Neerslag — 2023
| Mois | Genappe | Lasne | Différence |
|---|---|---|---|
| Jan | – | – | – |
| Fév | – | – | – |
| Mar | 133.7 mm | 115.5 mm | +18.2 |
| Avr | 80.7 mm | 81.1 mm | -0.4 |
| Mai | 57.1 mm | 60.9 mm | -3.8 |
| Juin | 48.7 mm | 39.6 mm | +9.1 |
| Juil | 109 mm | 107.8 mm | +1.2 |
| Aoû |
| 91.7 mm |
| 94.9 mm |
| -3.2 |
| Sep | 61.6 mm | 68.7 mm | -7.1 |
| Oct | 128.6 mm | 130.7 mm | -2.1 |
| Nov | 115.8 mm | 118.8 mm | -3.0 |
| Déc | 82.5 mm | 79.7 mm | +2.8 |