| Springfield, IL | Joliet, IL | United States |
Rainfall | 38 | 39 | 38 |
Snowfall | 18 | 28 | 28 |
Precipitation | 103 | 125 | 106 |
Sunny | 196 | 186 | 205 |
Avg. July High | 85 | 84 | 86 |
Avg. Jan. Low | 18 | 16 | 22 |
Comfort Index (higher=better) | 7.2 | 6.9 | 7 |
UV Index | 3.9 | 3.7 | 4.3 |
Elevation | 600 | 541 | 2443 |