| | Monroe, WA | Mount Vernon, WA | United States |
| Rainfall | 51.1 | 38.1 | 38.1 |
| Snowfall | 3 | 5 | 27.8 |
| Precipitation Days | 177.5 | 165 | 106.2 |
| Sunny | 165 | 156 | 205 |
| Avg. July High | 75.7 | 72.8 | 85.8 |
| Avg. Jan. Low | 34.4 | 35.7 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.2 | 7 |
| UV Index | 2.7 | 2.6 | 4.3 |
| Elevation ft. | 72 | 98 | 2443 |