| | Branford, CT | Stonington, CT | United States |
| Rainfall | 47.9 | 47.9 | 38.1 |
| Snowfall | 29.1 | 26.9 | 27.8 |
| Precipitation Days | 107.5 | 120.6 | 106.2 |
| Sunny | 205 | 204 | 205 |
| Avg. July High | 83.5 | 79.5 | 85.8 |
| Avg. Jan. Low | 19.8 | 21.7 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.1 | 7 |
| UV Index | 3.5 | 3.3 | 4.3 |
| Elevation ft. | 52 | 20 | 2443 |