| | Durham, CT | Middlefield, CT | United States |
| Rainfall | 50 | 51 | 38 |
| Snowfall | 35 | 35 | 28 |
| Precipitation | 114 | 111 | 106 |
| Sunny | 193 | 191 | 205 |
| Avg. July High | 84 | 84 | 86 |
| Avg. Jan. Low | 19 | 19 | 22 |
| Comfort Index (higher=better) | 7.1 | 7.1 | 7 |
| UV Index | 3.4 | 3.4 | 4.3 |
| Elevation | 213 | 194 | 2443 |