Neerslag — 2025
| Month | Ridderkerk | Hendrik-Ido-Ambacht | Difference |
|---|---|---|---|
| Jan | 100.3 mm | – | – |
| Feb | 33.9 mm | – | – |
| Mar | 7.3 mm | – | – |
| Apr | 33.3 mm | – | – |
| May | 38 mm | – | – |
| Jun | 60.3 mm | – | – |
| Jul | 81.1 mm | – | – |
| Aug | 33.7 mm | – | – |
| Sep |
| 52.7 mm |
| – |
| – |
| Oct | 122.1 mm | – | – |
| Nov | 72.7 mm | – | – |
| Dec | 25.7 mm | – | – |