Frozen Pipe Protection in New Hampshire

In New Hampshire, local frozen pipes deadlines run from Sep 21 to Sep 30, with a median around Sep 30 — 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.

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	Sep 21	Oct 13	View →	Checklist
Manchester	Sep 30	Oct 24	View →	Checklist
Nashua	Sep 30	Oct 24	View →	Checklist

Back to the national Frozen Pipe Protection guide, or see the methodology.

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