Wind — 1999
| Mois | Beringen | Heusden-Zolder | Différence |
|---|---|---|---|
| Jan | 17.9 km/h | – | – |
| Fév | 15.4 km/h | – | – |
| Mar | 13.4 km/h | – | – |
| Avr | 13.1 km/h | – | – |
| Mai | 12 km/h | – | – |
| Juin | 12 km/h | – | – |
| Juil | 11.4 km/h | – | – |
| Aoû | 10.6 km/h | – | – |
| Sep |
| 12.4 km/h |
| – |
| – |
| Oct | 15 km/h | – | – |
| Nov | 14.7 km/h | – | – |
| Déc | 19.4 km/h | – | – |