| | Gloucester Courthouse, VA | Darlington, MD | United States |
| Rainfall | 47.6 | 47.2 | 38.1 |
| Snowfall | 5.5 | 18.3 | 27.8 |
| Precipitation Days | 122.1 | 124 | 106.2 |
| Sunny | 216 | 211 | 205 |
| Avg. July High | 86.9 | 87.9 | 85.8 |
| Avg. Jan. Low | 28.5 | 23.1 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.2 | 7 |
| UV Index | 4.4 | 3.9 | 4.3 |
| Elevation ft. | 36 | 325 | 2443 |