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Article

Climate Zone Map Including Canada

Click either map to enlarge it.

Note that the continent-wide map fails to distinguish between Climate Zone 7 and Climate Zone 8. All of Alaska is in Zone 7 except for the following boroughs which are in Zone 8: Bethel, Dellingham, Fairbanks North Star, Nome, North Slope, Northwest Arctic, Southeast Fairbanks, Wade Hampton, and Yukon-Koyukuk.

Map credits:

Continental map is from GreenZone.com.

British Columbia map is from Illustrated Guide: Energy Efficiency Requirements for Houses in British Columbia.

Climate Zone map including Canada.jpg

Climate zone map for British Columbia.png

4 Comments

  1. dan7210329 | | #1

    A useful link to US Dept of Energy's Climate region by County:
    https://www.energy.gov/sites/prod/files/2015/10/f27/ba_climate_region_guide_7.3.pdf

  2. benniecwest | | #2

    Are the IECC climate zone maps available for purchase? If not, am I allowed to use the map for reference on a web site?

  3. Expert Member
    ARMANDO COBO | | #3

    You should be looking for the 2021 IRC figure N1101.7(R301.1). Many US counties changed CZs in this code cycle. You could call ICC Book Store and see if the offer your map separately from a code book.

  4. Jon_R | | #4

    Latest map and county list here:

    https://codes.iccsafe.org/content/IECC2021P1/chapter-3-ce-general-requirements

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