| | Boxborough, MA | Westwood, MA | United States |
| Rainfall | 48.5 | 47.8 | 38.1 |
| Snowfall | 50.5 | 47.1 | 27.8 |
| Precipitation Days | 128.5 | 121.7 | 106.2 |
| Sunny | 199 | 201 | 205 |
| Avg. July High | 83.1 | 82.6 | 85.8 |
| Avg. Jan. Low | 15.1 | 16.7 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 6.9 | 7 |
| UV Index | 3.5 | 3.5 | 4.3 |
| Elevation ft. | 314 | 230 | 2443 |