| Clarksville, TN | Helena, MT | United States |
Rainfall | 51 | 13 | 38 |
Snowfall | 5 | 42 | 28 |
Precipitation | 117 | 90 | 106 |
Sunny | 210 | 189 | 205 |
Avg. July High | 89 | 83 | 86 |
Avg. Jan. Low | 27 | 14 | 22 |
Comfort Index (higher=better) | 7.3 | 6.6 | 7 |
UV Index | 4.5 | 3.9 | 4.3 |
Elevation | 476 | 4045 | 2443 |