| | Streamwood, IL | South Barrington, IL | United States |
| Rainfall | 38 | 37.6 | 38.1 |
| Snowfall | 32.8 | 37.5 | 27.8 |
| Precipitation Days | 120.8 | 124.1 | 106.2 |
| Sunny | 186 | 187 | 205 |
| Avg. July High | 84.1 | 83.4 | 85.8 |
| Avg. Jan. Low | 12.3 | 12.3 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.7 | 7 |
| UV Index | 3.6 | 3.6 | 4.3 |
| Elevation ft. | 807 | 850 | 2443 |