| | Dover, DE | Marion, SC | United States |
| Rainfall | 45.2 | 47.9 | 38.1 |
| Snowfall | 15.2 | 0.9 | 27.8 |
| Precipitation Days | 111.3 | 98.6 | 106.2 |
| Sunny | 198 | 212 | 205 |
| Avg. July High | 87.2 | 91.1 | 85.8 |
| Avg. Jan. Low | 25.6 | 32.1 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.4 | 7 |
| UV Index | 3.8 | 4.9 | 4.3 |
| Elevation ft. | 30 | 75 | 2443 |