| | Mendon, MA | Hopkinton, MA | United States |
| Rainfall | 49.2 | 49.1 | 38.1 |
| Snowfall | 43.3 | 44.6 | 27.8 |
| Precipitation Days | 119.8 | 116.7 | 106.2 |
| Sunny | 198 | 200 | 205 |
| Avg. July High | 82.9 | 83.2 | 85.8 |
| Avg. Jan. Low | 14.9 | 15 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.9 | 7 |
| UV Index | 3.3 | 3.5 | 4.3 |
| Elevation ft. | 371 | 436 | 2443 |