| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F |
| 2012 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 11 - Nov. 20 |
| Average Last Frost Date: | Mar. 21 - Mar. 31 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 63h - Carolina Flatwoods |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 29479 - Saint Stephen, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 34 | 36 | 43 | 49 | 58 | 66 | 70 | 69 | 64 | 52 | 43 | 36 | 52 |
| Avg Max Temp (°F) | 57 | 61 | 69 | 76 | 83 | 89 | 92 | 90 | 85 | 77 | 69 | 60 | 76 |
| Avg Precip (In.) | 4.52 | 3.43 | 4.2 | 3 | 3.72 | 5.24 | 5.49 | 6.08 | 4.93 | 3.23 | 2.62 | 3.56 | 50.02 |