Powder River County Climate
Powder River County, Montana
Avg Annual Temp
46.7°F
Annual Precip
14.8"
Annual Snowfall
31.1"
Extreme Heat Days
38.37500000000001
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Powder River County Weather
A Land of Thermal Extremes
At 46.7°F, this county remains nearly 8 degrees cooler than the national median. It is a quintessential western landscape with hot summers and cold winters.
Warmer than the State Norm
Powder River is 3 degrees warmer than the Montana state average of 43.7°F. This makes it one of the warmest counties in the entire state.
A Regional Heat Leader
The 72.4°F July average is higher than most neighbors, highlighting its position as a regional heat hub. Precipitation of 14.8 inches stays just below the state norm.
Intense Heat and Moderate Snow
Summer is intense with 38 days reaching at least 90°F and a 69.2°F seasonal mean. Winters are manageable by Montana standards, averaging 25.0°F with 31.1 inches of snow.
Focusing on Summer Cooling
Air conditioning is a high priority here due to the frequent 90°F+ heat days. Residents must also prepare for the 31.1 inches of snow that typically falls between October and May.
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.