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Mostly Mild January Ends with a Bang

Our first month of 2021 was quite a bit warmer and slightly wetter than average across the state. The preliminary statewide average January temperature was 28.8 degrees, 2.4 degrees above ...
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2020 was Warmer and Wetter than Long-term Average

Illinois was both warmer and wetter than average in 2020. The statewide average yearly temperature was 53.3 degrees, 1.7 degrees above average and the 21st warmest year on record. Statewide ...
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Warm, Dry End to 2020

December was much warmer and drier than average across Illinois. The preliminary statewide average December temperature was 32.8 degrees, 2.9 degrees above the 30-year normal and tied for the 35th ...
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November brings a warm end to Fall

November was much warmer and slightly drier than average across Illinois. The preliminary statewide average November temperature was 46.6 degrees, 4.1 degrees above the 30-year normal and tied for the ...
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Cool Fall Temperatures Continued in October

October was much cooler and slightly drier than average across Illinois. The preliminary statewide average October temperature was 51.8 degrees, 2.6 degrees below the 30-year normal, and tied for the ...
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