Average Snowfall for Montana in May

The tables below give monthly averages for snowfall during May at cities, towns and parks in Montana. The numbers are for the total amount of new snow and how many days it snows at least 0.1 inches (0.25 centimetres) this month.

The snowfall totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

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

Northwestern Montana

Average total snowfall in May
Days Place Inches Centi­metres
0.2 Kalispell 0.2 0.5
0.0 Libby 0.0 0.0
0.3 Missoula 0.3 0.8
0.5 Seeley Lake 0.7 1.8
0.3 West Glacier 0.5 1.3
0.1 Whitefish 0.1 0.3

Southwestern Montana

May snowfall averages
Days Place Inches Centi­metres
1.3 Anaconda 2.0 5.1
1.5 Bozeman 3.6 9.1
0.0 Dillon 0.1 0.3
0.4 Hebgen Lake Dam 1.2 3.0
0.2 Helena 0.1 0.3
1.4 Sula 2.0 5.1
1.8 Virginia City 4.3 10.9

South - Central Montana

Average snow for May
Days Place Inches Centi­metres
0.1 Bighorn Lake, Yellowtail Dam 0.2 0.5
0.8 Billings 0.9 2.3
4.0 Cooke City 9.0 22.9
3.5 Mystic Lake 14.6 37.1
2.5 Red Lodge 6.2 15.7

Eastern Montana

Average total snowfall in May
Days Place Inches Centi­metres
0.3 Glasgow 0.3 0.8
0.2 Glendive 0.5 1.3
1.4 Great Falls 1.9 4.8
0.3 Havre City 0.4 1.0
1.6 Lewistown 3.1 7.9
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Montana Snowfall
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