| | Darby, MT | Montpelier, ID | United States |
| Rainfall | 16.2 | 14.8 | 38.1 |
| Snowfall | 48.8 | 69.4 | 27.8 |
| Precipitation Days | 108.5 | 103 | 106.2 |
| Sunny | 157 | 209 | 205 |
| Avg. July High | 82.9 | 84.1 | 85.8 |
| Avg. Jan. Low | 14.7 | 4.7 | 21.7 |
| Comfort Index (higher=better) | 6.5 | 6.2 | 7 |
| UV Index | 3 | 4.7 | 4.3 |
| Elevation ft. | 3884 | 5981 | 2443 |