Neerslag — 2026
| Maand | Nissewaard | Midden-Delfland | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 5 mm | 4.7 mm | +0.3 |
| Apr | 2 mm | 2.7 mm | -0.7 |
| Mei | 56.9 mm | 39.8 mm | +17.1 |
| Jun | 79.2 mm | 72.8 mm | +6.4 |
| Jul | 13.3 mm | 13.9 mm | -0.6 |
| Aug |
| 52.3 mm |
| 62.5 mm |
| -10.2 |
| Sep | 28.7 mm | 38.6 mm | -9.9 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |