| | Portsmouth, RI | Millville, DE | United States |
| Rainfall | 48 | 44 | 38 |
| Snowfall | 32 | 11 | 28 |
| Precipitation | 127 | 123 | 106 |
| Sunny | 201 | 206 | 205 |
| Avg. July High | 80 | 86 | 86 |
| Avg. Jan. Low | 23 | 28 | 22 |
| Comfort Index (higher=better) | 7.1 | 7.4 | 7 |
| UV Index | 3.6 | 3.9 | 4.3 |
| Elevation | 141 | 10 | 2443 |