Growing Degree Day Calculations

Growing Degree Days
Station: Arlington

Data available starting from 2023-08-09

Biofix Date¹:

End Date:

Lower Temperature Threshold:

Upper Temperature Threshold²:

Biofix dates are usually based on specific biological events such as planting dates, first trap catch, or first occurrence of a pest. Models with biofix dates other than Jan 1 are probably less reliable and the biofix may need to be adjusted to match an observed event such as the appearance of egg masses.
Leave upper threshold blank if there is no upper threshold
About Growing Degree Day calculations
About GDD methods: simple averaging vs. sine wave method

Data Notes

GDD_Simple: Daily growing degree days calculated using the simple averaging method.
GDD_Sine: Daily growing degree days calculated using the sine curve method.
GDD_Simple_cumulative: Cumulative growing degree days for simple averaging method.
GDD_Sine_cumulative: Cumulative growing degree days for the sine curve method.

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