Illinois State Climatologist

From the National Weather Service Record of Days At or Above 80 Degrees for Chicagoland THE PREVIOUS RECORD FOR CONSECUTIVE 80 DEGREE OR ABOVE DAYS WAS 42 DAYS IN A ...
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The state-wide temperature in Illinois for the first half of August (August 1-15) was 79.5 degrees, 5.7 degrees above normal. That should come as no surprise to anyone who experience ...
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While this summer has been hot and humid, it pales in comparison to the hottest month in Illinois history - July 1936. Here are the records from July of that ...
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While much attention has been given to the areas of heavy rain in Illinois, there were two areas of significant dryness in the state in July. A product from the ...
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Here are the thumbnail maps (click to enlarge) of July temperature departures, and July rainfall and rainfall departures. It was warmer than normal across much of eastern Corn Belt. It ...
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