| | Opp, AL | Huntsville, AL | United States |
| Rainfall | 59.3 | 54.7 | 38.1 |
| Snowfall | 0.2 | 1.6 | 27.8 |
| Precipitation Days | 103.3 | 120.3 | 106.2 |
| Sunny | 223 | 199 | 205 |
| Avg. July High | 91.7 | 90.1 | 85.8 |
| Avg. Jan. Low | 36.9 | 29.6 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
| UV Index | 5.1 | 4.9 | 4.3 |
| Elevation ft. | 338 | 633 | 2443 |