Frost dates in Washington
13 cities · typical last spring freeze → typical first fall freeze (32°F, median of 1991–2020 normals)
SeattleMarch 13 → November 17SpokaneApril 26 → October 15TacomaMarch 8 → November 14VancouverMarch 13 → November 19BellevueMarch 13 → November 16KentMarch 20 → November 10EverettMarch 24 → November 2Spokane ValleyApril 26 → October 15RentonMarch 13 → November 16Federal WayMarch 8 → November 14YakimaApril 8 → October 23BellinghamApril 1 → November 2KirklandMarch 8 → November 23