| | Donaldsonville, LA | Marietta, GA | United States |
| Rainfall | 62.3 | 53 | 38.1 |
| Snowfall | 0.1 | 1.7 | 27.8 |
| Precipitation Days | 106.1 | 111.4 | 106.2 |
| Sunny | 216 | 217 | 205 |
| Avg. July High | 91 | 87.6 | 85.8 |
| Avg. Jan. Low | 40.8 | 30.9 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7.6 | 7 |
| UV Index | 5.8 | 4.9 | 4.3 |
| Elevation ft. | 23 | 1129 | 2443 |