Ice Dam Prevention in Virginia
In Virginia, local ice dams deadlines run from Nov 15 to Dec 16, with a median around Nov 15 — 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
- Norfolk — earliest deadline in the state
- Suffolk — latest deadline in the state
- Harrisonburg — near the state median
All Virginia cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Norfolk | Nov 15 | Dec 1 | View → | Checklist |
| Chesapeake | Nov 15 | Dec 1 | View → | Checklist |
| Richmond | Nov 15 | Nov 15 | View → | Checklist |
| Alexandria | Nov 15 | Nov 19 | View → | Checklist |
| Roanoke | Nov 15 | Nov 12 | View → | Checklist |
| Portsmouth | Nov 15 | Dec 1 | View → | Checklist |
| Lynchburg | Nov 15 | Nov 3 | View → | Checklist |
| Harrisonburg | Nov 15 | Nov 1 | View → | Checklist |
| Leesburg | Nov 15 | Nov 5 | View → | Checklist |
| Charlottesville | Nov 15 | Nov 14 | View → | Checklist |
| Blacksburg | Nov 15 | Oct 29 | View → | Checklist |
| Danville | Nov 15 | Nov 10 | View → | Checklist |
| Manassas | Nov 15 | Nov 5 | View → | Checklist |
| Virginia Beach | Dec 16 | Nov 25 | View → | Checklist |
| Suffolk | Dec 16 | Dec 1 | View → | Checklist |
Back to the national Ice Dam Prevention guide, or see the methodology.
Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.