FrostList

Boat Winterization in Washington

In Washington, local boat deadlines run from Oct 9 to Dec 4, with a median around Nov 19 — a spread of weeks that a single statewide date would miss. Find your city below; each links to local freeze odds, a live 10-day outlook, and a checklist.

Covered boat locked in ice beside a dock on a frozen lake — winterize the engine before the first hard freeze catches it in the water — Washington deadlines city by city
Photo: Unsplash

Notable cities

All Washington cities

CityLocal deadlineMedian first 28°F
YakimaOct 9Oct 16View →Checklist
SpokaneOct 20Oct 27View →Checklist
Spokane ValleyOct 20Oct 27View →Checklist
OlympiaOct 25Nov 1View →Checklist
LaceyOct 25Nov 1View →Checklist
RichlandOct 28Nov 4View →Checklist
KennewickNov 4Nov 11View →Checklist
PascoNov 4Nov 11View →Checklist
PuyallupNov 7Nov 14View →Checklist
EverettNov 14Nov 21View →Checklist
BellinghamNov 14Nov 21View →Checklist
MarysvilleNov 14Nov 21View →Checklist
KentNov 17Nov 24View →Checklist
AuburnNov 17Nov 24View →Checklist
VancouverNov 19Nov 26View →Checklist
SammamishNov 22Nov 29View →Checklist
BremertonNov 23Nov 30View →Checklist
TacomaNov 24Dec 1View →Checklist
Federal WayNov 24Dec 1View →Checklist
SeattleNov 25Dec 2View →Checklist
RentonNov 29Dec 6View →Checklist
EdmondsNov 29Dec 6View →Checklist
BurienDec 3Dec 10View →Checklist
BellevueDec 4Dec 11View →Checklist
KirklandDec 4Dec 11View →Checklist
LakewoodDec 4Dec 11View →Checklist
RedmondDec 4Dec 11View →Checklist
ShorelineDec 4Dec 11View →Checklist
OctNovDecYakimaOct 9SpokaneOct 20Spokane ValleyOct 20OlympiaOct 25LaceyOct 25RichlandOct 28KennewickNov 4PascoNov 4PuyallupNov 7EverettNov 14BellinghamNov 14MarysvilleNov 14KentNov 17AuburnNov 17VancouverNov 19SammamishNov 22BremertonNov 23TacomaNov 24

Local boat winterization deadlines for Washington cities — built from each city’s own NOAA station, not one statewide date.

Boat Winterization in Washington: related searches

Washington homeowners search for: how to winterize a boat, winterize outboard motor, and "boat winterization near me" — every city page below answers those with local NOAA dates.

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Back to the national Boat Winterization guide, or see the methodology. You can also compare how the boat winterization window shifts in Virginia and West Virginia.

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 25, 2026.