| | Afton, WY | Darby, MT | United States |
| Rainfall | 19.1 | 16.2 | 38.1 |
| Snowfall | 86.5 | 48.8 | 27.8 |
| Precipitation Days | 109.2 | 108.5 | 106.2 |
| Sunny | 208 | 157 | 205 |
| Avg. July High | 81.1 | 82.9 | 85.8 |
| Avg. Jan. Low | 5.1 | 14.7 | 21.7 |
| Comfort Index (higher=better) | 5.9 | 6.5 | 7 |
| UV Index | 4.5 | 3 | 4.3 |
| Elevation ft. | 6240 | 3884 | 2443 |