Average Temperature Comparison
Climate

Illinois vs Wisconsin: Average Temperature

Illinois is warmer overall than Wisconsin.

Illinois flag
Illinois
IL • Midwest
Winner
51.8°F
Average annual statewide temperature in degrees Fahrenheit.
Wisconsin flag
Wisconsin
WI • Midwest
43.1°F
Average annual statewide temperature in degrees Fahrenheit.

Visual Comparison

Illinois 51.8°F
Wisconsin 43.1°F

Difference: 8.7°F — Illinois leads.

Related Context

Full Climate Picture

The annual average masks a lot — summers and winters can tell a very different story.

Metric
Illinois
Wisconsin
Summer Temperature
73.4°F
66.8°F
Winter Temperature
28.3°F
17.2°F
Sunny Days / Year
95 days
89 days
Annual Precipitation
39.2 in
32.6 in
Electricity Rate
16.36 c/kWh
18.20 c/kWh

What This Means

Illinois vs Wisconsin: Average Temperature in context

Illinois has a average temperature of 51.8°F, compared with 43.1°F in Wisconsin, a gap of 20.2%. Average annual statewide temperature in degrees Fahrenheit.

Illinois
51.8°F
Wisconsin
43.1°F
Difference
8.7°F

People Also Ask

Illinois vs Wisconsin Average Temperature — Common Questions

Q What is Illinois's average temperature?

Illinois's average temperature is 51.8°F.

Q What is Wisconsin's average temperature?

Wisconsin's average temperature is 43.1°F.

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

Illinois is warmer overall than Wisconsin.

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

8.7°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.