| | Jerseyville, IL | Milledgeville, GA | United States |
| Rainfall | 40.1 | 45.7 | 38.1 |
| Snowfall | 15.5 | 0.3 | 27.8 |
| Precipitation Days | 98 | 95.6 | 106.2 |
| Sunny | 202 | 216 | 205 |
| Avg. July High | 87.1 | 92.6 | 85.8 |
| Avg. Jan. Low | 19.5 | 33.3 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
| UV Index | 4.1 | 5 | 4.3 |
| Elevation ft. | 659 | 344 | 2443 |