Showing posts with label May 31. Show all posts
Showing posts with label May 31. Show all posts

Thursday, May 31, 2012

May 31: ORD

Today is May 31st. It's the 152nd day of the year. 214 days remain. It's week 22 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. Before this, the official site of record was on the south side of Chicago at Midway International Airport (MDW), beginning on Wednesday, July 1, 1942. From Friday, January 1, 1926 through Tuesday, June 30, 1942, the official site was at the University of Chicago. Before that, the official site was at various locations in Chicago going back to Monday, October 16, 1871. Observations taken from October 15, 1870 to October 8, 1871 were lost in the Great Chicago Fire.

According to the National Climatic Data Center (NCDC), the normal high is 75 and the normal low is 53. I've calculated the 33-year averages at 77 and 55.


On the hot side, in 1991 (O'Hare's warmest May 31st) the high was 89 with a low of 67. Last year, in 2011 (O'Hare's second warmest May 31st), the high was 85 with a low of 69 (O'Hare's warmest low of the date). In 1988 the high was 92 (O'Hare's only 90s high and thus warmest high of May 31st) with a low of 61, a 31 degree spread. In 2002 the high was 86 with a low of 67. In 1987 the high was 88 with a low of 64. Two years later, in 1989, the high was 84 with a low of 67. The other hot high was 87 in 1986. The other warm lows were 66 two years ago, in 2010 and 65 in both 2006 and 2007. The record high of 98 was set back in 1934 at the University of Chicago. The record warmest low of 72 occurred back in 1919, at a time when the official readings were taken adjacent to Lake Michigan.
26 of the past 33 highs (79%) were in the: 70s (15) and 80s (11). O'Hare recorded seven consecutive 70s & 80s highs from 2005 through last year, 2011. One high (3%) was in the hot 90s. Six highs (18%) were in the cool: 50s (2) and 60s (4).

In looking back through the years to the first May at O'Hare in 1959, the following instances were notable: In 1978 the high was a hot 88 with a low of 56, a 32 degree spread. In 1972 the high was a cool 63 degrees. In 1970 the low was a warm 70 degrees. In 1969 the high was 85 with a low of 53, a 32 degree spread. In 1966 the high was 66 with a cold low of 37, a cool day. In 1965 the high was 80 with a low of 44, a 36 degree spread. In 1963 the high was 80 with a low of 46, a 34 degree spread. In 1961 the high was 85 with a low of 53, a 32 degree spread.

More recently, there were additional large spreads of 36 degrees in 1990 (76/40), 33 degrees in 1992 (77/44), 33 degrees in 1996 (74/41), 31 degrees in 1981 (72/41) and 30 degrees in 1995 (84/54).

 
On the cool side, in 2003 (O'Hare's coolest May 31st) the high was 58 (O'Hare's coolest high of the date) with a low of 38. A decade earlier, in 1993, the high was 65 with a low of 39. The other cool lows were 40 in 1990, 41 in 1981 and 41 in 1996. The other cool highs were 59 in 1983 and 62 in 2001. Both records were set way back in the 19th century, at a time when the official readings were taken adjacent to Lake Michigan. The record low of 35 was set way back in 1873. The record coolest high of 43 occurred way back in 1889. 31 of the last 33 lows (94%) were in the: 40s (9), 50s (9) and 60s (13). Two lows (from 1979-2011) were in the cold 30s. O'Hare's third and only other 30s low was 37 in 1966 (O'Hare's coldest low of the date). The 50s highs (58 in 2003 and 59 in 1983) were O'Hare's only 50s highs for the date in its history. However, today's high (in 2012) is predicted to be in the 50s and may become O'Hare's coolest high ever for the date!

There was an instance of back-to-back years in which temperatures were just about as opposite as they can be. In 2002 the high was 86 with a low of 67,  overall 12.5 degrees ABOVE normal. Then in 2003 the high was 58 with a low of 38, overall 16 degrees BELOW normal.

