Neerslag — 2026
| Month | Midden-Delfland | Vlaardingen | Difference |
|---|---|---|---|
| Jan | – | 96.9 mm | – |
| Feb | – | 63.3 mm | – |
| Mar | 4.7 mm | 35.5 mm | -30.8 |
| Apr | 2.7 mm | 2.7 mm | +0.0 |
| May | 39.8 mm | 39.8 mm | +0.0 |
| Jun | 72.8 mm | 72.7 mm | +0.1 |
| Jul | 13.9 mm | 13.9 mm | +0.0 |
| Aug |
| 62.5 mm |
| 62.7 mm |
| -0.2 |
| Sep | 79.6 mm | 79.8 mm | -0.2 |
| Oct | 97.3 mm | 97.9 mm | -0.6 |
| Nov | – | – | – |
| Dec | – | – | – |