Average Snowfall for Wyoming in December





The tables below give monthly averages for snowfall during December 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 December
Days Place Inches Centi­metres
6.8 Alta 21.7 55.1
3.2 Cody 7.5 19.1
11.4 Jackson 16.4 41.7
15.1 Moose 44.1 112.0
14.0 Moran 39.9 101.3
15.4 Yellowstone Lake 35.4 89.9
10.2 Yellowstone Park, Mammoth 12.6 32.0
15.4 Yellowstone Park, Old Faithful 45.0 114.3
18.2 Yellowstone Park, South Entrance 64.7 164.3

Southwest Wyoming

December snowfall averages
Days Place Inches Centi­metres
3.3 Fontenelle Reservoir Dam 4.5 11.4
4.6 Kemmerer 9.5 24.1

North - Central Wyoming

Average snow for December
Days Place Inches Centi­metres
2.0 Boysen Reservoir Dam 2.2 5.6
4.9 Lander 9.3 23.6
4.6 Riverton 5.3 13.5
6.5 Ten Sleep 11.2 28.4
2.5 Thermopolis 4.5 11.4

Northeast Wyoming

Average total snowfall in December
Days Place Inches Centi­metres
4.6 Buffalo 7.0 17.8
5.8 Devils Tower 9.6 24.4
6.1 Gillette 8.4 21.3
2.8 Sheridan 5.2 13.2
7.5 Sundance 12.2 31.0

Southeast Wyoming

Average total snowfall in December
Days Place Inches Centi­metres
7.6 Casper 11.0 27.9
6.7 Cheyenne 8.8 22.4
5.7 Douglas 9.2 23.4
7.4 Laramie 7.3 18.5
3.2 Torrington 5.4 13.7
Reference

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

Wyoming Snowfall
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