Mount Helena


Helena’s weather is usually clear, sunny and dry, and low humidity levels make both summer and winter temperatures more comfortable. Because Helena is on the “dry side” of the Continental Divide, there are generally more sunny days here than west of the Divide.

Warming periods between snowfalls prevent heavy accumulations, and valley snow depths rarely exceed five or six inches.

Superior air and water quality contribute to the moderate climate. The city of Helena is at 4,157 feet above sea level on the eastern front of the Rocky Mountains. The Helena Regional Airport, located in the valley, is 3,873 feet above sea level.

Helena visitors can enjoy all the four seasons offer in the way of events and recreation that include lakes, skiing, outdoor sports, camping, etc.

Helena Annual Climate Averages
Average relative humidity 69%
Average annual precipitation 11.6 inches
Average annual snowfall 47.1 inches
Average windspeed 7.7 mph
Helena Temperature Data January April July October
Average daily high temperature 29.6 56.1 85.0 58.5
Average daily low temperature 9.6 30.6 53.4 31.6
Average precipitation (inches) 0.6 1.0 1.1 0.6
Average clear days 5.0 4.0 14.0 8.0
Average partly cloudy days 6.0 9.0 11.0 9.0

*Information provided by