Portland, ME weather in December 1991

Temperature for December 1991

In December 1991 the average high temperature in Portland, ME was 35.6°F, and this was 3.6°F cooler than the average of 39.2°F. The hottest day in December 1991 was 1 December when the temperature reached 55.9°F. Overnight the average temperature in December is 19.5°F and in 1991 the average overnight temperature was 0.2°F warmer at 19.7°F.

Precipitation for December 1991

In December the average monthly rainfall in Portland, ME is 4.26 inches with rain usually falling on 8 days. In December 1991 there was a total of 3.92 inches of rain, that fell on 9 days.