| | Oregon City, OR | Gresham, OR | United States |
| Rainfall | 42.9 | 56.1 | 38.1 |
| Snowfall | 1.6 | 3.3 | 27.8 |
| Precipitation Days | 146.6 | 164 | 106.2 |
| Sunny | 143 | 144 | 205 |
| Avg. July High | 81.8 | 80.4 | 85.8 |
| Avg. Jan. Low | 36.1 | 33.8 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 7.3 | 7 |
| UV Index | 2.8 | 3 | 4.3 |
| Elevation ft. | 125 | 318 | 2443 |