Walworth County Climate
Walworth County, Wisconsin
Avg 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
Seasonal Overview
National Comparison
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
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.