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Montana Weather Records

Weather data and records for the U.S. state of Montana based on data compiled by the NOAA.
All data displayed in U.S. customary units.
All data displayed in metric units.
Montana Statewide Averages
Average temperatures over the entire territory of the state, from 1991–2020.
Month High (°F°C) Low (°F°C)
January 30.7-0.7 11.4-11.5
February 34.01.1 13.1-10.5
March 43.96.6 21.0-6.1
April 53.311.8 29.0-1.7
May 63.117.3 37.83.2
June 71.722.0 45.87.6
July 81.727.6 51.610.9
August 80.927.2 49.910.0
September 69.921.1 41.55.3
October 54.812.6 30.8-0.6
November 40.64.8 20.6-6.3
December 31.4-0.3 12.8-10.7
Entire Year 54.812.7 30.5-0.8
Montana Cities
Yearly weather averages for various places in Montana, from 1991–2020.
City Average (°F°C) Record (°F°C) Yearly (inchescm)
High Low High Low Precipitation Snow
Anaconda 57.214.0 29.7-1.3 102.038.9 -38.0-38.9 14.837.5 75.9192.9
Billings 59.515.3 37.12.8 111.944.4 -49.0-45.0 14.336.3 57.4145.7
Bozeman 57.514.2 32.20.1 105.140.6 -43.1-41.7 19.850.2 92.6235.3
Butte 54.212.3 26.3-3.2 100.037.8 -52.1-46.7 12.732.3 n/a
Conrad 56.713.7 30.2-1.0 105.140.6 -45.9-43.3 12.030.6 47.2119.9
Cut Bank 54.212.3 29.9-1.2 107.141.7 -47.0-43.9 10.727.3 n/a
Dillon 56.313.5 30.4-0.9 102.038.9 -40.0-40.0 9.423.9 n/a
Glasgow 55.212.9 31.5-0.3 113.045.0 -59.1-50.6 13.434.1 39.9101.2
Glendive 59.015.0 33.70.9 117.047.2 -50.1-45.6 14.837.5 25.063.5
Great Falls 57.314.1 32.60.3 107.141.7 -49.0-45.0 14.837.5 66.3168.5
Hamilton 59.615.3 33.30.7 105.140.6 -38.9-39.4 13.233.4 n/a
Hardin 63.517.5 33.70.9 111.944.4 -47.0-43.9 12.832.6 28.071.2
Havre 56.813.8 30.3-0.9 111.043.9 -56.9-49.4 11.729.7 41.6105.8
Helena 57.914.4 33.10.6 105.140.6 -42.0-41.1 11.328.6 37.194.1
Kalispell 55.513.1 31.6-0.2 105.140.6 -38.0-38.9 16.842.6 57.9147.0
Livingston 59.115.1 33.10.6 106.041.1 -45.0-42.8 14.436.5 n/a
Miles City 59.115.1 34.51.4 111.043.9 -49.0-45.0 12.932.7 n/a
Missoula 57.614.2 33.81.0 107.141.7 -33.0-36.1 14.135.9 42.8108.7
Opheim 50.510.3 25.2-3.8 105.140.6 -49.0-45.0 11.930.3 36.492.5
Red Lodge 55.112.8 31.0-0.6 100.938.3 -42.0-41.1 23.259.0 143.6364.8
West Glacier 54.112.3 32.80.5 100.037.8 -36.0-37.8 30.377.0 118.1300.0
West Yellowstone 53.211.8 22.4-5.3 97.036.1 -65.9-54.4 24.161.2 n/a