| Riverdale, IL | Granite City, IL | United States |
Rainfall | 37.9 | 41.8 | 38.1 |
Snowfall | 31.6 | 14.8 | 27.8 |
Precipitation Days | 123.7 | 103.3 | 106.2 |
Sunny | 186 | 204 | 205 |
Avg. July High | 84.2 | 88.4 | 85.8 |
Avg. Jan. Low | 18.3 | 22.4 | 21.7 |
Comfort Index (higher=better) | 7 | 7.2 | 7 |
UV Index | 3.6 | 4.1 | 4.3 |
Elevation ft. | 600 | 423 | 2443 |