Average Annual Temperatures in Montana





Average annual temperatures for cities, towns, parks and lakes throughout Montana are listed below in degrees Fahrenheit and Celsius.

You can jump to a separate table for each region of the state: Northwestern, Southwestern, South - Central and Eastern Montana.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010.

Northwestern Montana

Average annual temperatures
High °F Low °F Place High °C Low °C
54 30 Cut Bank 12 -1
52 28 East Glacier Park 11 -2
58 36 Flathead Lake, Polson 14 2
53 30 Gibson Reservoir Dam 12 -1
55 31 Kalispell 13 0
60 34 Libby 16 1
58 34 Missoula 15 1
54 25 Polebridge 12 -4
56 32 Rogers Pass 13 0
56 28 Seeley Lake 14 -2
54 32 West Glacier 12 0
54 31 Whitefish 12 0

Southwestern Montana

Average temperatures for the year
High °F Low °F Place High °C Low °C
58 31 Bozeman 14 0
54 26 Butte 12 -3
56 27 Deer Lodge 13 -3
59 33 Gardiner 15 1
50 24 Hebgen Lake Dam 10 -4
58 33 Helena 15 0
57 27 Sula 14 -3
57 30 Virginia City 14 -1
49 20 West Yellowstone 9 -7

South - Central Montana

Average yearly temperatures
High °F Low °F Place High °C Low °C
61 37 Bighorn Lake, Yellowtail Dam 16 3
60 37 Billings 15 3
48 21 Cooke City 9 -6
53 33 Mystic Lake 12 0
55 30 Red Lodge 13 -1

Eastern Montana

Annual average temperature
High °F Low °F Place High °C Low °C
57 30 Culbertson 14 -1
59 31 Elwell Lake, Tiber Dam 15 -1
60 33 Fort Peck Lake Dam 15 1
55 31 Glasgow 13 0
59 35 Glendive 15 1
57 32 Great Falls 14 0
57 30 Havre City 14 -1
56 31 Lewistown 13 -1
59 34 Miles City 15 1
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Montana Temperatures
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