Neerslag — 2026
| Month | Capelle aan den IJssel | Krimpen aan den IJssel | Difference |
|---|---|---|---|
| Jan | – | 89.9 mm | – |
| Feb | – | 58.8 mm | – |
| Mar | 10.8 mm | 75.2 mm | -64.4 |
| Apr | 4.2 mm | 3.8 mm | +0.4 |
| May | 51.3 mm | 51.3 mm | +0.0 |
| Jun | 74.9 mm | 74.9 mm | +0.0 |
| Jul | 14.7 mm | 14.7 mm | +0.0 |
| Aug |
| 60.4 mm |
| 60.5 mm |
| -0.1 |
| Sep | 70.5 mm | 70.5 mm | +0.0 |
| Oct | 93.2 mm | 93.2 mm | +0.0 |
| Nov | – | – | – |
| Dec | – | – | – |