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25th Anniversary of the 1995 Chicago Heat Wave

This week marks the 25th anniversary of the July 1995 heat wave in Chicago, one of the worst weather-related disasters in Illinois history. The excessive heat and humidity, compounded by ...
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A Mostly Warm, Dry Start to Summer

June was warmer and drier than average across the state. The preliminary statewide average June temperature was 73.7 degrees, 1.8 degrees above the 30-year normal and tied for the 26th ...
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Very Dry June (so far)

Four out of the first five months of 2020 have been wetter than normal. As the map below shows, most of the state, entered June with a calendar year precipitation ...
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Cool, Wet May ends Wet Spring

May was much colder and moderately wetter than average across Illinois, bringing an end to a wet climatological spring season. The preliminary statewide average May temperature was 60.5 degrees, 2.2 ...
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The Dry April That Wasn’t

April ended colder and wetter than average across the state. The preliminary statewide average April temperature was 49.2 degrees, 3.4 degrees below the 30-year normal and tied for the 27th ...
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