| | Gurnee, IL | Bartlett, IL | United States |
| Rainfall | 35.8 | 37.6 | 38.1 |
| Snowfall | 43.2 | 32.7 | 27.8 |
| Precipitation Days | 115.8 | 120.7 | 106.2 |
| Sunny | 190 | 192 | 205 |
| Avg. July High | 81.4 | 85.2 | 85.8 |
| Avg. Jan. Low | 15.1 | 13.1 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.8 | 7 |
| UV Index | 3.7 | 3.4 | 4.3 |
| Elevation ft. | 676 | 810 | 2443 |