| Groton, CT | Charlestown, RI | United States |
Rainfall | 47.9 | 50.5 | 38.1 |
Snowfall | 26.6 | 26.6 | 27.8 |
Precipitation Days | 118.6 | 114.3 | 106.2 |
Sunny | 204 | 210 | 205 |
Avg. July High | 79.6 | 80.7 | 85.8 |
Avg. Jan. Low | 21.7 | 19.5 | 21.7 |
Comfort Index (higher=better) | 7.1 | 7.1 | 7 |
UV Index | 3.3 | 3.6 | 4.3 |
Elevation ft. | 79 | 23 | 2443 |