| | Nantucket, MA | Edgartown, MA | United States |
| Rainfall | 45.9 | 47.3 | 38.1 |
| Snowfall | 22.9 | 24.6 | 27.8 |
| Precipitation Days | 118 | 107.7 | 106.2 |
| Sunny | 201 | 201 | 205 |
| Avg. July High | 76.5 | 78.9 | 85.8 |
| Avg. Jan. Low | 24.6 | 22.8 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.2 | 7 |
| UV Index | 3.7 | 3.7 | 4.3 |
| Elevation ft. | 23 | 10 | 2443 |