| | Winlock, WA | Rainier, WA | United States |
| Rainfall | 52.1 | 49.3 | 38.1 |
| Snowfall | 3.1 | 6 | 27.8 |
| Precipitation Days | 171.3 | 167.3 | 106.2 |
| Sunny | 136 | 136 | 205 |
| Avg. July High | 78.5 | 76.9 | 85.8 |
| Avg. Jan. Low | 34.3 | 34.5 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.1 | 7 |
| UV Index | 2.5 | 2.6 | 4.3 |
| Elevation ft. | 305 | 433 | 2443 |