Average Snowfall for Wyoming in May





The tables below give monthly averages for snowfall during May at cities, towns and parks in Wyoming. 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: Northwest, Southwest, North - Central, Northeast and Southeast Wyoming.

Northwest Wyoming

Average total snowfall in May
Days Place Inches Centi­metres
1.2 Alta 2.5 6.4
0.2 Cody 0.8 2.0
0.4 Jackson 0.6 1.5
1.1 Moose 0.9 2.3
1.8 Moran 2.9 7.4
4.3 Yellowstone Lake 6.9 17.5
1.2 Yellowstone Park, Mammoth 1.7 4.3
2.4 Yellowstone Park, Old Faithful 5.4 13.7
3.0 Yellowstone Park, South Entrance 5.0 12.7

Southwest Wyoming

May snowfall averages
Days Place Inches Centi­metres
0.2 Fontenelle Reservoir Dam 0.6 1.5
0.7 Kemmerer 1.4 3.6

North - Central Wyoming

Average snow for May
Days Place Inches Centi­metres
0.1 Boysen Reservoir Dam 0.1 0.3
1.8 Lander 4.5 11.4
1.3 Riverton 2.1 5.3
0.6 Ten Sleep 0.9 2.3
0.1 Thermopolis 0.2 0.5

Northeast Wyoming

Average total snowfall in May
Days Place Inches Centi­metres
0.4 Buffalo 0.9 2.3
0.3 Devils Tower 0.4 1.0
0.6 Gillette 1.3 3.3
0.3 Sheridan 0.6 1.5
0.7 Sundance 1.5 3.8

Southeast Wyoming

Average total snowfall in May
Days Place Inches Centi­metres
1.6 Casper 2.6 6.6
1.9 Cheyenne 3.4 8.6
1.0 Douglas 1.6 4.1
3.1 Laramie 6.0 15.2
0.2 Torrington 0.1 0.3
Reference

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

Wyoming Snowfall
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