Neerslag — 2026
| Month | Kaag en Braassem | Leiderdorp | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 6.4 mm | 8.3 mm | -1.9 |
| Apr | 4.3 mm | 4.2 mm | +0.1 |
| May | 52.1 mm | 39.4 mm | +12.7 |
| Jun | 86.3 mm | 73 mm | +13.3 |
| Jul | 13.1 mm | 14.6 mm | -1.5 |
| Aug |
| 76.9 mm |
| 81 mm |
| -4.1 |
| Sep | 46.1 mm | 46.4 mm | -0.3 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |