| | Richland, WA | Umatilla, OR | United States |
| Rainfall | 8.1 | 9 | 38.1 |
| Snowfall | 3.6 | 1.9 | 27.8 |
| Precipitation Days | 82.8 | 81.3 | 106.2 |
| Sunny | 196 | 195 | 205 |
| Avg. July High | 89.9 | 88.3 | 85.8 |
| Avg. Jan. Low | 28.7 | 28.7 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 7.6 | 7 |
| UV Index | 3.2 | 3.2 | 4.3 |
| Elevation ft. | 384 | 322 | 2443 |