Portland, ME weather in December 1989

Temperature for December 1989

In December 1989 the average high temperature in Portland, ME was 26.3°F, and this was 12.8°F cooler than the average of 39.2°F. The hottest day in December 1989 was 31 December when the temperature reached 39.9°F. Overnight the average temperature in December is 19.5°F and in 1989 the average overnight temperature was 18.2°F cooler at 1.3°F.

Precipitation for December 1989

In December the average monthly rainfall in Portland, ME is 4.26 inches with rain usually falling on 8 days. In December 1989 there was a total of 1.74 inches of rain, that fell on 2 days.