FrostList

Boat Winterization in California

In California, local boat deadlines run from Jan 9 to Dec 30, with a median around Dec 17 — 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.

Notable cities

All California cities

CityLocal deadlineMedian first 28°F
San RamonJan 9Jan 16View →Checklist
DanvilleJan 9Jan 16View →Checklist
LancasterNov 3Nov 10View →Checklist
VictorvilleNov 17Nov 24View →Checklist
Apple ValleyNov 17Nov 24View →Checklist
PalmdaleNov 24Dec 1View →Checklist
ChicoNov 26Dec 3View →Checklist
ReddingNov 30Dec 7View →Checklist
PetalumaDec 2Dec 9View →Checklist
Rohnert ParkDec 2Dec 9View →Checklist
MartinezDec 2Dec 9View →Checklist
VacavilleDec 3Dec 10View →Checklist
MaderaDec 3Dec 10View →Checklist
TracyDec 4Dec 11View →Checklist
MercedDec 4Dec 11View →Checklist
GilroyDec 5Dec 12View →Checklist
Morgan HillDec 5Dec 12View →Checklist
HesperiaDec 7Dec 14View →Checklist
HanfordDec 7Dec 14View →Checklist
Santa RosaDec 9Dec 16View →Checklist
Elk GroveDec 9Dec 16View →Checklist
MantecaDec 9Dec 16View →Checklist
West SacramentoDec 9Dec 16View →Checklist
LivermoreDec 11Dec 18View →Checklist
PleasantonDec 11Dec 18View →Checklist
DavisDec 11Dec 18View →Checklist
WoodlandDec 11Dec 18View →Checklist
DublinDec 11Dec 18View →Checklist
SalinasDec 12Dec 19View →Checklist
NapaDec 12Dec 19View →Checklist
DelanoDec 12Dec 19View →Checklist
CampbellDec 12Dec 19View →Checklist
BakersfieldDec 13Dec 20View →Checklist
LodiDec 13Dec 20View →Checklist
ModestoDec 14Dec 21View →Checklist
HemetDec 14Dec 21View →Checklist
CeresDec 14Dec 21View →Checklist
San JacintoDec 14Dec 21View →Checklist
BeaumontDec 14Dec 21View →Checklist
Palo AltoDec 15Dec 22View →Checklist
RocklinDec 15Dec 22View →Checklist
LincolnDec 15Dec 22View →Checklist
StocktonDec 16Dec 23View →Checklist
OceansideDec 16Dec 23View →Checklist
ConcordDec 16Dec 23View →Checklist
CarlsbadDec 16Dec 23View →Checklist
PortervilleDec 16Dec 23View →Checklist
FresnoDec 17Dec 24View →Checklist
FairfieldDec 17Dec 24View →Checklist
ClovisDec 17Dec 24View →Checklist
TurlockDec 17Dec 24View →Checklist
Yuba CityDec 17Dec 24View →Checklist
San RafaelDec 17Dec 24View →Checklist
SacramentoDec 18Dec 25View →Checklist
VisaliaDec 18Dec 25View →Checklist
RosevilleDec 18Dec 25View →Checklist
Citrus HeightsDec 18Dec 25View →Checklist
FolsomDec 18Dec 25View →Checklist
Rancho CordovaDec 18Dec 25View →Checklist
TulareDec 18Dec 25View →Checklist
Simi ValleyDec 19Dec 26View →Checklist
Santa MonicaDec 19Dec 26View →Checklist
Redwood CityDec 19Dec 26View →Checklist
WatsonvilleDec 19Dec 26View →Checklist
Santa MariaDec 20Dec 27View →Checklist
MenifeeDec 20Dec 27View →Checklist
PerrisDec 20Dec 27View →Checklist
Santa CruzDec 20Dec 27View →Checklist
Lake ElsinoreDec 20Dec 27View →Checklist
Santa ClaraDec 21Dec 28View →Checklist
San LeandroDec 21Dec 28View →Checklist
AlamedaDec 21Dec 28View →Checklist
MilpitasDec 21Dec 28View →Checklist
RiversideDec 22Dec 29View →Checklist
FremontDec 22Dec 29View →Checklist
AntiochDec 22Dec 29View →Checklist
Union CityDec 22Dec 29View →Checklist
Walnut CreekDec 22Dec 29View →Checklist
PittsburgDec 22Dec 29View →Checklist
BrentwoodDec 22Dec 29View →Checklist
NovatoDec 22Dec 29View →Checklist
LompocDec 22Dec 29View →Checklist
OakleyDec 22Dec 29View →Checklist
CoronaDec 23Dec 30View →Checklist
El CajonDec 23Dec 30View →Checklist
VistaDec 23Dec 30View →Checklist
ChinoDec 23Dec 30View →Checklist
Chino HillsDec 23Dec 30View →Checklist
Yorba LindaDec 23Dec 30View →Checklist
La MesaDec 23Dec 30View →Checklist
SanteeDec 23Dec 30View →Checklist
EastvaleDec 23Dec 30View →Checklist
SunnyvaleDec 24Dec 31View →Checklist
Mountain ViewDec 24Dec 31View →Checklist
CupertinoDec 24Dec 31View →Checklist
El CentroDec 24Dec 31View →Checklist
CalexicoDec 24Dec 31View →Checklist
San BernardinoDec 25Jan 1View →Checklist
Moreno ValleyDec 25Jan 1View →Checklist
RedlandsDec 25Jan 1View →Checklist
HighlandDec 25Jan 1View →Checklist
ColtonDec 25Jan 1View →Checklist
YucaipaDec 25Jan 1View →Checklist
VallejoDec 26Jan 2View →Checklist
San Luis ObispoDec 30Jan 6View →Checklist

Back to the national Boat Winterization guide, or see the methodology.

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.