Neerslag — 2020
| Mois | Gorinchem | Hardinxveld-Giessendam | Différence |
|---|---|---|---|
| Jan | 43.5 mm | 42.7 mm | +0.8 |
| Fév | 130.3 mm | 127.8 mm | +2.5 |
| Mar | 56.7 mm | 55.1 mm | +1.6 |
| Avr | 22.3 mm | 23.2 mm | -0.9 |
| Mai | 13.5 mm | 14.2 mm | -0.7 |
| Juin | 65.1 mm | 64.2 mm | +0.9 |
| Juil | 66.6 mm | 63.5 mm | +3.1 |
| Aoû | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |