Wind — 2021
| Month | Ferrières | Manhay | Difference |
|---|---|---|---|
| Jan | 16.2 km/h | – | – |
| Feb | 18.1 km/h | – | – |
| Mar | 15.3 km/h | – | – |
| Apr | 12.5 km/h | – | – |
| May | 16.9 km/h | – | – |
| Jun | 10.5 km/h | – | – |
| Jul | 13 km/h | – | – |
| Aug | 13.1 km/h | – | – |
| Sep |
| 10.6 km/h |
| – |
| – |
| Oct | 16.9 km/h | – | – |
| Nov | 12.2 km/h | – | – |
| Dec | 15.8 km/h | – | – |