Kenosha County Climate
Kenosha County, Wisconsin
Avg Annual Temp
48.3°F
Annual Precip
35.7"
Annual Snowfall
36.2"
Extreme Heat Days
9.666666666666666
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Kenosha County Weather
Wisconsin’s Warmest National Profile
Kenosha County reaches an annual average of 48.3°F, the closest in this group to the national median of 53.8°F. It represents the southern extreme of the state's climate profile.
The State’s Southern Warm Spot
Averaging 48.3°F, Kenosha is nearly 4 degrees warmer than the Wisconsin average of 44.4°F. It experiences some of the mildest winters in the entire state.
Warmer and Drier than Inland
Kenosha is significantly warmer than Kewaunee County's 44.3°F average. It also sees less snowfall, with 36.2 inches compared to the 40+ inches seen in Jefferson and Iowa counties.
Hot Summers and Tame Winters
July averages a state-high 72.1°F with 10 days of extreme heat. January is relatively mild for Wisconsin at 22.9°F, leading to the lowest snowfall in this group at 36.2 inches.
Invest in Cooling Efficiency
High-efficiency air conditioning is a smart investment for the 10 days of 90°F heat. While snow is lighter here, residents still need to prepare for the 25.9°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.