Walworth County Climate
Walworth County, Wisconsin
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
48.2°F
Annual Precip
36.8"
Annual Snowfall
40.1"
Extreme Heat Days
15
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
5b
Minimum winter temperature range for plant survival
2,812
Supports most vegetables & fruits
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Walworth County
Climate Verdict
Walworth County has a cool, averaging 48.2°F annually, moderate rainfall of 36.8 inches per year, rare extreme heat with only 15 days above 90°F annually, moderate snowfall of 40.1 inches annually. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are very cold — January averages 21.7°F. summers are warm — July averages 72.4°F. Residents experience a substantial 51°F difference between winter and summer.
Outdoor & Gardening Guidance
Winter sports enthusiasts benefit from reliable snow cover for 3-4 months annually.
Regional Context
Walworth County is 3.8°F warmer than the Wisconsin statewide average of 44.4°F, it is somewhat wetter than average for Wisconsin.
Climate Profile
About Walworth County Weather
Wisconsin's Warmest Edge
Walworth County averages 48.2°F annually, making it one of the warmest regions in Wisconsin. While still cooler than the national median, it represents a more temperate southern-tier climate.
Above the State Average
The county is significantly warmer than the state average of 44.4°F. It also receives more precipitation than many northern counties, averaging 36.8 inches per year.
Warmer and Rainier Than Neighbors
Walworth is warmer than Sheboygan and receives more annual precipitation than most other counties in this group. It experiences far more extreme heat days than any of its northern counterparts.
Hot Summers and Milder Winters
Summers are intense with 15 days of heat over 90°F and a July average of 72.4°F. Winters are the mildest in the group, with a January average of 21.7°F and 40.1 inches of snow.
Focus on Cooling Capacity
Ensure your air conditioning can handle 15 days of 90-degree heat, the highest frequency in the region. While winters are milder, efficient heating is still needed for the 24.6°F winter average.
Frequently Asked Questions
What is the average temperature in Walworth County?
How much rain does Walworth County get?
Does it snow in Walworth County?
How hot does Walworth County get in summer?
How cold are winters in Walworth County?
Track your own weather in Walworth County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.