Illinois State Water Survey Illinois State Climatologist

Widespread Heavy Rain Expected this Week

The rain has finally moved into Illinois this morning. According to the National Weather Service, widespread heavy rain is expected to continue in Illinois over the next 3 days. Here is the forecast map for Tuesday morning showing a large storm moving across the central US. Rain is likely from the Gulf of Mexico all […]

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After Slow Start to Snow Season, Illinois Catching Up

After a slow start to the snowfall season in Illinois, we are now catching up. Heavy snow fell across northern Illinois over the weekend and more snow is arriving today. The Chicago NWS office has a nice write-up on the recent historic winter storm that stretched all the way across Illinois and into Indiana. We […]

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January 2015 in Illinois – Cool and Dry

January 2015 in Illinois was cooler and drier than average. The statewide temperature was 25.4 degrees, 1 degree below average and the 53rd coldest on record. However, it was not nearly as cold as last January when the average temperature was 19.3 degrees and ranked as the 16th coldest on record. The statewide average precipitation […]

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Friday Wrapup – Illinois Very Cold and Dry in November

So far, November has been much colder and drier than average. The statewide average temperature is 34.6 degrees, which is 9 degrees below average. The statewide average precipitation (rainfall + water content of snow) was only 0.6 inches, about a third of the average through this date. There have been astounding snowfall totals in places […]

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