Great Falls, MT weather in August 1991

Temperature for August 1991

In August 1991 the average high temperature in Great Falls, MT was 88.2°F, and this was 3.8°F warmer than the average of 84.4°F. The hottest day in August 1991 was 31 August when the temperature reached 97.0°F. Overnight the average temperature in August is 50.8°F and in 1991 the average overnight temperature was 5.7°F warmer at 56.5°F.

Precipitation for August 1991

In August the average monthly rainfall in Great Falls, MT is 2.23 inches with rain usually falling on 9 days. In August 1991 there was a total of 1.51 inches of rain, that fell on 9 days.