Computing Freezing and Thawing Degree-Days from Monthly Temperatures

  1. (PDF, 1 MB)
DOIResolve DOI:
AuthorSearch for:
TypeTechnical Report
Series titleTechnical Paper, Division of Building Research, National Research Council Canada; Issue 444
Physical description25 p.
Subjectdegree-days; calculations; Building envelope
AbstractNormal freezing and thawing degree-days in change-over months can be computed with adequate accuracy from normal monthly average temperatures using the hyperbola: Y[2]-N(t- 32)Y=C. The positive value of Y is thawing degree-days and the negative value freezing degree-days; t is the average temperature in a month of N days, and C is a constant. The development of this equation and the reasons for rejecting alternatives are discussed in detail.
Publication date
PublisherNational Research Council Canada
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
NRC number14791
NPARC number20375506
Export citationExport as RIS
Report a correctionReport a correction
Record identifier2b959a93-8458-4fdf-99c2-f4089bba8b75
Record created2012-07-23
Record modified2017-05-23
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)