| | Sammamish, WA | Carnation, WA | United States |
| Rainfall | 52.7 | 49.9 | 38.1 |
| Snowfall | 6.3 | 3.1 | 27.8 |
| Precipitation Days | 173.5 | 174 | 106.2 |
| Sunny | 155 | 152 | 205 |
| Avg. July High | 75.4 | 76 | 85.8 |
| Avg. Jan. Low | 35.3 | 35.3 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.2 | 7 |
| UV Index | 2.6 | 2.6 | 4.3 |
| Elevation ft. | 59 | 79 | 2443 |