Neerslag — 2026
| Month | Haarlemmermeer | Heemstede | Difference |
|---|---|---|---|
| Jan | 101.9 mm | – | – |
| Feb | 62.7 mm | – | – |
| Mar | 35 mm | 1.6 mm | +33.4 |
| Apr | 5.8 mm | 8.5 mm | -2.7 |
| May | 52.1 mm | 39.4 mm | +12.7 |
| Jun | 86.4 mm | 73 mm | +13.4 |
| Jul | 13.1 mm | 14.6 mm | -1.5 |
| Aug |
| 77.3 mm |
| 81 mm |
| -3.7 |
| Sep | 83.2 mm | 93.4 mm | -10.2 |
| Oct | 114.3 mm | 122.8 mm | -8.5 |
| Nov | – | – | – |
| Dec | – | – | – |