| | Awendaw, SC | Union, SC | United States |
| Rainfall | 49.2 | 44.7 | 38.1 |
| Snowfall | 0.2 | 2.2 | 27.8 |
| Precipitation Days | 111.3 | 102.4 | 106.2 |
| Sunny | 212 | 224 | 205 |
| Avg. July High | 89.2 | 91.4 | 85.8 |
| Avg. Jan. Low | 38.2 | 29.9 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.5 | 7 |
| UV Index | 5.1 | 4.8 | 4.3 |
| Elevation ft. | 20 | 640 | 2443 |