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March 2013 - Report and Summary

The last freeze of the season came eleven days late on the 26th.

Year-to-date rainfall through month's end was 9.62 inches, compared with 14.22 inches in March 2012. March 2013 was 8.5 deg. Cooler than March 2012, and 4.75 inches drier. The thirty-day outlook for the month had called for above normal temperatures and near normal precipitation. When revised around the 1st, it had been changed to near normal temperatures and near normal precipitation.

March began cold, with below normal temperatures through the 13th. A storm system crossed on the 10th, bringing widespread rain and thunderstorms. A series of cold fronts was responsible for the below normal temperatures, and the storm track's position to the north of the region was responsible for the lack of rainfall.

Temperatures warmed to above normal levels on the 14th because of upper air high pressure, staying there through the 18th. A Pacific cold front brought readings back to near normal levels between the 19th and 21st. Strong warming on the 22nd preceded another storm system, which brought showers and thunderstorms to the region on the 23rd. An Arctic air mass arrived on the 24th, bringing well below normal temperatures through the 27th. Freezes occurred on the 25th and 26th.

Temperatures rose through the end of the month, with thunderstorms on the 30th and 31st bringing rainfall to the region.

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.

March 2013



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