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 1981 to 2010 for the NOAA National Climatic Data Center.

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
6.6 Alta 21.5 54.6
3.3 Cody 8.0 20.3
10.4 Jackson 17.5 44.5
14.4 Moose 44.7 113.5
13.0 Moran 40.1 101.9
14.9 Yellowstone Lake 30.5 77.5
8.3 Yellowstone Park, Mammoth 10.2 25.9
14.6 Yellowstone Park, Old Faithful 43.8 111.3

Southwest Wyoming

December snowfall averages
Days Place Inches Centi­metres
4.1 Evanston 9.8 24.9
3.2 Fontenelle Reservoir Dam 4.5 11.4
6.5 Kemmerer 13.5 34.3
5.8 Rock Springs 6.3 16.0

North - Central Wyoming

Average snow for December
Days Place Inches Centi­metres
1.7 Boysen Reservoir Dam 1.3 3.3
5.1 Lander 10.1 25.7
3.5 Riverton 4.8 12.2
6.7 Ten Sleep 10.8 27.4
2.2 Thermopolis 4.5 11.4
5.1 Worland 6.7 17.0

Northeast Wyoming

Average total snowfall in December
Days Place Inches Centi­metres
3.6 Buffalo 8.0 20.3
6.1 Devils Tower 10.0 25.4
6.9 Gillette 9.3 23.6
8.4 Sheridan 11.9 30.2
7.4 Sundance 13.3 33.8

Southeast Wyoming

Average total snowfall in December
Days Place Inches Centi­metres
7.7 Casper 11.0 27.9
7.1 Centennial 15.2 38.6
6.8 Cheyenne 8.4 21.3
5.6 Douglas 8.6 21.8
5.5 Laramie 7.0 17.8
2.1 Muddy Gap 6.3 16.0
3.6 Torrington 5.9 15.0
Reference

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

Wyoming Snowfall
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