Carbon County Climate
Carbon County, Montana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.3°F
Annual Precip
15.7"
Annual Snowfall
74.4"
Extreme Heat Days
23
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
1,836
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Carbon County
Climate Verdict
Carbon County has a cool, averaging 44.3°F annually, semi-arid conditions with only 15.7 inches of annual precipitation, occasional hot days — 23.33333333333333 per year above 90°F, heavy winter snowfall averaging 74.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 24.3°F. summers are pleasantly cool with July averaging 67.9°F. The 44°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Carbon County closely matches the Montana statewide average temperature of 43.7°F.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.