Ice Dam Prevention in New Hampshire
In New Hampshire, local ice dams deadlines run from Oct 16 to Oct 16, with a median around Oct 16 — 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
- Manchester — earliest deadline in the state
- Concord — latest deadline in the state
- Nashua — near the state median
All New Hampshire cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Manchester | Oct 16 | Oct 24 | View → | Checklist |
| Nashua | Oct 16 | Oct 24 | View → | Checklist |
| Concord | Oct 16 | Oct 13 | View → | Checklist |
Local ice dam prevention deadlines for New Hampshire cities — built from each city’s own NOAA station, not one statewide date.
Ice Dam Prevention in New Hampshire: related searches
New Hampshire homeowners search for: ice dam removal cost, ice dam steaming, and "ice dam prevention near me" — every city page below answers those with local NOAA dates.
Back to the national Ice Dam Prevention guide, or see the methodology. You can also compare how the ice dam prevention 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.