Neerslag — 2026
| Mois | Voorschoten | Leidschendam-Voorburg | Différence |
|---|---|---|---|
| Jan | – | 103.7 mm | – |
| Fév | – | 54.7 mm | – |
| Mar | 3.6 mm | 67.3 mm | -63.7 |
| Avr | 3.7 mm | 3.4 mm | +0.3 |
| Mai | 51.3 mm | 51.3 mm | +0.0 |
| Juin | 74.9 mm | 75 mm | -0.1 |
| Juil | 14.7 mm | 14.7 mm | +0.0 |
| Aoû |
| 60.3 mm |
| 60.1 mm |
| +0.2 |
| Sep | 37.7 mm | 44 mm | -6.3 |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |