| | Warrenville, IL | Streamwood, IL | United States |
| Rainfall | 38.6 | 38 | 38.1 |
| Snowfall | 28.2 | 32.8 | 27.8 |
| Precipitation Days | 119.3 | 120.8 | 106.2 |
| Sunny | 192 | 186 | 205 |
| Avg. July High | 84.2 | 84.1 | 85.8 |
| Avg. Jan. Low | 15 | 12.3 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.8 | 7 |
| UV Index | 3.4 | 3.6 | 4.3 |
| Elevation ft. | 696 | 807 | 2443 |