RV Winterization in New Hampshire

In New Hampshire, local rv deadlines run from Oct 3 to Oct 14, with a median around Oct 14 — 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.

Motorhome parked on a snowy street in falling snow — drain and antifreeze the water system before the first hard freeze — New Hampshire deadlines city by city — Photo: Arlind Photography / Unsplash

Jump to a city

Notable cities

Concord — earliest deadline in the state
Nashua — latest deadline in the state
Manchester — near the state median

All New Hampshire cities

City	Local deadline	Median first 28°F
Concord	Oct 3	Oct 13	View →	Checklist
Manchester	Oct 14	Oct 24	View →	Checklist
Nashua	Oct 14	Oct 24	View →	Checklist

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

RV Winterization in New Hampshire: related searches

New Hampshire homeowners search for: RV winterization checklist, how to winterize a camper, and "rv winterization near me" — every city page below answers those with local NOAA dates.

RV winterization checklisthow to winterize a camperRV antifreeze how many gallonswater heater bypass RVblow out RV water linesnon-toxic RV antifreezeRV low point drainwinterize travel trailer

Back to the national RV Winterization guide, or see the methodology. You can also compare how the rv winterization window shifts in Nevada and New Jersey.

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