| Spearfish, SD | Gillette, WY | United States |
Rainfall | 21 | 15 | 38 |
Snowfall | 56 | 53 | 28 |
Precipitation | 90 | 80 | 106 |
Sunny | 227 | 209 | 205 |
Avg. July High | 88 | 87 | 86 |
Avg. Jan. Low | 17 | 13 | 22 |
Comfort Index (higher=better) | 6.9 | 6.8 | 7 |
UV Index | 4.7 | 3.6 | 4.3 |
Elevation | 3648 | 4554 | 2443 |