| | Millis, MA | Hanover, MA | United States |
| Rainfall | 48.8 | 52.2 | 38.1 |
| Snowfall | 47 | 43.1 | 27.8 |
| Precipitation Days | 121.2 | 128.9 | 106.2 |
| Sunny | 201 | 201 | 205 |
| Avg. July High | 82.9 | 83.1 | 85.8 |
| Avg. Jan. Low | 16.2 | 20.3 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7 | 7 |
| UV Index | 3.5 | 3.3 | 4.3 |
| Elevation ft. | 171 | 49 | 2443 |