| | Griffith, IN | Gurnee, IL | United States |
| Rainfall | 38.8 | 35.8 | 38.1 |
| Snowfall | 32.3 | 43.2 | 27.8 |
| Precipitation Days | 116.2 | 115.8 | 106.2 |
| Sunny | 188 | 190 | 205 |
| Avg. July High | 83.7 | 81.4 | 85.8 |
| Avg. Jan. Low | 17.7 | 15.1 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.8 | 7 |
| UV Index | 3.7 | 3.7 | 4.3 |
| Elevation ft. | 630 | 676 | 2443 |