GDU Calculator — Growing Degree Units

GDU Calculator

Compute Growing Degree Units using daily temperatures and base thresholds

Note: Typical corn base temperature is 50°F with an upper cap near 86°F.

Temperature Inputs

Daily GDU
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Total GDU
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Average Temperature Used
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GDU = max(0, ((min(Tmax, cap) + max(Tmin, base)) ÷ 2) − base)
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