Wind — 2003
| Mois | Ferrières | Érezée | Différence |
|---|---|---|---|
| Jan | 17.3 km/h | – | – |
| Fév | 14 km/h | – | – |
| Mar | 12.9 km/h | – | – |
| Avr | 14.7 km/h | – | – |
| Mai | 13.2 km/h | – | – |
| Juin | 10 km/h | – | – |
| Juil | 11 km/h | – | – |
| Aoû | 8.9 km/h | – | – |
| Sep |
| 11 km/h |
| – |
| – |
| Oct | 15.3 km/h | – | – |
| Nov | 15.9 km/h | – | – |
| Déc | 16.4 km/h | – | – |