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Degree Days (Heat Units)

Hand Calculating Degree Days

This quick answer describes a method to determine degree days using simple hand calculations and a table.  The single sine wave method is used. 

Degree Days Using the Single Sine Method

This quick answer describes a computer program  to determine degree days using the single sine wave method. 

Degree Days Application Program (11 Apr 2005)

This quick answer describes the DEGDAY.XLS Excel application program for calculating degree days using the single sine wave method and the single triangle method.  The application program can be downloaded from the quick answer.