| CLIMATE | Lake Oswego | Fort Smith | United States |
| Rainfall (in.) | 39.3 | 40.7 | 36.5 |
| Snowfall (in.) | 2.1 | 5.9 | 25 |
| Precipitation Days | 152 | 96 | 100 |
| Sunny Days | 141 | 214 | 205 |
| Avg. July High | 79 | 93 | 86.5 |
| Avg. Jan. Low | 33.8 | 29.2 | 20.5 |
| Comfort Index (higher=better) | 64 | 25 | 44 |
| UV Index | 2.8 | 4.8 | 4.3 |
| Elevation ft. | 290 | 517 | 1,443 |