| | Manassas, VA | Keyport, NJ | United States |
| Rainfall | 42.9 | 46.7 | 38.1 |
| Snowfall | 21.5 | 26.5 | 27.8 |
| Precipitation Days | 119.5 | 116.8 | 106.2 |
| Sunny | 196 | 208 | 205 |
| Avg. July High | 87.6 | 84.5 | 85.8 |
| Avg. Jan. Low | 23.7 | 23.9 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
| UV Index | 4.1 | 3.6 | 4.3 |
| Elevation ft. | 308 | 33 | 2443 |