Cooling Degree Days - A form of degree-day used to estimate energy requirements for air conditioning or refrigeration.
Total cooling degree days. 106
Total heating degree days. 54
Thunderstorms occurred 5 days. On the 2nd., 7th., 25th., 27th., & 30th.
A trace of snow occurred on the 2nd. as 1/4" hail. "Melted as it fell".
For more specific definitions and how to calculate degree days, see the definitions for Heating Degree Days and Cooling Degree Days.
Each issue also contains monthly summaries for heating and cooling degree days (65 degrees F base). The July issue also contains monthly heating degree days and snow data for the preceding July through June.
If the difference is positive, it is called a "Cooling Degree Days". If the difference is negative, it is called a "Heating Degree Days". The magnitude of the difference is the number of days.
Heating degree days are summations of negative differences between the mean daily temperature and the 18 °C base; cooling degree days are summations of positive differences from the same base.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: CDD, Composite, Cooling Degree Days, Degree Day, Growing Degree Day, HDD, Heating Degree Days
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Degree Day- a measure of the departure of the daily mean temperature from the normal daily temperature; heating and cooling Degree Days are the departure of the daily mean temperature from sixty-five degrees Fahrenheit.
and heating, and air conditioning industries utilize heating and cooling degree information to calculate their needs. For more specific definitions and how to calculate degree days, see the definitions for Heating Degree Days and Cooling Degree Days.
 See also: Degree day, Degree, Weather, Cooling Degree Day, Temperature
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