The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:46 and sunrise is at 5:20. Sunset is at 20:23 and twilight ends at 20:57. There's a total of 15 hours, 3 minutes of daylight today and 16 hours, 11 minutes between twilights. We gained a minute of daylight from yesterday. Tomorrow twilight begins at 4:45 and sunrise is at 5:19. The moon is waxing gibbous. Illumination was 76% at midnight, will be 81% at noon and 85% at midnight tonight. Moonset was at 2:22 this morning. Moonrise is at 16:08 this afternoon. Moonset is at 2:57 tomorrow morning. Moonlight time is 10 hours, 14 minutes which is 42 minutes shorter than yesterday. 

Spring began on March 12th and runs for 84 days through June 3rd. Warm Spring began on April 13th and runs for 52 days through June 3rd. High temperatures in this period are usually in the 50s, 60s and 70s. Highs in the 80s and 90s occur infrequently. Flag Day is in 14 days.

Tuesday, May 31, 2011

May 31: ORD

Today is May 31st. It's the 151st day of the year. 214 days remain. It's week 22 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 75 and the normal low is 53. I've calculated the 32-year averages at 77 and 55.


On the hot side, in 1991 the high was 89 with a low of 67. Three years earlier, in 1988, the high was 92 (O'Hare's only 90s high on May 31) with a low of 61, a 31 degree spread. In 2002 the high was 86 with a low of 67. In 1987 the high was 88 with a low of 64. Two years later, in 1989, the high was 84 with a low of 67. Another hot 80s highs was 87 in 1986. The other warm lows were 66 last year (in 2010) and 65 in both 2006 and 2007. The record high of 98 was set back in 1934. The record warmest low of 72 occurred back in 1919.
25 of the past 32 highs (78%) were in the: 70s (15) and 80s (10). One high was in the hot 90s. Six highs were in the cool: 50s (2) and 60s (4).

In looking back through the years to the first May at O'Hare in 1959, the following instances were notable: In 1978 the high was a hot 88 with a low of 56, a 32 degree spread. In 1972 the high was a cool 63 degrees. In 1970 the low was a warm 70 degrees. In 1969 the high was 85 with a low of 53, a 32 degree spread. In 1966 the high was 66 with a cold low of 37, a cool day. In 1965 the high was 80 with a low of 44, a 36 degree spread. In 1963 the high was 80 with a low of 46, a 34 degree spread. In 1961 the high was 85 with a low of 53, a 32 degree spread.

More recently, there were large spreads of 36 degrees in 1990 (76/40), 33 degrees in 1992 (77/44), 33 degrees in 1996 (74/41), 31 degrees in 1981 (72/41) and 30 degrees in 1995 (84/54).

On the cool side, in 2003 the high was 58 with a low of 38. A decade earlier, in 1993, the high was 65 with a low of 39. Other cool lows were 40 in 1990, 41 in 1981 and 41 in 1996. Other cool highs were 59 in 1983 and 62 in 2001. Both records were set way back in the 19th century. The record low of 35 was set way back in 1873. The record coolest high of 43 occurred way back in 1889. 30 of the last 32 lows (94%) were in the: 40s (9), 50s (9) and 60s (12). Two lows were in the cold 30s.

The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:46 and sunrise is at 5:20. Sunset is at 20:22 and twilight ends at 20:56. There's a total of 15 hours, 2 minutes of daylight today and 16 hours, 10 minutes between twilights. We gained two minutes of daylight from yesterday. Tomorrow twilight begins at 4:46 and sunrise is at 5:20. The moon is waning crescent and will be new tomorrow at 16:03. Illumination was 3% at midnight, will be 1% at noon and 0% at midnight tonight. Moonrise is at 4:15 this morning. Moonset is at 19:34 tonight. Moonrise is at 4:58 tomorrow morning. Moonlight time is 15 hours, 19 minutes which is 24 minutes longer than yesterday.

The warm part of Spring (Warm Spring) began on April 13. Warm Spring runs for 52 days, through June 3. High temperatures in this period are usually in the 50s, 60s and 70s. Warmer 80s and 90s occur infrequently. Flag Day is in 14 days.

