Cooling Degree Day (CDD)

Difference between the actual temperature, as determined by the average of the high and low daily temperatures, and 65 degrees F. For example, if the daily high temperature is 77 degrees and the daily low is 65 degrees, the actual temperature for that day would be 71 degrees. The CDD’s for that day would be 6 (71-65). If the average temperature is less than or equal to 65 degrees, the CDD’s for the day would be zero

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