Washington County Climate
Washington County, Minnesota
Avg Annual Temp
46.3°F
Annual Precip
34.1"
Annual Snowfall
—
Extreme Heat Days
11.15
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Washington County Weather
Urban Heat and Continental Cold
Washington County averages 46.3°F annually, making it one of the warmer spots in this northern state. Still, it remains several degrees cooler than the national median temperature.
One of Minnesota's Warmest Counties
The county's 46.3°F average is significantly higher than the Minnesota average of 42.8°F. It ranks near the top of the state for annual warmth due to its southern location.
Warmer and Drier than Waseca
Washington is nearly two degrees warmer than Waseca County's 44.6°F average. It receives 34.1 inches of rain, which is higher than the state average but lower than Waseca.
Milder Winters and Toasty Summers
July averages 72.8°F with 11 days of extreme heat. Winter is relatively mild for Minnesota, featuring a 15.8°F January average and a 19.3°F winter mean.
Urban Cooling and Winter Readiness
Air conditioning is important for the 11 days of extreme summer heat. While county-specific snowfall data is limited, residents should plan for regional winter averages typical of the metro area.
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.