Great Falls, MT weather in September 1975

Temperature for September 1975

In September 1975 the average high temperature in Great Falls, MT was 75.5°F, and this was 1.7°F warmer than the average of 73.9°F. The hottest day in September 1975 was 16 September when the temperature reached 86.0°F. Overnight the average temperature in September is 42.9°F and in 1975 the average overnight temperature was 1.8°F cooler at 41.1°F.

Precipitation for September 1975

In September the average monthly rainfall in Great Falls, MT is 1.36 inches with rain usually falling on 6 days. In September 1975 there was a total of 0.63 inches of rain, that fell on 6 days.