of snow. This was 89% of it's total of 10.6 inches for the month. Midway had 9.8 inches and Rockford had 6.3 inches. So much for Spring on this day in 1982! In 1938, the city had a tenth of an inch.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:00 and sunrise is at 6:29. Sunset is at 19:24 and twilight ends at 19:52. Tomorrow twilight begins at 5:59 and sunrise is at 6:27. There's a total of 12 hours, 55 minutes of daylight today and 13 hours, 52 minutes between twilights. The moon is waxing gibbous and reached first quarter three days ago at 9:34. Illumination was 78% at midnight, will be 83% at noon and 87% at midnight tonight. Moonset was at 4:21. Moonrise is at 15:19 today and moonset is at 4:47 tomorrow. Moonlight time is 13 hours, 2 minutes which is 45 minutes shorter than yesterday.
Palm Sunday is today. Good Friday is in five days. Steve, one of my brother-in-laws, celebrates a birthday in six days. Easter is in a week. One of my nieces, Sara, celebrates a birthday 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 54 and the normal low is 34. I've calculated the 30-year averages at 54 and 33.
On the warm side, in 1988 the high was the record high of 85 with a low of 54, a 31 degree spread. Two years earlier, in 1986, the high was 76 with a low of 49. In 2005 the high was 76 with a low of 47. In 1997 the high was 67 with a low of 55. Six years prior, in 1991, the high was 76 with a low of 45, a 31 degree spread. The record warmest low of 69 was set in 1929. 22 of the last 30 highs were: 40s (8), 50s (8) and 60s (6). On the warmer side, four highs were: 70s (3) and 80s (1). On the colder side, four highs were in the 30s.
In looking back through the years to the first April at O'Hare in 1959, the following instances were notable: In 1976 the high was 62 with a low of 31, a 31 degree spread. In 1975 the high was 35 with a low of 18, one of our coldest April 5th days. In 1967 the high was 67 with a low of 49, a bonus 60s day. In 1963 the high was 62 with a low of 29, a 33 degree spread.
More recently, we had a small spreads of six degrees in 1983 (41/35) and in 1985 (39/33). There were large spreads of 31 degrees in 1995 (49/18), 36 degrees in 1979 (55/19) and 38 degrees in 2000 (63/25).
On the cold side, in 1982 the high was 31 with a low of 22. Two decades and a year later, in 2003, the high was 33 with a low of 25. In 1996 the high was 39 with a low of 25. In 2002 the high was 41 with a low of 24. Other cold lows were the record low of 18 in 1995 and a low of 19 in 1979. The low was also 18 in 1979 at Midway, so Midway shares the record low today with O'Hare. Other cold highs were 39 in 1985, 40 two years ago, 41 in 1983 and 42 in 1981. The record coldest high of 32 was set way back in 1898. 22 of the last 30 lows were: 20s (11) and 30s (11). Two lows were in the colder: 10s (a.k.a. teens)(2). Six lows were in the warmer: 40s (4) and 50s (2).
Both 1979 and 1995 were very cold days today. In 1979, area lows were: Rockford: 17, Aurora: 17, Barrington: 9, University of Chicago: 18, DeKalb (NIU): 18, Elgin: 11, Marengo: 8, Joliet: 18, Wheaton: 16, Midway: 18 and O'Hare: 19. In 1995, Rockford: 15, Aurora: 19, Chicago Botanical Gardens: 16, Midway: 23, DeKalb(NIU): 17, Elgin: 16, Lake Villa: 16, Marengo: 15, O'Hare: 18 and Streamwood: 12.
Today is a major day in Chicago's snow history. In 1982, O'Hare had 9.4 inches of snow. This was 89% of it's total of 10.6 inches for the month. Midway had 9.8 inches and Rockford had 6.3 inches. So much for Spring on this day in 1982! In 1938, the city had a tenth of an inch.
The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 6:00 and sunrise is at 6:29. Sunset is at 19:24 and twilight ends at 19:52. Tomorrow twilight begins at 5:59 and sunrise is at 6:27. There's a total of 12 hours, 55 minutes of daylight today and 13 hours, 52 minutes between twilights. The moon is waxing gibbous and reached first quarter three days ago at 9:34. Illumination was 78% at midnight, will be 83% at noon and 87% at midnight tonight. Moonset was at 4:21. Moonrise is at 15:19 today and moonset is at 4:47 tomorrow. Moonlight time is 13 hours, 2 minutes which is 45 minutes shorter than yesterday.
Palm Sunday is today. Good Friday is in five days. Steve, one of my brother-in-laws, celebrates a birthday in six days. Easter is in a week. One of my nieces, Sara, celebrates a birthday in 11 days. -Bernie-
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