Wind — 2005
| Month | Ferrières | Manhay | Difference |
|---|---|---|---|
| Jan | 17.9 km/h | – | – |
| Feb | 14.9 km/h | – | – |
| Mar | 13.2 km/h | – | – |
| Apr | 12.5 km/h | – | – |
| May | 13.3 km/h | – | – |
| Jun | 10.5 km/h | – | – |
| Jul | 12.8 km/h | – | – |
| Aug | 11.9 km/h | – | – |
| Sep |
| 11.1 km/h |
| – |
| – |
| Oct | 16.3 km/h | – | – |
| Nov | 15.2 km/h | – | – |
| Dec | 15.5 km/h | – | – |