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Wyoming Weather Records

Weather data and records for the U.S. state of Wyoming based on data compiled by the NOAA.
All data displayed in U.S. customary units.
All data displayed in metric units.
Wyoming Statewide Averages
Average temperatures over the entire territory of the state, from 1991–2020.
Month High (°F°C) Low (°F°C)
January 32.40.2 11.1-11.6
February 34.91.6 12.5-10.8
March 44.87.1 20.6-6.3
April 52.411.3 27.0-2.8
May 62.016.7 36.02.2
June 73.222.9 44.16.7
July 82.127.8 50.910.5
August 80.326.9 49.09.4
September 70.321.3 40.44.7
October 55.713.1 29.5-1.4
November 41.85.4 19.2-7.1
December 32.20.1 11.3-11.5
Entire Year 55.312.9 29.4-1.4
Wyoming Cities
Yearly weather averages for various places in Wyoming, from 1991–2020.
City Average (°F°C) Record (°F°C) Yearly (inchescm)
High Low High Low Precipitation Snow
Casper 60.015.6 32.00.0 109.042.8 -41.1-40.6 12.231.1 71.3181.1
Cheyenne 59.315.2 34.41.3 100.037.8 -34.1-36.7 15.439.1 63.4160.9
Deaver 60.315.7 30.6-0.8 106.041.1 -42.0-41.1 5.614.2 12.631.9
Gillette 58.915.0 33.71.0 109.943.3 -40.0-40.0 17.444.2 53.7136.5
Jackson Hole 54.112.3 24.7-4.0 100.938.3 -52.1-46.7 17.343.9 n/a
Laramie 55.212.9 27.9-2.3 93.934.4 -50.1-45.6 10.426.5 n/a
Sundance 57.414.1 33.10.6 105.140.6 -42.0-41.1 19.750.1 79.9202.9
Wheatland 64.618.1 35.31.9 111.944.4 -38.9-39.4 13.935.3 39.9101.4
Yellowstone National Park 49.49.7 19.6-6.9 98.136.7 -49.0-45.0 25.063.4 196.4498.9