| | Erwin, TN | Jonesborough, TN | United States |
| Rainfall | 44 | 43.8 | 38.1 |
| Snowfall | 10.4 | 10.7 | 27.8 |
| Precipitation Days | 134.6 | 134.7 | 106.2 |
| Sunny | 197 | 201 | 205 |
| Avg. July High | 85.5 | 85.5 | 85.8 |
| Avg. Jan. Low | 25.7 | 25.5 | 21.7 |
| Comfort Index (higher=better) | 7.6 | 7.5 | 7 |
| UV Index | 4.4 | 4.8 | 4.3 |
| Elevation ft. | 1673 | 1693 | 2443 |