Tuesday, June 1, 2010

May 31: ORD

Today is May 31st. It's the 151st day of the year. 214 days remain. It's week 22 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 75 and the normal low is 53. I've calculated the 31-year averages at 76 and 54.


On the hot side, in 1991 the high was 89 with a low of 67. Three years earlier, in 1988, the high was 92 with a low of 61, a 31 degree spread. In 2002 the high was 86 with a low of 67. In 1987 the high was 88 with a low of 64. Two years later, in 1989, the high was 84 with a low of 67. The other 80s high of note was 87 in 1986. The other warm lows were 65 in both 2006 and 2007. The record high of 98 was set back in 1934. The record warmest low of 72 was set back in 1919.
24 of the past 31 highs were: 70s (15) and 80s (9). One high was in the warmer 90s. Six highs were in the cooler: 50s (2) and 60s (4).

In looking back through the years to the first May at O'Hare in 1959, the following instances were notable: In 1978 the high was a hot 88 with a low of 56, a 32 degree spread. In 1972 the high was a cool 63. In 1970 the low was a warm 70. In 1969 the high was 85 with a low of 53, a 32 degree spread. In 1966 the high was 66 with a cold low of 37, a cool day. In 1965 the high was 80 with a low of 44, a 36 degree spread. In 1963 the high was 80 with a low of 46, a 34 degree spread. In 1961 the high was 85 with a low of 53, a 32 degree spread.

More recently, there were large spreads of 36 degrees in 1990 (76/40), 33 degrees in 1992 (77/44), 33 degrees in 1996 (74/41), 31 degrees in 1981 (72/41) and 30 degrees in 1995 (84/54).

On the cool side, in 2003 the high was 58 with a low of 38. A decade earlier, in 1993, the high was 65 with a low of 39. Other cool lows were 40 in 1990, 41 in 1981 and 41 in 1996. Other cool highs were 59 in 1983 and 62 in 2001. Both records were set way back in the 19th century. The record low of 35 was set in 1873. The record coolest high of 43 was set in 1889. 29 of the last 31 lows were: 40s (9), 50s (9) and 60s (11). Two lows were in the colder 30s.

The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight began at 4:46 and sunrise was at 5:20. Sunset is at 20:22 and twilight ends at 20:56. There's a total of 15 hours, 2 minutes of daylight today and 16 hours, 10 minutes between twilights. Tomorrow twilight begins at 4:46 and sunrise is at 5:20. The moon is waning gibbous. Illumination was 89% at midnight, will be 86% at noon and 82% at midnight tonight. Moonset was at 8:31 this morning. Moonrise is at 23:33 tonight. Moonset is 9:34 tomorrow morning. Moonlight time is 8 hours, 58 minutes which is 29 minutes longer than yesterday.

- Bernie -


Monday, June 1, 2009

May 31: ORD

Today is May 31st. It's the 151st day of the year. 214 days remain. It's week 22 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 75 and the normal low is 53. I've calculated the 30-year averages at 77 and 55.


On the hot side, in 1991 the high was 89 with a low of 67. Three years earlier, in 1988, the high was 92 with a low of 61, a 31 degree spread. In 2002 the high was 86 with a low of 67. In 1987 the high was 88 with a low of 64. Two years later, in 1989, the high was 84 with a low of 67. The other 80s high of note was 87 in 1986. The other warm lows were 65 in both 2006 and 2007. The record high of 98 was set back in 1934. The record warmest low of 72 was set back in 1919.
23 of the past 30 highs were: 70s (14) and 80s (9). One high was in the warmer 90s. Six highs were in the cooler: 50s (2) and 60s (4).

In looking back through the years to the first May at O'Hare in 1959, the following instances were notable: In 1978 the high was 88 with a low of 56, a 32 degree spread. In 1969 the high was 85 with a low of 53, a 32 degree spread. In 1966 the high was 66 with a low of 37, a cool day. In 1965 the high was 80 with a low of 44, a 36 degree spread. In 1963 the high was 80 with a low of 46, a 34 degree spread. In 1961 the high was 85 with a low of 53, a 32 degree spread.

