2015 weather featured near-record rain, temperatures

2 years 1 month 3 weeks ago Thursday, December 31 2015 Dec 31, 2015 Thursday, December 31, 2015 12:22:59 PM CST December 31, 2015 in News
By: Tim Schmidt, KOMU 8 Weathercaster

COLUMBIA - As 2015 comes to an end, we take a look at a year in review at mid-Missouri weather. The year featured extremes in both temperature, and precipitation, most notably a very wet summer and a December that produced record breaking and historic flooding across the Ozarks and St. Louis.

Although the year began rather normal, February became cold, with an average temperature 8.8 degrees below normal. It was our 12th coldest February on record. 8.5” of snow fell on Columbia that month.

Overall, the winter was the 26th least snowiest, with only 12.0” received.

It was a mostly quiet spring severe weather season, typically seen from March through June. Our typical hail and wind producing thunderstorms did cause damage, but only two tornadoes were reported - in Randolph and Callaway counties.

The summer was very wet. From May through July, 21.64” of rain fell, and only 9 days in June were rain free. June was our 12th rainiest (7.56”), and July was our 5th rainiest (8.40”). Ameren was forced to open floodgates at the Bagnell Dam, releasing over 80,000 cu. ft per second of water.

A pattern of warm, dry weather began in August, lasting through early November, where temperatures began to rise nearly 2 to 4 degrees above average. November ended on a very rainy note, accumulating nearly 8.0" of rainfall within 15 days.

This December became the second wettest on record (7.04”), short only to the year of 1895, when Columbia received 7.82” of precipitation.

A large, historic storm system dumped over 7 inches of rainfall during the Christmas holiday, over central and southern Missouri. It forced the closure of over 400 roads in Missouri due to flooding, and prompted Ameren to release over 100,000 cu. ft per second at the Bagnell dam once again. 

Overall, 2015 has become the 11th wettest year on record, with 49.75” of rainfall, and the 15th warmest year on record, at an average temperature of 56.4 degrees. That is 1.8 degrees above average.

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