| | Stow, MA | Sudbury, MA | United States |
| Rainfall | 48.1 | 48.5 | 38.1 |
| Snowfall | 48.1 | 50.3 | 27.8 |
| Precipitation Days | 130.5 | 130.5 | 106.2 |
| Sunny | 199 | 199 | 205 |
| Avg. July High | 83.2 | 82.6 | 85.8 |
| Avg. Jan. Low | 16.2 | 15.5 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.8 | 7 |
| UV Index | 3.5 | 3.5 | 4.3 |
| Elevation ft. | 233 | 184 | 2443 |