CONTIGUOUS UNITED STATES: Climate Summary – January 2011

The average temperature in January 2011 was 30.0 F. This was -0.8 F cooler than the 1901-2000 (20th century) average, the 37th coolest January in 117 years. The temperature trend for the period of record (1895 to present) is 0.1 degrees Fahrenheit per decade.

1.48 inches of precipitation fell in January. This was -0.74 inches less than the 1901-2000 average, the 9th driest such month on record. The precipitation trend for the period of record (1895 to present) is -0.01 inches per decade.