| | Merrillville, IN | Griffith, IN | United States |
| Rainfall | 38.4 | 38.8 | 38.1 |
| Snowfall | 32.5 | 32.3 | 27.8 |
| Precipitation Days | 121.1 | 116.2 | 106.2 |
| Sunny | 188 | 188 | 205 |
| Avg. July High | 82.8 | 83.7 | 85.8 |
| Avg. Jan. Low | 16.3 | 17.7 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7 | 7 |
| UV Index | 3.7 | 3.7 | 4.3 |
| Elevation ft. | 656 | 630 | 2443 |