Friday, September 10, 2010

Summer 2010 U.S. Climate Summary

Headline: It was the 4th warmest on record for the U.S. Summer 2010.
Climatologists and Meteorologists use June 1 through August 31 to define Summer and not the astrological dates of June 20,21,or 22 for the start of Summer and September 20, 21 or 22 for the end of Summer.
From NOAA: U.S. Temperature Highlights – Summer (June through August)

It was the fourth warmest summer on record in the United States. Three climate regions had temperatures in the top five: the Southeast (warmest), the Central (third warmest) and the Northeast (fourth warmest).

Abnormal warmth dominated much of the east, where a record warm summer occurred in Rhode Island, New Jersey, Delaware, Maryland, Virginia, North Carolina, Tennessee, South Carolina, Georgia and Alabama. Nineteen other states experienced “much above normal” average temperatures.

Several cities broke summer temperature records, including New York (Central Park); Philadelphia; Trenton, N.J.; Wilmington, Del.; Tallahassee, Fla. (tied); and Asheville, N.C.
U.S. Precipitation Highlights – Summer (June through August)
The summer storm pattern brought significant precipitation to the Upper Midwest. Wisconsin had its wettest summer on record, 6.91 inches above average. Several states in the region had a top-10 wettest summer: Michigan and Iowa (third wettest), Illinois and Nebraska (sixth), South Dakota (ninth) and Minnesota (10th). The East North Central climate region had its second wettest summer on record, and the nationally averaged precipitation was above average.
A persistent high pressure system and the lack of any significant tropical weather during the summer months contributed to below average precipitation in much of the Southeast and Mid-Atlantic. Long-term dryness in the Mid-Atlantic led to the development of severe drought in parts of Virginia, Maryland and West Virginia.
Heavy rainfall during the summer months across the Upper Midwest helped diminish rainfall deficits from the first five months of the year.

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