| | Graham, WA | Heron, MT | United States |
| Rainfall | 52.1 | 31.4 | 38.1 |
| Snowfall | 6.9 | 65.5 | 27.8 |
| Precipitation Days | 170.9 | 141.2 | 106.2 |
| Sunny | 141 | 166 | 205 |
| Avg. July High | 75.6 | 81.3 | 85.8 |
| Avg. Jan. Low | 35 | 21.8 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 6.3 | 7 |
| UV Index | 2.6 | 3.2 | 4.3 |
| Elevation ft. | 607 | 2251 | 2443 |