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April Brought a Mix of Winter, Spring, and Summer Weather

The preliminary statewide average April temperature was 52.1 degrees, 0.5 degrees above the 1991–2020 average and tied for the 48th warmest on record going back to 1895. The preliminary statewide ...
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Mild March Was Quite a Contrast to February

The preliminary statewide average March temperature was 45.9 degrees, 4.5 degrees above the 1991–2020 average and the 13th warmest on record going back to 1895. Preliminary statewide average total March ...
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A Wild February Ended an Otherwise Mild Winter

Who ordered winter? The cold season came with a vengeance in February, bringing bitter cold and snow across the state. The preliminary statewide average February temperature was 20.0 degrees, 11.1 ...
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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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