Great Falls, MT weather in December 1991

Temperature for December 1991

In December 1991 the average high temperature in Great Falls, MT was 44.5°F, and this was 7.7°F warmer than the average of 36.7°F. The hottest day in December 1991 was 18 December when the temperature reached 52.0°F. Overnight the average temperature in December is 16.8°F and in 1991 the average overnight temperature was 11.1°F warmer at 27.9°F.

Precipitation for December 1991

In December the average monthly rainfall in Great Falls, MT is 0.73 inches with rain usually falling on 1 days. In December 1991 there was a total of 0.10 inches of rain, that fell on 1 days.