| | Niantic, CT | Plymouth, MA | United States |
| Rainfall | 50.1 | 50.6 | 38.1 |
| Snowfall | 25.8 | 36.3 | 27.8 |
| Precipitation Days | 117.9 | 129.3 | 106.2 |
| Sunny | 200 | 201 | 205 |
| Avg. July High | 80.7 | 81.3 | 85.8 |
| Avg. Jan. Low | 21 | 18.9 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7 | 7 |
| UV Index | 3.3 | 3.3 | 4.3 |
| Elevation ft. | 23 | 49 | 2443 |