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November 2011 - Report and Summary

The month of November 2011 saw temperatures slightly above normal, and rainfall slightly below normal. A series of migratory storms during the latter two-thirds of the month brought welcomed rainfall to the area, which eased but did not eliminate the drought. Compared with November 2010, the month was 2.0 deg. Warmer, and 1.76 inches wetter.

Year-to-date rainfall through month's end was 11.24 inches less in 2011 than in 2010. The thirty-day outlook had called for above normal temperatures and below normal precipitation.

The month began warm until a cold front arrived on the 2nd, which lowered temperatures through the 5th. Temperatures went back above normal between the 6th and 9th, ahead of a storm system which brought rain and cooler temperatures.

The cool and fair weather lasted through the 12th, when readings again warmed ahead of a storm system which crossed on the 16th with more rain and a brief cool-down through the 18th. Storm systems crossed on the 21st and 26th, with rainfall of between one-half inch and one inch accompanying each. Temperatures warmed ahead of both storms, and cooled slightly following the first system.

Arctic air arrived on the 27th, bringing temperatures several degrees below normal through the end of the month. The first freeze occurred just before midnight on the 27th, ending the growing season at 264 days it had begun on March 7.

The reporting period for temperatures and phenomenon on each day is for the twenty-four hours ending at midnight hours GMT--6 p.m. CST and 7 p.m. CDT. The reporting period for precipitation is for the twenty-four hours ending at noon GMT--6 a.m. CST and 7 a.m. CDT. All times are given using the twenty-four hour clock, and are expressed in Greenwich Mean Time.

Observations are from NWS Station 41/9207/4 in Tyler, Texas. The term "normal" refers to averages from the standard climatic period 1971-2000.

November 2011



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