Cold and Snowy December, 2009 for Rapid City

Second Snowiest and Coldest December on Record at the Rapid City Regional Airport

The 13.1 inches of snow that fell in December was the second most ever recorded for December. The record for the snowiest December is 17.9 inches in 1975. The Christmas day blizzard produced 2.1 inches of snowfall and a record 0.20 inches of liquid precipitation on December 25. The previous record was 0.17 inches of liquid precipitation in 1988. The average temperature for the month of December at the Rapid City airport South Dakota was 16.1 degrees. The record coldest December was in 1983 when the average monthly temperature was 8.1 degrees.

Snowiest and Fifth Coldest December on Record for East Rapid City

The 14.5 inches of snow that fell in December was a record. The old record for the snowiest December was 12.4 inches in 1996. The Christmas day blizzard produced a record 3.8 inches of snowfall and 0.17 inches of liquid precipitation on December 25. The previous record was 2.8 inches of snowfall and 0.15 inches of liquid precipitation in 1996. The average temperature for the month of December for East Rapid City South Dakota was 18.3 degrees, which was the fifth coldest December on record. The coldest December was in 1927 with an average of 13.5 degrees.

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