| | Chelmsford, MA | Montgomery, IL | United States |
| Rainfall | 47.2 | 37.7 | 38.1 |
| Snowfall | 56 | 28.2 | 27.8 |
| Precipitation Days | 126 | 119.8 | 106.2 |
| Sunny | 201 | 189 | 205 |
| Avg. July High | 83.3 | 83.7 | 85.8 |
| Avg. Jan. Low | 15.4 | 14.4 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.8 | 7 |
| UV Index | 3.5 | 3.5 | 4.3 |
| Elevation ft. | 243 | 640 | 2443 |