Illinois Climate Network: Crop Degree-Day Calculator, Illinois State Water Survey

Water and Atmospheric Resources Monitoring Program (WARM)

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Illinois Climate Network: Crop Degree-Day Calculator

Choose a base temperature corresponding to a particular crop, 50° F for corn and 40° F for colder crops. Next, select a station nearest your point of interest, and input a planting date. Click "CALCULATE" to see the relevant degree-day accumulation for your area.

Click the nearest station (dot).
Illinois Map Freeport DeKalb St. Charles Stelle Champaign Bondville Peoria Monmouth Snicarte Perry Springfield Brownstown Carbondale Dixon Springs Fairfield Olney Rend Lake Belleville Big Bend
Choose a Base Temperature (Crop)

bullet 50° (Corn)
bullet 40° (Cold Weather Crops)

Input a planting date (mm/dd):


For regional growing degree day maps, visit the Midwest Climate Watch.

Illinois State Water Survey

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Champaign, IL 61820-7463
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