| | Ponchatoula, LA | Donaldsonville, LA | United States |
| Rainfall | 62.4 | 62.3 | 38.1 |
| Snowfall | 0.1 | 0.1 | 27.8 |
| Precipitation Days | 105.4 | 106.1 | 106.2 |
| Sunny | 221 | 216 | 205 |
| Avg. July High | 91.4 | 91 | 85.8 |
| Avg. Jan. Low | 38.3 | 40.8 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.9 | 7 |
| UV Index | 5.7 | 5.8 | 4.3 |
| Elevation ft. | 26 | 23 | 2443 |