Sheridan County Climate
Sheridan County, Wyoming
Avg Annual Temp
43.5°F
Annual Precip
19.0"
Annual Snowfall
74.9"
Extreme Heat Days
23.9625
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Sheridan County Weather
Cool Mountain Air in Sheridan
Sheridan’s 43.5°F average annual temperature sits more than 10 degrees below the national median. This mountain-influenced climate maintains a cool profile compared to the broader United States.
A Typical Wyoming Climate
The county closely mirrors the Wyoming state average of 43.8°F. However, its 19.0 inches of annual precipitation makes it much wetter than the state average of 13.9 inches.
Wetter Than Its Basin Neighbors
Sheridan receives significantly more moisture than adjacent Washakie County, which averages only 11.0 inches of rain and snow. Its 74.9 inches of annual snowfall also stands out in the region.
Cold Winters and Sharp Heat
July averages a mild 68.0°F, yet the county still records 24 days above 90°F each year. Winter dominates the calendar with an average January temperature of 23.2°F.
Prepare for Snow and Sun
Residents need high-capacity snow shovels to manage 75 inches of annual accumulation. Dual-purpose HVAC systems are wise to handle both sub-freezing winters and the three weeks of summer heat.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.