| Synoptic stations | Min | Max | Skewness | Kurtosis |
| Cotonou | 0 | 194.2 | 4.68 | 33.15 |
| Bohicon | 0 | 128.5 | 4.00 | 23.60 |
| Save | 0 | 184.2 | 4.31 | 30.60 |
| Parakou | 0 | 176 | 4.00 | 27.17 |
| Natitingou | 0 | 149.7 | 3.20 | 17.487 |
| Kandi | 0 | 157.8 | 3.69 | 22.62 |