Neerslag — 2020
| Mois | Héron | Braives | Différence |
|---|---|---|---|
| Jan | 42.3 mm | 48.6 mm | -6.3 |
| Fév | 139.1 mm | 156.4 mm | -17.3 |
| Mar | 75.5 mm | 86.2 mm | -10.7 |
| Avr | 29 mm | 31 mm | -2.0 |
| Mai | 22.1 mm | 24.4 mm | -2.3 |
| Juin | 68.9 mm | 72.6 mm | -3.7 |
| Juil | 49.4 mm | 59.4 mm | -10.0 |
| Aoû |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |