| | Irvington, VA | Loudon, TN | United States |
| Rainfall | 47 | 53.2 | 38.1 |
| Snowfall | 6.9 | 4.8 | 27.8 |
| Precipitation Days | 118.3 | 121.5 | 106.2 |
| Sunny | 211 | 204 | 205 |
| Avg. July High | 87.6 | 88.5 | 85.8 |
| Avg. Jan. Low | 27.5 | 27.7 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.3 | 7 |
| UV Index | 4.2 | 4.6 | 4.3 |
| Elevation ft. | 30 | 837 | 2443 |