| Charlestown, MD | Huntsville, AL | United States |
Rainfall | 46 | 55 | 38 |
Snowfall | 15 | 2 | 28 |
Precipitation | 116 | 120 | 106 |
Sunny | 199 | 199 | 205 |
Avg. July High | 88 | 90 | 86 |
Avg. Jan. Low | 23 | 30 | 22 |
Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
UV Index | 4 | 4.9 | 4.3 |
Elevation | 36 | 633 | 2443 |