| | Petersburg, WV | Grantsville, WV | United States |
| Rainfall | 35.6 | 46.1 | 38.1 |
| Snowfall | 25.1 | 24.1 | 27.8 |
| Precipitation Days | 116.1 | 148.6 | 106.2 |
| Sunny | 153 | 175 | 205 |
| Avg. July High | 86.3 | 84.8 | 85.8 |
| Avg. Jan. Low | 20.7 | 20.3 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.1 | 7 |
| UV Index | 3.4 | 3.9 | 4.3 |
| Elevation ft. | 935 | 712 | 2443 |