| Chattanooga, TN | Alton, IL | United States |
Rainfall | 51.1 | 41.7 | 38.1 |
Snowfall | 1.5 | 15.5 | 27.8 |
Precipitation Days | 99 | 104.2 | 106.2 |
Sunny | 207 | 200 | 205 |
Avg. July High | 89 | 88.7 | 85.8 |
Avg. Jan. Low | 28.9 | 22.7 | 21.7 |
Comfort Index (higher=better) | 7.5 | 7.2 | 7 |
UV Index | 4.7 | 4.1 | 4.3 |
Elevation ft. | 676 | 495 | 2443 |