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Warm and Dry September Extended Summer

The preliminary statewide average September temperature was 69.4 degrees, 2.6 degrees above the 1991–2020 average, and tied for the 21st warmest on record going back to 1895. The preliminary statewide ...
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Hot and Stormy End to Summer

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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July Brought High Humidity and Above Average Rainfall

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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A Bit of Everything to Start Summer

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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Update to Northern Illinois Drought

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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