| | Vienna, IL | Charleston, IL | United States |
| Rainfall | 48.5 | 40.3 | 38.1 |
| Snowfall | 8.2 | 15.1 | 27.8 |
| Precipitation Days | 105.1 | 111.3 | 106.2 |
| Sunny | 206 | 202 | 205 |
| Avg. July High | 89.1 | 86.2 | 85.8 |
| Avg. Jan. Low | 26.1 | 20.2 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.2 | 7 |
| UV Index | 4.1 | 4.1 | 4.3 |
| Elevation ft. | 413 | 673 | 2443 |