More recently, there were large spreads of 36 degrees in 1990 (76/40), 33 degrees in 1992 (77/44), 33 degrees in 1996 (74/41) and 30 degrees in 1995 (84/54).

On the cool side, in 2003 the high was 58 with a low of 38. A decade earlier, in 1993, the high was 65 with a low of 39. Other cool lows were 40 in 1990, 41 in 1981 and 41 in 1996. Other cool highs were 59 in 1983 and 62 in 2001. Both records were set way back in the 19th century. The record low of 35 was set in 1873. The record coolest high of 43 was set in 1889. 28 of the last 30 lows were: 40s (8), 50s (9) and 60s (11). Two lows were in the colder 30s.

The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight began at 4:46 and sunrise was at 5:20. Sunset is at 20:23 and twilight ends at 20:56. Tomorrow twilight begins at 4:46 and sunrise is at 5:19. There's a total of 15 hours, 3 minutes of daylight today and 16 hours, 10 minutes between twilights. The moon reached first quarter last night at 22:22. Illumination was 51% at midnight, will be 57% at noon and 62% at midnight tonight. Moonset was at 1:19. Moonrise is at 13:24. Moonset is at 1:42 tomorrow. Moonlight time is 11 hours, 55 minutes which is 46 minutes shorter than yesterday.

My Dad will celebrate a birthday in 11 days. My cousin Tiffany celebrates a birthday in 12 days. Flag day is in two weeks. Father's Day is in three weeks. -Bernie-

Sunday, June 1, 2008

May 31: ORD

Today is May 31st. It's the 152nd day of the year. 214 days remain.

Unless noted, the following data is based upon observations collected by the National Weather Service, Chicago, at O'Hare International Airport (ORD) between 1979 and 2007. Observations have been official at O'Hare since Jan. 17, 1980.

Before this, Midway International Airport (MDW) was the official station of record from Wed. July 1, 1942 to Thu. Jan. 17, 1980. Before July 1, 1942, records were official at various locations in the city going all the way back to Mon. Oct. 16, 1871. Records before this (back to Sat. Oct. 15, 1870) were lost during the Great Chicago Fire which began on the evening of Sun. Oct. 8, 1871.

According to the National Climatic Data Center (NCDC), the normal high is 75 and the normal low is 53. The 29-year averages are 76 and 54.

On the hot side, in 1991 the high was 89 with a low of 67. In 1988 we had our only 90s high of 92 with a low of 61. In 2002 the high was 86 with a low of 67. In 1987 the high was 88 with a low of 64. In 1989 the high was 84 with low of 67. In 1986 the high was 87 with a low of 63. Note that 5 of the 6 hot days of the past 29 years have been from 1986 to 1991. Other warm highs include 86 in 1994 and 84 in 1995. Other warm lows include 64 in 1999 and 65 the past two years. There have been 13 highs in the 70s (the largest category over the last 29 years)

On the cool side, in 2003 the high was 58 with a low of 38. In 1993 the high was 65 with a low of 39 (only 30s low). Other cool highs include 59 in 1983 and 62 in 2001. Other cool lows include 40 in 1990, 41 in 1981 and 41 in 1996. 27 of the 29 lows so far have been in the 40s (8), 50s (8) and 60s (11).

The following astronomical data is provided by the United States Naval Observatory. In Crystal Lake, twilight begins at 4:46 and sunrise is at 5:20. Sunset is at 20:23 and twilight ends at 20:57. There's a total of 15 hours, 3 minutes of sunlight and 16 hours, 11 minutes between twilights. The moon is waning crescent with 18% visible at midnight and 14% visible at noon. Moonrise was at 2:43 and moonset is at 16:57. Moonrise is at 3:13 tomorrow. Moonlight time is 14 hours, 14 minutes today. The moon will reach new next Tuesday at 14:23.

My father turns 68 in 11 days. Happy Birthday Dad! Flag day is in 14 days and Father's Day is in 15 days. - Bernie -