For Degree Day we have terms and definitions in 6 topics. The topics are Car Care, Climatology, Energy, Geography, Uk Power and Weather.

Degree Day (Car Care)

A unit of temperature. Experience has shown that, for buildings requiring an inside temperature of approximately 70°F, the amount of fuel or heat used per day is proportional to the number of degrees the average outside temperature falls below 65°F. The degree-day is based upon this principle. The number of degree-day (65°F base) for a given period is the difference between 65°F and the United States Weather Bureau daily mean temperature, when the latter is less than 65°F, multiplied by the number of days.

Degree Day (Climatology)

A measure of the difference between the mean daily temperature and some given base temperature: one degree day is given for each degree (degree Celsius or degree Fahrenheit) of departure above (or below) the base temperature during one day

Degree Day (Energy)

A unit, based upon temperature difference and time, used in estimating fuel consumption and specifying nominal annual heating load of a building. When the mean temperature is less than 65 degrees Fahrenheit the heating degree days are equal to the total number of hours that temperature is less than 65 degrees Fahrenheit for an entire year.

Degree Day (Geography)

Deviation of one degree temperature for one day from an arbitrary standard, usually the long-term average temperature for a place.

Degree Day (Uk Power)

A measure of seasonal variation and intensity of temperature. In residential customer load, the more degree days in a year than the "average," the higher the electricity bill

Degree Day (Weather)

A measure of the departure of the mean daily temperature from a given standard. That is one degree day for each degree (Fahrenheit or Celsius) of departure above or below the standard during one day.
Related terms: cooling degree day and heating degree day

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