| 2023 Hardiness Zone: | Zone 8b: 15°F to 20°F Zone 8a: 10°F to 15°F |
| 2012 Hardiness Zone: | Zone 8a: 10°F to 15°F |
| 1990 Hardiness Zone: | Zone 8a: 10F to 15F |
| Average First Frost Date: | Nov. 1 - Nov. 10 |
| Average Last Frost Date: | Apr. 1 - Apr. 10 |
| Koppen-Geiger Climate Zone: | Cfa - Humid Subtropical Climate |
| Ecoregion: | 65l - Vidalia Upland |
| Heat Zone Days: | 91 - 120 days Over 86°F |
Annual Climate Data for ZIP Code 29160 - Swansea, SC | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg Min Temp (°F) | 33 | 36 | 43 | 49 | 58 | 66 | 70 | 69 | 63 | 51 | 42 | 36 | 51 |
| Avg Max Temp (°F) | 56 | 61 | 69 | 77 | 84 | 89 | 92 | 90 | 85 | 76 | 67 | 59 | 75 |
| Avg Precip (In.) | 4.73 | 3.91 | 4.58 | 3.02 | 3.29 | 5 | 5.27 | 5.2 | 4.12 | 3.08 | 3.01 | 3.47 | 48.67 |