| | Loudon, TN | West Chicago, IL | United States |
| Rainfall | 53.2 | 37.8 | 38.1 |
| Snowfall | 4.8 | 30.5 | 27.8 |
| Precipitation Days | 121.5 | 119 | 106.2 |
| Sunny | 204 | 187 | 205 |
| Avg. July High | 88.5 | 85.2 | 85.8 |
| Avg. Jan. Low | 27.7 | 13.7 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 6.8 | 7 |
| UV Index | 4.6 | 3.4 | 4.3 |
| Elevation ft. | 837 | 784 | 2443 |