| | Petal, MS | Horn Lake, MS | United States |
| Rainfall | 60.3 | 53.2 | 38.1 |
| Snowfall | 0.3 | 3.3 | 27.8 |
| Precipitation Days | 107.1 | 98.2 | 106.2 |
| Sunny | 218 | 218 | 205 |
| Avg. July High | 91.1 | 92.1 | 85.8 |
| Avg. Jan. Low | 36.4 | 30.7 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7 | 7 |
| UV Index | 5.6 | 4.8 | 4.3 |
| Elevation ft. | 157 | 295 | 2443 |