| | Mossyrock, WA | Castle Rock, WA | United States |
| Rainfall | 60.6 | 60.8 | 38.1 |
| Snowfall | 7.7 | 3.1 | 27.8 |
| Precipitation Days | 159.8 | 181.2 | 106.2 |
| Sunny | 137 | 139 | 205 |
| Avg. July High | 78.3 | 77.1 | 85.8 |
| Avg. Jan. Low | 32.7 | 33.8 | 21.7 |
| Comfort Index (higher=better) | 7 | 7.1 | 7 |
| UV Index | 2.5 | 3 | 4.3 |
| Elevation ft. | 663 | 56 | 2443 |