Frost dates in Kitsap County, Washington

Evergreen forest with snowy peaks behind in Mount Rainier National Park, Washington — Photo: Kingofthedead, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in Kitsap County falls Mar 8 to Mar 29 and the average first fall frost Nov 14 to Nov 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 8b to 9a. Places: Bainbridge Island, Bangor Base, Bremerton, Burley, Hansville, Indianola. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIP	Place	Last spring frost	First fall frost	Zone
98110	Bainbridge Island	Mar 29	Nov 14	9a
98310	Bremerton	Mar 29	Nov 14	8b
98311	Tracyton	Mar 29	Nov 14	9a
98312	Bremerton	Mar 29	Nov 14	8b
98314	Bremerton	Mar 29	Nov 14	9a
98315	Bangor Base	Mar 29	Nov 14	8b
98337	Bremerton	Mar 29	Nov 14	9a
98340	Hansville	Mar 9	Nov 17	8b
98342	Indianola	Mar 8	Nov 23	9a
98345	Keyport	Mar 29	Nov 14	9a
98346	Port Gamble Tribal Community	Mar 9	Nov 17	9a
98353		Mar 13	Nov 17	9a
98359	Burley	Mar 29	Nov 14	8b
98364		Mar 9	Nov 17	9a
98366	Port Orchard	Mar 29	Nov 14	9a
98367	Port Orchard	Mar 29	Nov 14	8b
98370	Suquamish	Mar 29	Nov 14	8b
98380	Seabeck	Mar 29	Nov 14	8b
98383	Silverdale	Mar 29	Nov 14	8b
98392	Suquamish	Mar 29	Nov 14	9a

Nearby counties

King County Jefferson County Mason County Snohomish County Island County Pierce County

All Washington counties · Download Washington frost dates (CSV)

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