Prairie County Climate
Prairie County, Montana
Avg Annual Temp
43.8°F
Annual Precip
14.0"
Annual Snowfall
11.8"
Extreme Heat Days
30.26666666666667
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Prairie County Weather
Vast Temperature Swings on the Plains
The 43.8°F average is about 10.6 degrees below the national median. This eastern Montana county experiences wide temperature swings characteristic of the Great Plains.
Perfectly Aligned with Montana
Prairie County aligns almost perfectly with the Montana state average of 43.7°F. It serves as a reliable benchmark for the state's overall thermal profile.
Exceptionally Dry Winters
It is remarkably dry with only 11.8 inches of snow annually, far less than its western neighbors. Total precipitation of 14.0 inches also trails the 15.4-inch state average.
Deep Winter and Sunny Summers
Extremes define the year, with a cold 17.2°F January and a warm 70.9°F July. Despite the low snowfall, the 19.5°F winter average remains biting.
Cooling and Drought Prep
With 30 extreme heat days and very low snowfall, residents should focus on cooling and drought-resistant landscaping. Winter prep involves managing wind chill rather than shoveling heavy snow.
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.