Deconstruct SunSouth Carolina Hardiness Zones
South Carolina covers USDA plant hardiness zones 7b to 9a on the 2023 map, so its coldest areas average 5 to 10 °F on the coldest winter night. Find your zone by ZIP code, or pick a city below for its zone, sunrise and daylight by month.
South Carolina hardiness zone map
This is not the official USDA Plant Hardiness Zone Map. Zones are derived from the official 2023 dataset, resampled to about 2 km. Dots mark cities with their own page.
Source: USDA Plant Hardiness Zone Map, 2023. Agricultural Research Service, U.S. Department of Agriculture, planthardiness.ars.usda.gov. Underlying data © PRISM Group, Oregon State University, prism.oregonstate.edu, accessed 2026-08-30.
Zones and daylight by city
| City | Zone | Coldest night | Longest day | Shortest day |
|---|---|---|---|---|
| Charleston | 9a | 20 to 25 °F | 14h 19m | 9h 59m |
| Columbia | 8b | 15 to 20 °F | 14h 26m | 9h 53m |
| North Charleston | 9a | 20 to 25 °F | 14h 20m | 9h 59m |
| Mount Pleasant | 9a | 20 to 25 °F | 14h 19m | 9h 59m |
| Greenville | 8a | 10 to 15 °F | 14h 30m | 9h 49m |
| Rock Hill | 8a | 10 to 15 °F | 14h 30m | 9h 48m |
| Myrtle Beach | 8b | 15 to 20 °F | 14h 24m | 9h 55m |
| Spartanburg | 8a | 10 to 15 °F | 14h 31m | 9h 48m |
| Hilton Head Island | 9b | 25 to 30 °F | 14h 16m | 10h 02m |
Gardening in South Carolina?
Your zone says what survives winter. Deconstruct Sun measures how many hours of direct sun your exact spot gets, so you can pick plants that thrive. Free on iPhone.
Questions
What hardiness zones are in South Carolina?
South Carolina spans USDA zones 7b to 9a on the 2023 map. Among its larger cities, Greenville is coldest (zone 8a) and Hilton Head Island is warmest (zone 9b).
How do I find my exact zone in South Carolina?
Enter your ZIP code in the hardiness zone lookup on this site. It reads the 2023 USDA data for that ZIP and warns you if you are near a zone boundary.
How much sun do gardens in South Carolina get?
In Charleston, an open spot gets up to 14.3 hours of daylight in June but only 10.0 in December. Trees and buildings cut that down, especially in winter. The Deconstruct Sun app measures the real direct-sun hours for one exact spot.