Dorchester County, South Carolina
Local growing conditions for Dorchester County: the USDA hardiness zones found here, frost dates, and live weather for communities across the county. Based on 8 ZIP codes in our data.
Hardiness zones in Dorchester County
Dorchester County spans these USDA plant hardiness zones (by number of ZIP codes):
Local weather & frost dates
Open any community in Dorchester County for its live forecast, frost dates, and planting calendar:
Summerville 29483
North Charleston 29420
Harleyville 29437
Harleyville 29448
Reevesville 29471
Ridgeville 29472
St. George 29477
North Charleston 29485
More for South Carolina
- Agriculture in South Carolina
- Frost dates across South Carolina
- USDA hardiness zones explained
- Planting calendar by ZIP code
← All counties in South Carolina
County growing conditions are compiled from our ZIP-code database, USDA hardiness-zone data, and NOAA climate normals. Conditions vary within a county by elevation and local microclimate. Page updated Aug 4, 2026.