| | Wilmington Manor, DE | Harrington, DE | United States |
| Rainfall | 45 | 45 | 38 |
| Snowfall | 12 | 14 | 28 |
| Precipitation | 108 | 120 | 106 |
| Sunny | 201 | 202 | 205 |
| Avg. July High | 87 | 86 | 86 |
| Avg. Jan. Low | 24 | 25 | 22 |
| Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
| UV Index | 4.1 | 3.8 | 4.3 |
| Elevation | 59 | 59 | 2443 |