Neerslag — 2026
| Monat | Leiden | Oegstgeest | Unterschied |
|---|---|---|---|
| Jan | 87.4 mm | – | – |
| Feb | 68.7 mm | – | – |
| Mär | 41.8 mm | 7.8 mm | +34.0 |
| Apr | 3.7 mm | 3 mm | +0.7 |
| Mai | 39.4 mm | 39.4 mm | +0.0 |
| Jun | 73 mm | 73 mm | +0.0 |
| Jul | 10.2 mm | 10.2 mm | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |