| | Exton, PA | Fenwick Island, DE | United States |
| Rainfall | 48.7 | 44.9 | 38.1 |
| Snowfall | 28.5 | 11.4 | 27.8 |
| Precipitation Days | 124.1 | 122.5 | 106.2 |
| Sunny | 200 | 208 | 205 |
| Avg. July High | 84.8 | 86 | 85.8 |
| Avg. Jan. Low | 20.2 | 28.3 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.4 | 7 |
| UV Index | 4 | 3.9 | 4.3 |
| Elevation ft. | 315 | 3 | 2443 |