Neerslag — 2026
| Monat | Haarlem | Heemstede | Unterschied |
|---|---|---|---|
| Jan | 90.4 mm | – | – |
| Feb | 79.8 mm | – | – |
| Mär | 36.6 mm | 1.6 mm | +35.0 |
| Apr | 4.3 mm | 8.5 mm | -4.2 |
| Mai | 49.5 mm | 39.4 mm | +10.1 |
| Jun | 100.9 mm | 73 mm | +27.9 |
| Jul | 14.4 mm | 14.6 mm | -0.2 |
| Aug |
| 94 mm |
| 81 mm |
| +13.0 |
| Sep | 90.5 mm | 93.4 mm | -2.9 |
| Okt | 121.3 mm | 121.3 mm | +0.0 |
| Nov | 4.2 mm | 3.8 mm | +0.4 |
| Dez | – | – | – |