Neerslag — 2026
| Maand | Oegstgeest | Leiden | Verschil |
|---|---|---|---|
| Jan | – | 87.4 mm | – |
| Feb | – | 68.7 mm | – |
| Mrt | 7.8 mm | 41.8 mm | -34.0 |
| Apr | 3 mm | 3.7 mm | -0.7 |
| Mei | 39.4 mm | 39.4 mm | +0.0 |
| Jun | 73 mm | 73 mm | +0.0 |
| Jul | 14.6 mm | 14.6 mm | +0.0 |
| Aug |
| 80.8 mm |
| 81 mm |
| -0.2 |
| Sep | 39.6 mm | 41.3 mm | -1.7 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |