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Weather N/A

Crop Heat Units (CHUs) Corn 2025

Location Crop Heat Units as of May 1st 2025 CHU accumulation last year 
Harrow         1129 1316
Ridgetown        1057                                                                                1245
London        1038                  1220
Sarnia         950                                                         N/A 

Updated June 28, 2025 

Corn growth stage in our area ranges from V3 to V12 

Growing Degree Days Winter Wheat Development January 2025 and forward

Location Growing Degree Day accumulation as of January  1st 2025 GDD accumulation last year 
Harrow 1442 1651
Ridgetown 1339 1579
London 1285 1497
Sarnia 1287 N/A


 Updated June 28, 2025

 Takes 660 GDD to complete  grain fill. Length of grain fill depends on daily GDD. Early wheat is well into dough stage Zadoks 83

Might see harvest in Essex by July 10th based on current weather. 

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