Sprinkler Winterization in South Carolina
In South Carolina, local sprinklers deadlines run from Nov 1 to Dec 29, with a median around Nov 22 — 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
- Spartanburg — earliest deadline in the state
- Charleston — latest deadline in the state
- Columbia — near the state median
All South Carolina cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Spartanburg | Nov 1 | Nov 11 | View → | Checklist |
| Rock Hill | Nov 8 | Nov 18 | View → | Checklist |
| Sumter | Nov 11 | Nov 21 | View → | Checklist |
| Greenville | Nov 12 | Nov 22 | View → | Checklist |
| Florence | Nov 17 | Nov 27 | View → | Checklist |
| Summerville | Nov 19 | Nov 29 | View → | Checklist |
| Columbia | Nov 22 | Dec 2 | View → | Checklist |
| North Charleston | Dec 5 | Dec 15 | View → | Checklist |
| Goose Creek | Dec 5 | Dec 15 | View → | Checklist |
| Mount Pleasant | Dec 6 | Dec 16 | View → | Checklist |
| Hilton Head Island | Dec 18 | Dec 28 | View → | Checklist |
| Charleston | Dec 29 | Jan 8 | View → | Checklist |
Back to the national Sprinkler Winterization guide, or see the methodology.
Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.