Wind — 2009
| Mois | Charleroi | Châtelet | Différence |
|---|---|---|---|
| Jan | – | 14.9 km/h | – |
| Fév | – | 13.5 km/h | – |
| Mar | – | 15.5 km/h | – |
| Avr | – | 11.3 km/h | – |
| Mai | – | 13 km/h | – |
| Juin | – | 11.9 km/h | – |
| Juil | – | 13.7 km/h | – |
| Aoû | – | 11 km/h | – |
| Sep |
| – |
| 13.2 km/h |
| – |
| Oct | – | 14 km/h | – |
| Nov | – | 21.8 km/h | – |
| Déc | – | 16.5 km/h | – |