Wind — 2020
| Month | Herstappe | Borgloon | Difference |
|---|---|---|---|
| Jan | 16.8 km/h | 16.9 km/h | -0.1 |
| Feb | 23.9 km/h | 24.4 km/h | -0.5 |
| Mar | 16.8 km/h | 17 km/h | -0.2 |
| Apr | 11.6 km/h | 11.7 km/h | -0.1 |
| May | 11.8 km/h | 11.9 km/h | -0.1 |
| Jun | 11.7 km/h | 11.7 km/h | +0.0 |
| Jul | 11.8 km/h | 12.3 km/h | -0.5 |
| Aug | – | 12 km/h | – |
| Sep | – | 11.3 km/h | – |
| Oct | – | 17.6 km/h | – |
| Nov | – | 14.9 km/h | – |
| Dec | – | 16.3 km/h | – |