Washington frost dates: S

City	Last frost	First frost	Season	Zone
Saint John	Apr 29	Oct 4	158 d	6b
Salkum	Apr 7	Nov 13	220 d	8b
Sammamish	Mar 30	Nov 7	222 d	8b
Satsop	May 1	Oct 14	166 d	8b
Seabeck	Mar 29	Nov 14	230 d	8b
Seahurst	Mar 2	Nov 23	266 d	9a
Seattle	Mar 13	Nov 17	249 d	9a
Seaview	Apr 6	Oct 26	203 d	9a
Sedro Woolley	Mar 27	Nov 6	224 d	8b
Sekiu	Apr 26	Oct 25	182 d	9a
Selah	May 5	Oct 4	152 d	7a
Sequim	Apr 21	Oct 20	182 d	8b
Shaw Island	Mar 26	Nov 10	229 d	9a
Shelton	Apr 27	Oct 16	172 d	8b
Silvana	Apr 22	Oct 19	180 d	8b
Silver Creek	Apr 7	Nov 13	220 d	8b
Silverdale	Mar 29	Nov 14	230 d	8b
Silverlake	Apr 5	Oct 25	203 d	8b
Skamokawa	Apr 27	Oct 22	178 d	8b
Skykomish	Apr 14	Oct 29	198 d	8a
Snohomish	Apr 17	Oct 23	189 d	8b
Snoqualmie	Mar 30	Nov 7	222 d	8b
Snoqualmie Pass	May 14	Oct 17	156 d	7a
Soap Lake	Apr 22	Oct 17	178 d	7a
South Bend	Apr 26	Oct 17	174 d	9a
South Cle Elum	May 13	Sep 25	135 d	7a
South Colby	Mar 29	Nov 14	230 d	9a
South Prairie	Apr 7	Oct 30	206 d	8b
Southworth	Mar 13	Nov 17	249 d	9a
Spanaway	Apr 11	Oct 30	202 d	8b
Spangle	May 30	Sep 4	97 d	6b
Spokane	Apr 26	Oct 15	172 d	7a
Sprague	May 31	Sep 12	104 d	6b
Springdale	May 22	Sep 14	115 d	6b
Stanwood	Apr 22	Oct 19	180 d	8b
Starbuck	Apr 28	Oct 13	168 d	7b
Startup	Apr 15	Oct 25	193 d	8b
Stehekin	Apr 27	Oct 17	173 d	6b
Steilacoom	Mar 11	Nov 21	255 d	8b
Steptoe	Apr 29	Oct 4	158 d	6b
Stevenson	Mar 24	Nov 20	241 d	8a
Stratford	Apr 22	Oct 17	178 d	6b
Sultan	Apr 15	Oct 25	193 d	8b
Sumas	Apr 18	Oct 18	183 d	8a
Sumner	Apr 11	Oct 30	202 d	8b
Sunnyside	May 1	Oct 6	158 d	7b
Suquamish	Mar 29	Nov 14	230 d	9a