Illinois State Water Survey Illinois State Climatologist

Illinois Soil Temperatures – Then and Now

You can find 4 and 8-inch soil temperatures for Illinois on the Water Survey’s web site at www.isws.illinois.edu/warm/soiltemp.asp. These data are from a network of 19 sites around Illinois that is maintained by the Survey. Below are the maps of what the 4-inch soil temperatures looked like on Wednesday and a year ago on the same […]

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March Off to Cold, Wet Start

So far, March has been both colder than average across all of Illinois and wetter than average across western and northern Illinois. The statewide temperature for March 1-14 was 32.5 degrees, 5.4 degrees below average. That stands in stark contrast to last March when the statewide temperature for March 1-14 was 45.2 degrees, 7.3 degrees […]

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April Colder Than March – A Rare Case

Temperature The statewide average temperature for April 2012 was 54.1 degrees, based on available data. The statewide average temperature for March was 55.0 degrees, based on the latest numbers from NOAA.  That means that April was almost a degree cooler than March. What makes this even more impressive was that the April temperatures are still 2.4 degrees above […]

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