| | Edgemont, SD | Custer, SD | United States |
| Rainfall | 17.1 | 19.9 | 38.1 |
| Snowfall | 34.3 | 55.3 | 27.8 |
| Precipitation Days | 78.4 | 93 | 106.2 |
| Sunny | 230 | 226 | 205 |
| Avg. July High | 89.9 | 79.5 | 85.8 |
| Avg. Jan. Low | 10.7 | 15.5 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.7 | 7 |
| UV Index | 5 | 4.7 | 4.3 |
| Elevation ft. | 3458 | 5315 | 2443 |