| | Dewey Beach, DE | Bethany Beach, DE | United States |
| Rainfall | 44.4 | 44.3 | 38.1 |
| Snowfall | 12.3 | 11.3 | 27.8 |
| Precipitation Days | 123.3 | 122.7 | 106.2 |
| Sunny | 203 | 203 | 205 |
| Avg. July High | 86 | 85.6 | 85.8 |
| Avg. Jan. Low | 28.2 | 28 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.4 | 7 |
| UV Index | 3.9 | 3.9 | 4.3 |
| Elevation ft. | 7 | 7 | 2443 |