Polk County Climate
Polk County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
43.9°F
Annual Precip
32.6"
Annual Snowfall
51.9"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,440
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Polk County
Climate Verdict
Polk County has a cool, averaging 43.9°F annually, moderate rainfall of 32.6 inches per year, rare extreme heat with only 6.333333333333333 days above 90°F annually, moderate snowfall of 51.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 13.0°F. summers are warm — July averages 70.7°F. Residents experience a substantial 58°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Polk County closely matches the Wisconsin statewide average temperature of 44.4°F.
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 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.