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Posted at 03:00 PM ET, 08/01/2011

Extreme July weather: hottest ever in D.C., Philadelphia, and Austin; record wettest in Chicago


Martin Harris, 8, of Bedford, Texas, cools off in a sprinkler in his uncle's front yard Sunday, July 31, 2011. (Richard W. Rodriguez - AP)
Washington, D.C. wasn’t the only city to suffer through a record hot July. Philadelphia, Baltimore, and Atlantic City did too. In the south central U.S., Austin and Wichita Falls, Tx. as well as Oklahoma City, Ok. experienced record hot months. Along the northern fringe of the heat bubble, Chicago was deluged with its wettest July on record.

The National Weather Service in Norman, Oklahoma reported this morning:

AFTER A RECORD BREAKING JUNE...JULY WAS ANOTHER MONTH OF UNPRECEDENTED HEAT ACROSS THE SOUTHERN PLAINS. MANY RECORDS WERE TIED OR BROKEN AT WILL ROGERS WORLD AIRPORT IN OKLAHOMA CITY OKLAHOMA AND SHEPPARD AIR FORCE BASE IN WICHITA FALLS TEXAS.

THE HIGHEST DAILY TEMPERATURE FOR THE MONTH WAS 111 DEGREES...RECORDED AT WICHITA FALLS ON THE 9TH. OKLAHOMA CITY REACHED 110 DEGREES THAT SAME DAY. MOST IMPRESSIVELY...BASED ON THE AVERAGE MONTHLY TEMPERATURE...BOTH LOCATIONS CLAIMED NEW RECORDS FOR THEIR WARMEST JULY AND WARMEST SINGLE CALENDAR MONTH SINCE RECORDS BEGAN.

Wichita Falls only received a trace of precipitation the entire month, making July its second driest on record (no precipitation fell in July, 2003). No measurable precipitation has occurred there in 47 days.

Further south, in Austin, Texas, the blog Capital Climate reported:

Just 2 years after setting the record for all-time hottest month in July 2009, preliminary data from Austin indicate unofficially that this month’s average temperature of 89.7° will set another new record.

And Dallas, Texas is in the midst of its second longest stretch of consecutive 100-plus days at 30, nearing the record of 42 from 1980.

Back to the north, while Chicago had its third warmest July on record, it was rainfall that set it apart in the weather record books. The Windy City received 11.15” of rain, its wettest July on record. Amazingly, it went from having one of its driest July’s on record as of July 21 to its wettest in just six days. Nearly nine inches alone fell on the weekend of July 22 and 23.

Nearby Minneapolis had its 5th warmest July on record and most humid, based on number of hours with a dew point of at least 70.

Headed east, in addition to D.C.’s historically hot month, the swelter also smacked Baltimore, Philadelphia and Atlantic City, which had their all-time hottest months.

Across the country, AccuWeather writes: “According to the National Weather Service, a total of 2,676 daily record high temperatures were either broken or tied in July across the U.S., besting the total from a hot July 2010 by more than 1,200.”

Several of those daily record highs were also all-time record highs where they occurred, including these: Childress, Texas 117; Tallahassee, Florida 105; Hartford, Connecticut 103; Newark, N.J. 108; Reading, Pa. 106

More than 6,000 record high minimum temperatures were also set during the month across the country.

By  |  03:00 PM ET, 08/01/2011

Categories:  Extreme Heat, U.S. Weather, Latest

 
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