Neerslag — 2026
| Maand | Wassenaar | Voorschoten | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 3.5 mm | 3.6 mm | -0.1 |
| Apr | 3.4 mm | 3.7 mm | -0.3 |
| Mei | 37.7 mm | 51.3 mm | -13.6 |
| Jun | 71.1 mm | 74.9 mm | -3.8 |
| Jul | 16.5 mm | 14.7 mm | +1.8 |
| Aug |
| 100.7 mm |
| 60.3 mm |
| +40.4 |
| Sep | 42.9 mm | 37.7 mm | +5.2 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |