| | Oak Harbor, WA | Winthrop Harbor, IL | United States |
| Rainfall | 20.3 | 35.7 | 38.1 |
| Snowfall | 3.8 | 40.2 | 27.8 |
| Precipitation Days | 138.6 | 115.3 | 106.2 |
| Sunny | 159 | 191 | 205 |
| Avg. July High | 70.4 | 80.3 | 85.8 |
| Avg. Jan. Low | 37.2 | 15.7 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 6.8 | 7 |
| UV Index | 2.7 | 3.7 | 4.3 |
| Elevation ft. | 95 | 633 | 2443 |