Carbon County Climate
Carbon County, Montana
Avg Annual Temp
44.3°F
Annual Precip
15.7"
Annual Snowfall
74.4"
Extreme Heat Days
23.33333333333333
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Carbon County Weather
Rugged Terrain With Cool Averages
Carbon County’s annual average temperature of 44.3°F sits below the national median. Its location at the foot of the Beartooth Mountains dictates this temperate mountain climate.
Aligned With Montana's Thermal Average
At 44.3°F, the county is just slightly warmer than the Montana state average of 43.7°F. It balances high-altitude cold with warmer valley winds.
Heavy Snowfall Compared to Neighbors
Carbon County receives a massive 74.4 inches of snow annually, nearly double that of neighboring Big Horn. Its 15.7 inches of precipitation is also slightly above the state average.
Brisk Winters and High Snow Totals
July averages 67.9°F with 23 days reaching over 90°F. However, winter is the dominant season, featuring a 24.9°F average and significant snow accumulation.
Heavy-Duty Snow Removal is Essential
With over 74 inches of snow, residents must have reliable four-wheel drive and professional-grade snow blowers. Homeowners should also check roof load ratings for heavy winter accumulation.
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.