| | Columbia, MS | Diamondhead, MS | United States |
| Rainfall | 60.1 | 63.3 | 38.1 |
| Snowfall | 0.3 | 0 | 27.8 |
| Precipitation Days | 104.6 | 99.4 | 106.2 |
| Sunny | 217 | 223 | 205 |
| Avg. July High | 92.6 | 89.5 | 85.8 |
| Avg. Jan. Low | 35.8 | 40.4 | 21.7 |
| Comfort Index (higher=better) | 7 | 7.2 | 7 |
| UV Index | 5.3 | 5.8 | 4.3 |
| Elevation ft. | 141 | 66 | 2443 |