Car Battery Cold-Start in Maryland

In Maryland, local car battery deadlines run from Nov 1 to Dec 5, 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.

Frost-covered car with headlights on during a freezing morning — cold weather exposes weak car batteries — Maryland deadlines city by city — Photo: Aneesh Prodduturu / Pexels

Jump to a city

Notable cities

Bowie — earliest deadline in the state
Baltimore — latest deadline in the state
Rockville — near the state median

All Maryland cities

City	Local deadline	Median first 28°F
Bowie	Nov 1	Nov 1	View →	Checklist
Hagerstown	Nov 9	Nov 9	View →	Checklist
Gaithersburg	Nov 19	Nov 19	View →	Checklist
Rockville	Nov 19	Nov 19	View →	Checklist
Frederick	Nov 21	Nov 21	View →	Checklist
Annapolis	Nov 28	Nov 28	View →	Checklist
Baltimore	Dec 5	Dec 5	View →	Checklist

Local car battery cold-start deadlines for Maryland cities — built from each city’s own NOAA station, not one statewide date.

Car Battery Cold-Start in Maryland: related searches

Maryland homeowners search for: car battery cold weather, cold cranking amps (CCA), and "car battery cold-start near me" — every city page below answers those with local NOAA dates.

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Back to the national Car Battery Cold-Start guide, or see the methodology. You can also compare how the car battery cold-start window shifts in Maine and Massachusetts.

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