Powder River County Climate
Powder River County, Montana
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.7°F
Annual Precip
14.8"
Annual Snowfall
31.1"
Extreme Heat Days
38
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,437
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Powder River County
Climate Verdict
Powder River County has a cool, averaging 46.7°F annually, arid conditions receiving just 14.8 inches of precipitation annually, occasional hot days — 38.37500000000001 per year above 90°F, moderate snowfall of 31.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 23.8°F. summers are warm — July averages 72.4°F. The 49°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Growing season and gardening data is currently limited for Powder River County. Check the USDA Plant Hardiness Zone Map and local extension office for specific guidance.
Regional Context
Powder River County closely matches the Montana statewide average temperature of 43.7°F, the county experiences 16.710454931972794 more extreme heat days than the state average.
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 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.