Neerslag — 2026
| Month | Voorschoten | Leidschendam-Voorburg | Difference |
|---|---|---|---|
| Jan | – | 103.7 mm | – |
| Feb | – | 54.7 mm | – |
| Mar | 3.6 mm | 67.3 mm | -63.7 |
| Apr | 3.7 mm | 3.4 mm | +0.3 |
| May | 51.3 mm | 51.3 mm | +0.0 |
| Jun | 74.9 mm | 75 mm | -0.1 |
| Jul | 14.7 mm | 14.7 mm | +0.0 |
| Aug |
| 60.3 mm |
| 60.1 mm |
| +0.2 |
| Sep | 70.3 mm | 70.5 mm | -0.2 |
| Oct | 93.3 mm | 91.6 mm | +1.7 |
| Nov | – | – | – |
| Dec | – | – | – |