Wind — 2020
| Month | Schiedam | Delft | Difference |
|---|---|---|---|
| Jan | 19.1 km/h | 21.6 km/h | -2.5 |
| Feb | 26.8 km/h | 30 km/h | -3.2 |
| Mar | 19.5 km/h | 21.9 km/h | -2.4 |
| Apr | 13.9 km/h | 15.4 km/h | -1.5 |
| May | 14.5 km/h | 16.2 km/h | -1.7 |
| Jun | 14.4 km/h | 16.1 km/h | -1.7 |
| Jul | 14.8 km/h | 16.7 km/h | -1.9 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |