The average temperature in December 2009 was 30.2 F. This was -3.2 F cooler than the 1901-2000 (20th century) average, the 14th coolest December in 115 years. The temperature trend for the period of record (1895 to present) is 0.1 degrees Fahrenheit per decade.
2.88 inches of precipitation fell in December. This was 0.65 inches more than the 1901-2000 average, the 11th wettest such month on record. The precipitation trend for the period of record (1895 to present) is 0.02 inches per decade.
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