Great Falls, MT weather in May 1981

Temperature for May 1981

In May 1981 the average high temperature in Great Falls, MT was 66.1°F, and this was 0.9°F cooler than the average of 67.0°F. The hottest day in May 1981 was 2 May when the temperature reached 82.0°F. Overnight the average temperature in May is 39.2°F and in 1981 the average overnight temperature was 2.5°F warmer at 41.7°F.

Precipitation for May 1981

In May the average monthly rainfall in Great Falls, MT is 2.38 inches with rain usually falling on 11 days. In May 1981 there was a total of 5.45 inches of rain, that fell on 20 days.