Growing Degree Days  
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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.

Choose a Base Temperature (Crop)

50° (Corn)
40° (Cold Weather Crops)



Input a planting date (mm/dd):





To view maps of degree-day totals
click here.

Click the nearest station (dot).

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All files and information © 2009 Illinois State Water Survey. Terms of use.
Send comments and suggestions to Bob Scott.
Last Modified: July 24, 2008