Polk County Climate
Polk County, Wisconsin
Avg Annual Temp
43.9°F
Annual Precip
32.6"
Annual Snowfall
51.9"
Extreme Heat Days
6.333333333333333
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Polk County Weather
Cool Western Border Climate
Polk County averages 43.9°F annually, sitting about 10 degrees lower than the national median. It experiences the sharp seasonal transitions typical of the American Midwest.
Matching the State Average
The county's 43.9°F average is almost perfectly aligned with the Wisconsin state average of 44.4°F. It experiences slightly less precipitation than the state norm, with 32.6 inches annually.
Mid-Range for the Region
Polk is warmer than Oneida (40.3°F) and Pierce (42.8°F), but cooler than Ozaukee (46.7°F). It offers a balanced climate compared to its more extreme northern neighbors.
Standard Snow and Warm Julys
Winter brings 51.9 inches of snow and a 16.6°F average. Summer features a July average of 70.7°F and roughly 6 days of extreme heat over 90°F.
Ready for Heavy Snowfall
Residents must prepare for over 50 inches of snow and January lows of 13.0°F. Reliable heating and winter tires are essential for safely navigating this western border county.
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.