Great Falls, MT weather in December 1990

Temperature for December 1990

In December 1990 the average high temperature in Great Falls, MT was 30.0°F, and this was 6.8°F cooler than the average of 36.7°F. The hottest day in December 1990 was 10 December when the temperature reached 60.1°F. Overnight the average temperature in December is 16.8°F and in 1990 the average overnight temperature was 9.1°F cooler at 7.7°F.

Precipitation for December 1990

In December the average monthly rainfall in Great Falls, MT is 0.73 inches with rain usually falling on 1 days. In December 1990 there was a total of 0.74 inches of rain, that fell on 0 days.