Growing Degree Day Calculator

Supply the daily max and min instead of the mean, and the mean is their average.
Commonly 10 C or 50 F for maize, and 18.3 C or 65 F for heating and cooling degree days.
Caps the daily maximum before averaging, as many crop models require. 0 disables it.
Degree units for the day
15
Degree Day Calculator
Accumulated over the period
15
Mean temperature used
25
Type
growing degree days
Worked out from Growing degree days accumulate max(mean - base, 0); heating degree days accumulate max(base - mean, 0); cooling degree days accumulate max(mean - base, 0). and 1 other source.

How this is worked out

2 steps
  1. Mean temperature used: 25
  2. Degree units = max(mean - base, 0) = max(25 - 10, 0) = 15

Results are general information, not financial, tax, legal, medical or engineering advice.