Helena

The tables below display average monthly climate and weather indicators in Helena Montana. Temperature by: Fahrenheit / Centigrade Helena Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Avg. Temperature 19.6 26.4 33.6 43.4 52.5 62.1 69.2 67.4 55.4 45.1 31.6 21.2 44.0 Avg. Max Temperature 29.6 36.9 44.8 56.1 65.4 75.8 85.0 83.2 69.8 58.5 42.4 31.3 56.6 Avg. Min Temperature 9.6 15.9 22.3 30.6 39.6 48.3 53.4 51.7 41.0 31.6 20.7 11.2 31.3 Days with Max Temp of 90 F or Higher 0.0 0.0 0.0 0.0 < 0.5 2.0 8.0 8.0 1.0 0.0 0.0 0.0 19.0 Days with Min Temp Below Freezing 29.0 27.0 27.0 18.0 4.0 < 0.5 0.0 < 0.5 3.0 17.0 27.0 30.0 182     Helena Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Heating Degree Days 1407 1081 973 648 388 137 34.0 65.0 321 617 1002 1358 8031 Cooling Degree Days 0.0 0.0 0.0 0.0 0.0 50.0 164 139 33.0 0.0 0.0 0.0 386     Helena Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Precipitation (inches) 0.6 0.4 0.7 1.0 1.8 1.9 1.1 1.3 1.1 0.6 0.5 0.6 11.6 Days with Precipitation 0.01 inch or More 8.0 6.0 8.0 8.0 11.0 11.0 8.0 8.0 6.0 6.0 7.0 8.0 96.0 Monthly Snowfall (inches) 8.6 6.1 7.4 4.9 1.4 0.1 < 0.05 0.1 1.5 2.3 6.4 8.3 47.1     Other Helena Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Wind Speed 6.7 7.3 8.2 9.1 8.8 8.5 7.8 7.4 7.4 7.1 7.1 6.7 7.7 Clear Days 5.0 4.0 4.0 4.0 5.0 6.0 14.0 13.0 11.0 8.0 5.0 4.0 82.0 Partly Cloudy Days 6.0 7.0 8.0 9.0 10.0 11.0 11.0 11.0 9.0 9.0 7.0 7.0 104 Cloudy Days 20.0 17.0 19.0 18.0 16.0 13.0 6.0 7.0 11.0 14.0 18.0 20.0 179 Percent of Possible Sunshine 46.0 55.0 61.0 59.0 60.0 64.0 78.0 74.0 67.0 60.0 44.0 42.0 59.0 Avg. Relative Humidity 52.5 68.5 63.5 58.5 55.5 56.0 53.0 49.5 51.0 54.5 59.0 66.0 69.0

Weather information for other cities in Montana • Billings Weather • Glasgow Weather • Great Falls Weather • Kalispell Weather • Missoula Weather