| | Acton, MA | Adamstown, MD | United States |
| Rainfall | 48 | 42.4 | 38.1 |
| Snowfall | 50.6 | 20.7 | 27.8 |
| Precipitation Days | 128.6 | 107.9 | 106.2 |
| Sunny | 199 | 197 | 205 |
| Avg. July High | 83.1 | 87.5 | 85.8 |
| Avg. Jan. Low | 16.2 | 23.3 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7.3 | 7 |
| UV Index | 3.5 | 4.2 | 4.3 |
| Elevation ft. | 266 | 305 | 2443 |