Wind — 2004
| Mois | Châtelet | Gerpinnes | Différence |
|---|---|---|---|
| Jan | 18.6 km/h | – | – |
| Fév | 16.2 km/h | – | – |
| Mar | 14.7 km/h | – | – |
| Avr | 13.8 km/h | – | – |
| Mai | 10.9 km/h | – | – |
| Juin | 13.1 km/h | – | – |
| Juil | 12.3 km/h | – | – |
| Aoû | 13.8 km/h | – | – |
| Sep |
| 15.6 km/h |
| – |
| – |
| Oct | 17 km/h | – | – |
| Nov | 12.7 km/h | – | – |
| Déc | 12.7 km/h | – | – |