Degree Day
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- A measure that gauges the amount of heating or cooling needed for a building using 65 degrees as a baseline. Electrical, natural gas, power, 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.
NOAA National Weather Service - Cite This Source - This Definition - C, CDD, Composite, Cooling Degree Days, Growing Degree Day, HDD, Heating Degree Days