Annual Total Degree Days Below 18C: 1961 to 2000

 
 
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 Degree days below 18C are used to estimate the energy needed to maintain a comfortable temperature in a building. Annual total degree days below 18C vary from less than 5,000 in southern Alberta to more than 7,500 in the northern part of the province. Annual total degree days below 18C increase with both latitude and elevation in Alberta.

The distribution shown on these maps is very similar to the distribution of January daily mean temperatures. Since January is one of the coldest months of the year in Alberta, the similar pattern is an indication of the strong link between January daily mean temperatures and heating degree days.


 
 
 
 
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For more information about the content of this document, contact Ralph Wright.
This document is maintained by Laura Thygesen.
This information published to the web on April 4, 2003.
Last Reviewed/Revised on May 16, 2017.