Neerslag — 2020
| Monat | Haarlemmermeer | Haarlem | Unterschied |
|---|---|---|---|
| Jan | 62.1 mm | 65 mm | -2.9 |
| Feb | 132.9 mm | 131.9 mm | +1.0 |
| Mär | 49.7 mm | 48.9 mm | +0.8 |
| Apr | 24.2 mm | 24.6 mm | -0.4 |
| Mai | 22.2 mm | 18.9 mm | +3.3 |
| Jun | 71.5 mm | 68.7 mm | +2.8 |
| Jul | 72.7 mm | 76.8 mm | -4.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dez | – | – | – |