Summer Temperature Comparison
Climate

Illinois vs Ohio: Summer Temperature

Illinois has hotter summers than Ohio.

Illinois flag
Illinois
IL • Midwest
Winner
73.4°F
Average statewide summer temperature across June, July, and August.
Ohio flag
Ohio
OH • Midwest
70.9°F
Average statewide summer temperature across June, July, and August.

Visual Comparison

Illinois 73.4°F
Ohio 70.9°F

Difference: 2.5°F — Illinois leads.

National Rankings

Where They Rank Nationally

See where both states fall among all 50 states for summer temperature.

Illinois #18 · 73.4°F
Ohio #27 · 70.9°F
Lowest Highest

Top 10 States — Summer Temperature

#1 Louisiana flag Louisiana
81.1°F
#2 Texas flag Texas
81.1°F
#3 Florida flag Florida
81.0°F
#4 Oklahoma flag Oklahoma
79.6°F
#5 Mississippi flag Mississippi
79.5°F
#6 Arkansas flag Arkansas
78.8°F
#7 Georgia flag Georgia
78.7°F
#8 Alabama flag Alabama
78.6°F
#9 South Carolina flag South Carolina
78.4°F
#10 Arizona flag Arizona
78.1°F
Selected states
#18 Illinois flag Illinois
73.4°F
#27 Ohio flag Ohio
70.9°F

Illinois ranks 18th and Ohio ranks 27th nationally for summer temperature.

Related Context

Climate Breakdown

Summer heat affects electricity bills, outdoor lifestyle, and worker productivity.

Metric
Illinois
Ohio

What This Means

Illinois vs Ohio: Summer Temperature in context

Illinois has a summer temperature of 73.4°F, compared with 70.9°F in Ohio. Average statewide summer temperature across June, July, and August.

Illinois
73.4°F
Ohio
70.9°F
Difference
2.5°F

People Also Ask

Illinois vs Ohio Summer Temperature — Common Questions

Q What is Illinois's summer temperature?

Illinois's summer temperature is 73.4°F.

Q What is Ohio's summer temperature?

Ohio's summer temperature is 70.9°F.

Q Which state has a higher summer temperature — Illinois or Ohio?

Illinois has hotter summers than Ohio.

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.