| CLIMATE | Rockaway Township | Manassas | United States |
| Rainfall (in.) | 50.8 | 35.6 | 36.5 |
| Snowfall (in.) | 21.2 | 16.3 | 25 |
| Precipitation Days | 114 | 83 | 100 |
| Sunny Days | 206 | 196 | 205 |
| Avg. July High | 84 | 88 | 86.5 |
| Avg. Jan. Low | 18.8 | 24.1 | 20.5 |
| Comfort Index (higher=better) | 49 | 43 | 44 |
| UV Index | 3.8 | 4.1 | 4.3 |
| Elevation ft. | 779 | 276 | 1,443 |
