Wind — 2009
| Mois | Bocholt | Bree | Différence |
|---|---|---|---|
| Jan | 13.3 km/h | – | – |
| Fév | 12.5 km/h | – | – |
| Mar | 13.7 km/h | – | – |
| Avr | 9.9 km/h | – | – |
| Mai | 12.6 km/h | – | – |
| Juin | 11 km/h | – | – |
| Juil | 12.7 km/h | – | – |
| Aoû | 10.4 km/h | – | – |
| Sep |
| 12.4 km/h |
| – |
| – |
| Oct | 12.8 km/h | – | – |
| Nov | 19.3 km/h | – | – |
| Déc | 14.4 km/h | – | – |