| | Deer Lodge, MT | Roundup, MT | United States |
| Rainfall | 13.5 | 14.1 | 38.1 |
| Snowfall | 60.1 | 32.9 | 27.8 |
| Precipitation Days | 81.7 | 73.8 | 106.2 |
| Sunny | 176 | 198 | 205 |
| Avg. July High | 80.3 | 88.1 | 85.8 |
| Avg. Jan. Low | 11.7 | 13 | 21.7 |
| Comfort Index (higher=better) | 6.4 | 7 | 7 |
| UV Index | 3.7 | 3.8 | 4.3 |
| Elevation ft. | 4567 | 3215 | 2443 |