Neerslag — 2024
| Mois | Leiden | Oegstgeest | Différence |
|---|---|---|---|
| Jan | 77.1 mm | – | – |
| Fév | 136.7 mm | – | – |
| Mar | 65.5 mm | – | – |
| Avr | 107.9 mm | – | – |
| Mai | 163.4 mm | – | – |
| Juin | 74.7 mm | – | – |
| Juil | 114.1 mm | – | – |
| Aoû | 58.2 mm | – | – |
| Sep |
| 139.6 mm |
| – |
| – |
| Oct | 54.5 mm | – | – |
| Nov | 134.9 mm | – | – |
| Déc | 101.5 mm | – | – |