Neerslag — 2026
| Month | Capelle aan den IJssel | Ridderkerk | Difference |
|---|---|---|---|
| Jan | – | 96.4 mm | – |
| Feb | – | 63.5 mm | – |
| Mar | 10.8 mm | 64.7 mm | -53.9 |
| Apr | 4.2 mm | 3.6 mm | +0.6 |
| May | 51.3 mm | 67.4 mm | -16.1 |
| Jun | 74.9 mm | 79.3 mm | -4.4 |
| Jul | 8.4 mm | 7.5 mm | +0.9 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |