Illinois vs Indiana: Summer Temperature
Illinois has hotter summers than Indiana.
Visual Comparison
Difference: 1.0°F — Illinois leads.
Related Context
Climate Breakdown
Summer heat affects electricity bills, outdoor lifestyle, and worker productivity.
What This Means
Illinois vs Indiana: Summer Temperature in context
Illinois has a summer temperature of 73.4°F, compared with 72.4°F in Indiana. Average statewide summer temperature across June, July, and August.
People Also Ask
Illinois vs Indiana Summer Temperature — Common Questions
Q What is Illinois's summer temperature?
Illinois's summer temperature is 73.4°F.
Q What is Indiana's summer temperature?
Indiana's summer temperature is 72.4°F.
Q Which state has a higher summer temperature — Illinois or Indiana?
Illinois has hotter summers than Indiana.
More Comparisons: Illinois vs Indiana
Grouped tabs keep the deep-dive links tighter and easier to scan.
Explore Each State
Illinois Symbols
Indiana Symbols
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.