Ice Dam Prevention in Oregon
In Oregon, local ice dams deadlines run from Oct 16 to Dec 16, with a median around Dec 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
- Bend — earliest deadline in the state
- Lake Oswego — latest deadline in the state
- Beaverton — near the state median
All Oregon cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Bend | Oct 16 | Oct 4 | View → | Checklist |
| Gresham | Nov 15 | Dec 15 | View → | Checklist |
| Portland | Dec 16 | Dec 20 | View → | Checklist |
| Beaverton | Dec 16 | Dec 21 | View → | Checklist |
| Medford | Dec 16 | Nov 13 | View → | Checklist |
| Tigard | Dec 16 | Nov 30 | View → | Checklist |
| Lake Oswego | Dec 16 | Dec 8 | View → | Checklist |
Local ice dam prevention deadlines for Oregon cities — built from each city’s own NOAA station, not one statewide date.
Ice Dam Prevention in Oregon: related searches
Oregon 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 Oklahoma and Pennsylvania.
Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 25, 2026.