Neerslag — 2020
| Mois | Goeree-Overflakkee | Tholen | Différence |
|---|---|---|---|
| Jan | 49.7 mm | 45.1 mm | +4.6 |
| Fév | 111.5 mm | 116.4 mm | -4.9 |
| Mar | 50.8 mm | 62.4 mm | -11.6 |
| Avr | 28.1 mm | 26 mm | +2.1 |
| Mai | 9.4 mm | 12.1 mm | -2.7 |
| Juin | 77.5 mm | 82.9 mm | -5.4 |
| Juil | 59.8 mm | 63.1 mm | -3.3 |
| Aoû | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |