Ice Dam Prevention in Missouri
In Missouri, local ice dams deadlines run from Oct 16 to Nov 15, 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
- Independence — earliest deadline in the state
- Cape Girardeau — latest deadline in the state
- O'Fallon — near the state median
All Missouri cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Independence | Oct 16 | Nov 5 | View → | Checklist |
| Lee's Summit | Oct 16 | Nov 3 | View → | Checklist |
| St. Joseph | Oct 16 | Oct 26 | View → | Checklist |
| Blue Springs | Oct 16 | Nov 7 | View → | Checklist |
| Kansas City | Nov 15 | Nov 11 | View → | Checklist |
| St. Louis | Nov 15 | Nov 15 | View → | Checklist |
| Springfield | Nov 15 | Nov 7 | View → | Checklist |
| Columbia | Nov 15 | Nov 9 | View → | Checklist |
| O'Fallon | Nov 15 | Nov 5 | View → | Checklist |
| St. Charles | Nov 15 | Nov 10 | View → | Checklist |
| St. Peters | Nov 15 | Nov 5 | View → | Checklist |
| Florissant | Nov 15 | Nov 13 | View → | Checklist |
| Joplin | Nov 15 | Nov 4 | View → | Checklist |
| Chesterfield | Nov 15 | Nov 8 | View → | Checklist |
| Jefferson City | Nov 15 | Nov 8 | View → | Checklist |
| Cape Girardeau | Nov 15 | Nov 4 | 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.