Neerslag — 2023
| Mois | Westerlo | Olen | Différence |
|---|---|---|---|
| Jan | – | – | – |
| Fév | – | – | – |
| Mar | 140.3 mm | 119.9 mm | +20.4 |
| Avr | 85.7 mm | 80.8 mm | +4.9 |
| Mai | 59.9 mm | 61.5 mm | -1.6 |
| Juin | 42.1 mm | 49.4 mm | -7.3 |
| Juil | 124.3 mm | 118.9 mm | +5.4 |
| Aoû |
| 97.2 mm |
| 90.4 mm |
| +6.8 |
| Sep | 57.6 mm | 55.7 mm | +1.9 |
| Oct | 132.6 mm | 131.1 mm | +1.5 |
| Nov | 145.4 mm | 131.2 mm | +14.2 |
| Déc | 99.6 mm | 94.6 mm | +5.0 |