PDFWAC 51-11C-30100

Section C301—Climate zones.

C301.1 General. Climate zones from Table C301.1 shall be used in determining the applicable requirements from Chapter 4.
Table C301.1
Climate Zones and Moisture Regimes
Designations by State and County
Key: A - Moist, B - Dry, C - Marine. Absence of moisture designation indicates moisture regime is irrelevant.
WASHINGTON
5B Adams
4C Grays Harbor
4C Pierce
5B Asotin
4C Island
4C San Juan
5B Benton
4C Jefferson
4C Skagit
5B Chelan
4C King
5B Skamania
4C Clallam
4C Kitsap
4C Snohomish
4C Clark
5B Kittitas
5B Spokane
5B Columbia
5B Klickitat
5B Stevens
4C Cowlitz
4C Lewis
4C Thurston
5B Douglas
5B Lincoln
4C Wahkiakum
5B Ferry
4C Mason
5B Walla Walla
5B Franklin
5B Okanogan
4C Whatcom
5B Garfield
4C Pacific
5B Whitman
5B Grant
5B Pend Oreille
5B Yakima
[Statutory Authority: RCW 19.27A.025, 19.27A.045, and 19.27.074. WSR 13-23-096, § 51-11C-30100, filed 11/20/13, effective 4/1/14. Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-30100, filed 2/1/13, effective 7/1/13.]