| | Culpeper, VA | Helena, MT | United States |
| Rainfall | 44 | 12.6 | 38.1 |
| Snowfall | 19.3 | 42.1 | 27.8 |
| Precipitation Days | 116.5 | 89.6 | 106.2 |
| Sunny | 198 | 189 | 205 |
| Avg. July High | 86.5 | 83.4 | 85.8 |
| Avg. Jan. Low | 22.2 | 13.8 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 6.6 | 7 |
| UV Index | 4.3 | 3.9 | 4.3 |
| Elevation ft. | 423 | 4045 | 2443 |