Illinois State Climatologist

The preliminary statewide average August temperature was 75.6 degrees, 2 degrees above the 1991–2020 average and tied for the 20th warmest on record going back to 1895. The preliminary statewide ...
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The preliminary statewide average July temperature was 74.6 degrees, 0.8 degrees below the 1991–2020 average and tied for the 45th coldest on record going back to 1895. The preliminary statewide ...
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June took a page out of March’s playbook—came in like a lamb and went out like a lion. Overall, the preliminary statewide average June temperature was 73.8 degrees, 1.6 degrees ...
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A warm and dry first half of June has persisted or worsened drought conditions in northern Illinois. Here is an update of current conditions and a look ahead into this ...
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As the western U.S. fights record drought conditions, northern Illinois has endured a significant dry spell of its own. Here is an update of current conditions and a look ahead ...
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