Neerslag — 2026
| Month | Maassluis | Midden-Delfland | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 6.1 mm | 4.7 mm | +1.4 |
| Apr | 2.4 mm | 2.7 mm | -0.3 |
| May | 39.8 mm | 39.8 mm | +0.0 |
| Jun | 72.8 mm | 72.8 mm | +0.0 |
| Jul | 13.9 mm | 13.9 mm | +0.0 |
| Aug |
| 62.4 mm |
| 62.5 mm |
| -0.1 |
| Sep | 79.8 mm | 79.6 mm | +0.2 |
| Oct | 97.3 mm | 97.3 mm | +0.0 |
| Nov | – | – | – |
| Dec | – | – | – |