Neerslag — 2025
| Mois | Andenne | Héron | Différence |
|---|---|---|---|
| Jan | 143 mm | 141.2 mm | +1.8 |
| Fév | 40.3 mm | 33.1 mm | +7.2 |
| Mar | 14.7 mm | 16.3 mm | -1.6 |
| Avr | 36.6 mm | 34.2 mm | +2.4 |
| Mai | 52.7 mm | 50.4 mm | +2.3 |
| Juin | 66.7 mm | 54.3 mm | +12.4 |
| Juil | 90.9 mm | 88.8 mm | +2.1 |
| Aoû |
| 32.5 mm |
| 26.4 mm |
| +6.1 |
| Sep | 58.7 mm | 50.7 mm | +8.0 |
| Oct | 79.6 mm | 73.4 mm | +6.2 |
| Nov | 71 mm | 60.1 mm | +10.9 |
| Déc | 27.2 mm | 30.3 mm | -3.1 |