Winter Temperature Comparison
Climate

Illinois vs Wisconsin: Winter Temperature

Illinois has milder winters than Wisconsin.

Illinois flag
Illinois
IL • Midwest
Winner
28.3°F
Average statewide winter temperature across December, January, and February.
Wisconsin flag
Wisconsin
WI • Midwest
17.2°F
Average statewide winter temperature across December, January, and February.

Visual Comparison

Illinois 28.3°F
Wisconsin 17.2°F

Difference: 11.1°F — Illinois leads.

Related Context

Climate Breakdown

Cold winters affect heating bills, outdoor activity, and overall livability.

Metric
Illinois
Wisconsin
Summer Temperature
73.4°F
66.8°F
Average Temperature
51.8°F
43.1°F
Sunny Days / Year
95 days
89 days
Annual Precipitation
39.2 in
32.6 in

What This Means

Illinois vs Wisconsin: Winter Temperature in context

Illinois has a winter temperature of 28.3°F, compared with 17.2°F in Wisconsin, a gap of 64.5%. Average statewide winter temperature across December, January, and February.

Illinois
28.3°F
Wisconsin
17.2°F
Difference
11.1°F

People Also Ask

Illinois vs Wisconsin Winter Temperature — Common Questions

Q What is Illinois's winter temperature?

Illinois's winter temperature is 28.3°F.

Q What is Wisconsin's winter temperature?

Wisconsin's winter temperature is 17.2°F.

Q Which state has a higher winter temperature — Illinois or Wisconsin?

Illinois has milder winters than Wisconsin.

Q How much more winter temperature does Illinois have compared to Wisconsin?

11.1°F.

Sources: Core demographic data comes from the 2020 U.S. Census, with land area from U.S. Census Bureau TIGER files. Income, housing, affordability, and tax fields are maintained in our comparison dataset; purchasing-power figures use BEA Regional Price Parities. Minimum wage data comes from the U.S. Department of Labor, gas prices from AAA, and electricity rates from the U.S. Energy Information Administration. Political control and election fields use 2024 presidential results together with National Conference of State Legislatures data. Gun-law labels use the Giffords scorecard, alcohol system data comes from NABCA, and marijuana status uses NCSL's state cannabis laws tracker.