Thursday, June 19, 2008

ORD Temperature Updates 2008 (May-Aug.)

In this blog, I'll recount the records, near records and significantly abnormal temperatures of 2008, starting with the current and looking back to January 1st.
This post covers May through August 2008.

August 31: the high of 90 was only the second 90s high of the past 30 years...it was 92 in 2000.

August 24: the day with perhaps the most unified temperatures: for the highs, there's only three categories but only the 70s (11 occurrences) and 80s (18 occurrences) are prominent...a lone high of 90 occurred in 1983; for the lows, there are only two categories: the 50s (11 occurrences) and 60s (19 occurrences).

August 22: low of 72 was only the third 70s low of the past 30 years. In addition, this was the warmest 70s low of the past 30 years. Others were 71 in 1989 and 70 in 1996.

August 10: low of 58 was only the fifth 50s low of the past 30 years.

August 4: low of 70 was only the sixth 70s low of the past 30 years.

July 30: low of 72 was only the sixth 70s low of the past 30 years.

July 19: high of 78 was only the third 70s high of the past 30 years.

July 8: low of 70 was only the sixth 70s low of the past 30 years.

July 7: low of 71 was only the fourth 70s low of the past 30 years.

July 4: low of 52 was the second coldest low behind 1996's 51.

July 3: high of 71 was the coolest high of the past 30 years. This eclipsed the high of 72 in 2000.

June 12: the hottest June 12th of the past 30 years. The mean was 15 degrees above normal. The low of 73 was 2 degrees short of the record of 75 in 1920. It was only the second 70s low of the past 30 years, this coming on the heels of the low of 70 in 2005. The high of 91 was only the 5th 90s high of the past 30 years.

June 7: low of 69 tied 1979 as the warmest 60s low. The warmest low of the last 30 years is 73 degrees in 1999.

June 6: low of 73 was the first 70s low (and warmest low) of the last 30 years and was 4 degrees short of the record low of 77 set in 1925.

May 27: high of 50 (23 degrees below normal) and low of 42 for a mean of 46, 16 degrees below normal. The high of 50 replaces 54 in 1996 as the coolest high of the past 30 years. The mean of 46 replaces the prior coolest mean of 48 in 1992. In 1992, the mean was 14 below normal - the low was the coolest (33 degrees).

May 22: high of 59 tied the same high in 1986...these are tied for the coolest highs of the last 30 years

May 6: high of 81...only the fifth 80s high of the last 30 years

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