Portage County Climate
Portage County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
44.2°F
Annual Precip
34.0"
Annual Snowfall
48.7"
Extreme Heat Days
4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
4b
Minimum winter temperature range for plant survival
2,312
Favors cool-season crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Portage County
Climate Verdict
Portage County has a cool, averaging 44.2°F annually, moderate rainfall of 34.0 inches per year, rare extreme heat with only 4.1 days above 90°F annually, moderate snowfall of 48.7 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 15.3°F. summers are pleasantly cool with July averaging 69.7°F. Residents experience a substantial 54°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Portage County closely matches the Wisconsin statewide average temperature of 44.4°F.
Climate Profile
About Portage County Weather
A Classic Northern Humid Continental Climate
Portage County's 44.2°F average temperature sits roughly 10 degrees below the national median. This humid continental climate experiences sharp seasonal shifts throughout the year.
Matching the Wisconsin State Average
The county closely mirrors the Wisconsin state average temperature of 44.4°F. It sits in the middle of the pack for temperature across the state's 72 counties.
Consistent Central Wisconsin Weather Patterns
Portage sees 34.0 inches of annual precipitation, nearly identical to the state average. This aligns closely with neighboring Wood County's central Wisconsin climate profile.
Cold Winters and Mild Summers
Winters are cold with an average temperature of 18.6°F and 48.7 inches of snowfall. Residents enjoy mild summers with only 4 days hitting 90°F or higher.
Prepare for Snow and Deep Freezes
Homeowners should prioritize high-quality insulation to handle the nearly 50 inches of snow. Modern HVAC systems help manage the occasional heat spikes during July's 69.7°F average.
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.