Portland, ME weather in December 2009

Temperature for December 2009

In December 2009 the average high temperature in Portland, ME was 40.3°F, and this was 1.1°F warmer than the average of 39.2°F. The hottest day in December 2009 was 4 December when the temperature reached 68.0°F. Overnight the average temperature in December is 19.5°F and in 2009 the average overnight temperature was 0.4°F cooler at 19.1°F.

Precipitation for December 2009

In December the average monthly rainfall in Portland, ME is 4.26 inches with rain usually falling on 8 days. In December 2009 there was a total of 5.13 inches of rain, that fell on 6 days.