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Degree-days - U. S. Energy Information Administration (EIA) Heating degree days (HDDs) are a measure of how cold the temperature was on a given day or during a period of days For example, a day with a mean temperature of 40°F has 25 HDDs
Technical Documentation: Residential Energy Use A “degree day” indicates that the daily average outdoor temperature was one degree higher or lower than some comfortable baseline temperature on a particular day
U. S. Heating Degree-Days - The Engineering ToolBox The "Degree-Days" can be used to estimate buildings energy consumption for heating over a year Heating degree-day figures relates to a "base temperature" and provides a measure of how much (in degrees), and for how long (in days), the outside temperature was below that base temperature
Weekly and Monthly Heating Degree Day Data Heating Degree Days are a measure of the coldness of the weather experienced, based on the extent to which the daily mean temperature falls below a reference temperature (65° F)
What Are Heating and Cooling Degree Days - National Weather Service Degree days are based on the assumption that when the outside temperature is 65°F, we don't need heating or cooling to be comfortable Degree days are the difference between the daily temperature mean, (high temperature plus low temperature divided by two) and 65°F
ENERGY STAR Portfolio ManagerDegree Days Calculator This online calculator pulls weather station data--including heating and cooling degree days (HDD and CDD)--from weather stations in the United States and Canada
Heating degree day - Wikipedia Heating degree day (HDD) is a measurement designed to quantify the demand for energy needed to heat a building HDD is derived from measurements of outside air temperature
Technical Documentation: Heating and Cooling Degree Days This indicator measures annual average heating and cooling degree days nationwide and for each individual state The HDD and CDD data are based on time-bias adjusted temperature data from weather stations throughout the contiguous 48 states