2014 Update to Climatic Data for Energy Standards Criteria Development: Part 2--Representative Weather Files.

Energy standards and codes, including ASHRAE/IES Standard 90.1 and ANSI/ASHRAE Standard 90.2, have used cooling degree-day (CDD) and heating degree-day (HDD) values, and representative weather files, in the development and specification of criteria. Since the selection ofthe previous CDD and HDD values and representative weather files in 2002, climate data has become available for a more-recent period of record and for a more-extensive set of U.S., Canadian, and other international locations. The CDD and HDD values for individual locations and the representative weather files for those locations have changed, in some cases, markedly. Consequently, it was necessary to update the CDD and HDD values and the representative weatherfiles being used for the development and specification of criteria. This is the second paper in a two-paper series. The first paper explains how the CDD and HDD baseline values were updated and provided those values for the various climate zones. This secondpaper explains the process used to select representative weather files for the various climate zones, including the use of the degree-day-radius metric and minimum population thresholds. This paper lists three sets ofrepresentative weather files: global, U.S., and Canadian. [ABSTRACT FROM AUTHOR]