Wind — 2007
| Month | Ferrières | Manhay | Difference |
|---|---|---|---|
| Jan | 21.6 km/h | – | – |
| Feb | 16.9 km/h | – | – |
| Mar | 15.8 km/h | – | – |
| Apr | 9.8 km/h | – | – |
| May | 15.2 km/h | – | – |
| Jun | 13.1 km/h | – | – |
| Jul | 15.6 km/h | – | – |
| Aug | 12.5 km/h | – | – |
| Sep |
| 12.7 km/h |
| – |
| – |
| Oct | 10.1 km/h | – | – |
| Nov | 15.4 km/h | – | – |
| Dec | 17.1 km/h | – | – |