Neerslag — 2023
| Monat | Rotterdam | Lansingerland | Unterschied |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mär | 55.8 mm | 0.2 mm | +55.6 |
| Apr | 90.1 mm | 79.4 mm | +10.7 |
| Mai | 69.4 mm | 63.4 mm | +6.0 |
| Jun | 16.7 mm | 16.9 mm | -0.2 |
| Jul | 139.4 mm | 140.2 mm | -0.8 |
| Aug |
| 105.5 mm |
| 97.1 mm |
| +8.4 |
| Sep | 78.8 mm | 79.5 mm | -0.7 |
| Okt | 154.8 mm | 159.7 mm | -4.9 |
| Nov | 155.2 mm | 162.9 mm | -7.7 |
| Dez | 123.9 mm | 119.8 mm | +4.1 |