Great Falls, MT weather in May 1986

Temperature for May 1986

In May 1986 the average high temperature in Great Falls, MT was 67.2°F, and this was 0.2°F warmer than the average of 67.0°F. The hottest day in May 1986 was 31 May when the temperature reached 89.1°F. Overnight the average temperature in May is 39.2°F and in 1986 the average overnight temperature was 0.6°F warmer at 39.7°F.

Precipitation for May 1986

In May the average monthly rainfall in Great Falls, MT is 2.38 inches with rain usually falling on 11 days. In May 1986 there was a total of 1.93 inches of rain, that fell on 17 days.