Polk County Climate
Polk County, Minnesota
Avg Annual Temp
39.5°F
Annual Precip
24.5"
Annual Snowfall
—
Extreme Heat Days
5.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Polk County Weather
Extreme Northern Temperatures
Polk County is significantly colder than most of the country, with an average annual temperature of 39.5°F compared to the 54°F national median. It receives just 24.5 inches of annual precipitation, making it drier than many coastal regions.
Far Below the State Average
At 39.5°F, Polk is much colder than the 42.8°F Minnesota state average. This temperature reflects its northern location in the Red River Valley.
Comparing Northern Neighbors
Polk is slightly cooler than neighboring Red Lake County, which averages 39.8°F. Both counties share a similar dry profile with less than 25 inches of annual precipitation.
Harsh Winters and Mild Summers
Winters are intense with a January average of 5.8°F and a seasonal average of 9.7°F. Summers remain mild with a July average of 67.9°F and only 5 days reaching 90°F.
Prioritize Deep Winter Insulation
While specific snowfall data is limited, the deep freeze of a 5.8°F January requires heavy-duty home insulation. Outdoor planning should focus on the brief window of mild 66.1°F summer weather.
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.