Columbia County Climate
Columbia County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.3°F
Annual Precip
37.6"
Annual Snowfall
40.9"
Extreme Heat Days
11
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,617
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Columbia County
Climate Verdict
Columbia County has a cool, averaging 46.3°F annually, moderate rainfall of 37.6 inches per year, rare extreme heat with only 10.625 days above 90°F annually, moderate snowfall of 40.9 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 17.8°F. summers are warm — July averages 71.5°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
Columbia County closely matches the Wisconsin statewide average temperature of 44.4°F, it is somewhat wetter than average for Wisconsin.
Climate Profile
About Columbia County Weather
Milder winters than northern neighbors
Columbia County's 46.3°F annual average is roughly 8 degrees below the national median but represents a warmer pocket of the state. It features a humid continental climate with more distinct seasonal transitions than the far north.
Warmer than the state average
The county is noticeably warmer than the Wisconsin average, beating the 44.4°F state mark by nearly two degrees. This places it in the warmer southern tier of the state's 72 counties.
Similar climate to southern neighbors
Columbia County's average of 46.3°F is nearly identical to Dane County to the south. It is significantly wetter than northern counties, recording 37.6 inches of annual precipitation.
Summer heat meets heavy rain
Residents experience 11 days of extreme heat over 90°F, which is higher than many nearby regions. Annual snowfall is moderate for the state at 40.9 inches, while July averages reach a warm 71.5°F.
Balance cooling and heating needs
With double-digit extreme heat days, central air conditioning is more important here than in northern Wisconsin. Residents should also prepare for 37.6 inches of annual precipitation with proper drainage and gutter maintenance.
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.