Neerslag — 2026
| Maand | Ridderkerk | Zwijndrecht | Verschil |
|---|---|---|---|
| Jan | 96.4 mm | 76.6 mm | +19.8 |
| Feb | 63.5 mm | 98.3 mm | -34.8 |
| Mrt | 64.7 mm | 59.9 mm | +4.8 |
| Apr | 3.6 mm | 9.8 mm | -6.2 |
| Mei | 67.4 mm | 94 mm | -26.6 |
| Jun | 79.3 mm | 81.1 mm | -1.8 |
| Jul | 6.7 mm | 7.3 mm | -0.6 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |