Vernon County Climate
Vernon County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
46.1°F
Annual Precip
37.6"
Annual Snowfall
41.8"
Extreme Heat Days
6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5a
Minimum winter temperature range for plant survival
2,624
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Vernon County
Climate Verdict
Vernon County has a cool, averaging 46.1°F annually, moderate rainfall of 37.6 inches per year, rare extreme heat with only 5.833333333333333 days above 90°F annually, moderate snowfall of 41.8 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 16.8°F. summers are warm — July averages 71.4°F. Residents experience a substantial 55°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Vernon County closely matches the Wisconsin statewide average temperature of 44.4°F, it is somewhat wetter than average for Wisconsin.
Climate Profile
About Vernon County Weather
The Driftless Area's Climate
Vernon County has an annual average temperature of 46.1°F, which is cooler than the national median but warm for Wisconsin. Its rugged hills and valleys create significant variation in local temperatures.
One of Wisconsin's Wettest
At 37.6 inches of annual precipitation, Vernon is considerably wetter than the state average of 34.5 inches. Its 46.1°F average also makes it warmer than the typical Wisconsin county.
Wetter Than Its Neighbors
Vernon receives more precipitation than Trempealeau (35.2") and Walworth (36.8"). It is also slightly warmer than Trempealeau, benefiting from its more southerly position in the state.
Strong Summers and Steady Snow
July averages 71.4°F with 6 days of extreme heat, providing a robust growing season. Winters are cold but manageable, with 41.8 inches of snowfall and an average temperature of 20.3°F.
Flood and Moisture Preparedness
Ensure your home has proper drainage and sump pumps to handle the high 37.6-inch annual precipitation. Heating systems should be ready for January lows that average 16.8°F.
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.