| | Port Royal, SC | Clemson, SC | United States |
| Rainfall | 47.7 | 51.5 | 38.1 |
| Snowfall | 0.1 | 1.8 | 27.8 |
| Precipitation Days | 104.5 | 108.2 | 106.2 |
| Sunny | 211 | 222 | 205 |
| Avg. July High | 91.1 | 89.9 | 85.8 |
| Avg. Jan. Low | 39.1 | 30.9 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.5 | 7 |
| UV Index | 5.5 | 4.4 | 4.3 |
| Elevation ft. | 23 | 725 | 2443 |