Wind — 1999
| Mois | Bocholt | Bree | Différence |
|---|---|---|---|
| Jan | 17.5 km/h | – | – |
| Fév | 15.5 km/h | – | – |
| Mar | 13.1 km/h | – | – |
| Avr | 12.9 km/h | – | – |
| Mai | 12.2 km/h | – | – |
| Juin | 12.1 km/h | – | – |
| Juil | 11.6 km/h | – | – |
| Aoû | 10.7 km/h | – | – |
| Sep |
| 12.2 km/h |
| – |
| – |
| Oct | 15 km/h | – | – |
| Nov | 14.5 km/h | – | – |
| Déc | 19 km/h | – | – |