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July 2014 - Report and Summary

The month of July 2014 was cooler and much wetter than normal. Compared with July 2013, the month was 1.1 deg. Cooler, and 0.28 inch wetter. Year-to-date rainfall was 2.26 inches greater in 2014 than in 2013 through the end of the month.

The thirty-day outlook had called for near normal temperatures and near normal precipitation. The late-June revision made no change. July began with near normal temperatures. A storm system and cold front on the 3rd brought rain that day, and below normal temperatures for the July 4th weekend.

Temperatures went slightly above normal on the 7th, and stay there through the 14th. Storm systems crossed on the 15th and 17th/18th. Both brought rain. The second system brought rains of three to five inches north of a Quitman-Linden line, and three to eight inches south of a Marshall-Crockett line.

The associated cool air mass brought temperatures of 5-15 degrees below normal through the 20th. The July 18th high readings, which were from the high 60s to middle 70s, were among the coolest July maximum temperatures ever recorded at some locations. The protracted cool spell was likely the most significant Summer cool spell in Tyler since July 1952.

Temperatures began to recover on the 20th as upper air high pressure re-asserted itself, and continued warm through the 28th with upper air high pressure overhead. Another upper air system and cold front crossed the afternoon of the 28th. This lowered temperatures through the end of the month, and brought scattered showers on the 28th, and heavy rainfall on the 31st.

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.

July 2014



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