FrostList

Car Battery Cold-Start in California

In California, local car battery deadlines run from Jan 1 to Dec 31, with a median around Dec 23 — 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 BernardinoJan 1Jan 1View →Checklist
Moreno ValleyJan 1Jan 1View →Checklist
RedlandsJan 1Jan 1View →Checklist
HighlandJan 1Jan 1View →Checklist
ColtonJan 1Jan 1View →Checklist
YucaipaJan 1Jan 1View →Checklist
VallejoJan 2Jan 2View →Checklist
San Luis ObispoJan 6Jan 6View →Checklist
San RamonJan 16Jan 16View →Checklist
DanvilleJan 16Jan 16View →Checklist
LancasterNov 10Nov 10View →Checklist
VictorvilleNov 24Nov 24View →Checklist
Apple ValleyNov 24Nov 24View →Checklist
PalmdaleDec 1Dec 1View →Checklist
ChicoDec 3Dec 3View →Checklist
ReddingDec 7Dec 7View →Checklist
PetalumaDec 9Dec 9View →Checklist
Rohnert ParkDec 9Dec 9View →Checklist
MartinezDec 9Dec 9View →Checklist
VacavilleDec 10Dec 10View →Checklist
MaderaDec 10Dec 10View →Checklist
TracyDec 11Dec 11View →Checklist
MercedDec 11Dec 11View →Checklist
GilroyDec 12Dec 12View →Checklist
Morgan HillDec 12Dec 12View →Checklist
HesperiaDec 14Dec 14View →Checklist
HanfordDec 14Dec 14View →Checklist
Santa RosaDec 16Dec 16View →Checklist
Elk GroveDec 16Dec 16View →Checklist
MantecaDec 16Dec 16View →Checklist
West SacramentoDec 16Dec 16View →Checklist
LivermoreDec 18Dec 18View →Checklist
PleasantonDec 18Dec 18View →Checklist
DavisDec 18Dec 18View →Checklist
WoodlandDec 18Dec 18View →Checklist
DublinDec 18Dec 18View →Checklist
SalinasDec 19Dec 19View →Checklist
NapaDec 19Dec 19View →Checklist
DelanoDec 19Dec 19View →Checklist
CampbellDec 19Dec 19View →Checklist
BakersfieldDec 20Dec 20View →Checklist
LodiDec 20Dec 20View →Checklist
ModestoDec 21Dec 21View →Checklist
HemetDec 21Dec 21View →Checklist
CeresDec 21Dec 21View →Checklist
San JacintoDec 21Dec 21View →Checklist
BeaumontDec 21Dec 21View →Checklist
Palo AltoDec 22Dec 22View →Checklist
RocklinDec 22Dec 22View →Checklist
LincolnDec 22Dec 22View →Checklist
StocktonDec 23Dec 23View →Checklist
OceansideDec 23Dec 23View →Checklist
ConcordDec 23Dec 23View →Checklist
CarlsbadDec 23Dec 23View →Checklist
PortervilleDec 23Dec 23View →Checklist
FresnoDec 24Dec 24View →Checklist
FairfieldDec 24Dec 24View →Checklist
ClovisDec 24Dec 24View →Checklist
TurlockDec 24Dec 24View →Checklist
Yuba CityDec 24Dec 24View →Checklist
San RafaelDec 24Dec 24View →Checklist
SacramentoDec 25Dec 25View →Checklist
VisaliaDec 25Dec 25View →Checklist
RosevilleDec 25Dec 25View →Checklist
Citrus HeightsDec 25Dec 25View →Checklist
FolsomDec 25Dec 25View →Checklist
Rancho CordovaDec 25Dec 25View →Checklist
TulareDec 25Dec 25View →Checklist
Simi ValleyDec 26Dec 26View →Checklist
Santa MonicaDec 26Dec 26View →Checklist
Redwood CityDec 26Dec 26View →Checklist
WatsonvilleDec 26Dec 26View →Checklist
Santa MariaDec 27Dec 27View →Checklist
MenifeeDec 27Dec 27View →Checklist
PerrisDec 27Dec 27View →Checklist
Santa CruzDec 27Dec 27View →Checklist
Lake ElsinoreDec 27Dec 27View →Checklist
Santa ClaraDec 28Dec 28View →Checklist
San LeandroDec 28Dec 28View →Checklist
AlamedaDec 28Dec 28View →Checklist
MilpitasDec 28Dec 28View →Checklist
RiversideDec 29Dec 29View →Checklist
FremontDec 29Dec 29View →Checklist
AntiochDec 29Dec 29View →Checklist
Union CityDec 29Dec 29View →Checklist
Walnut CreekDec 29Dec 29View →Checklist
PittsburgDec 29Dec 29View →Checklist
BrentwoodDec 29Dec 29View →Checklist
NovatoDec 29Dec 29View →Checklist
LompocDec 29Dec 29View →Checklist
OakleyDec 29Dec 29View →Checklist
CoronaDec 30Dec 30View →Checklist
El CajonDec 30Dec 30View →Checklist
VistaDec 30Dec 30View →Checklist
ChinoDec 30Dec 30View →Checklist
Chino HillsDec 30Dec 30View →Checklist
Yorba LindaDec 30Dec 30View →Checklist
La MesaDec 30Dec 30View →Checklist
SanteeDec 30Dec 30View →Checklist
EastvaleDec 30Dec 30View →Checklist
SunnyvaleDec 31Dec 31View →Checklist
Mountain ViewDec 31Dec 31View →Checklist
CupertinoDec 31Dec 31View →Checklist
El CentroDec 31Dec 31View →Checklist
CalexicoDec 31Dec 31View →Checklist

Back to the national Car Battery Cold-Start guide, or see the methodology.

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