Wind — 1998
| Mois | Geraardsbergen | Lierde | Différence |
|---|---|---|---|
| Jan | – | 19 km/h | – |
| Fév | – | 12.8 km/h | – |
| Mar | – | 15.5 km/h | – |
| Avr | – | 14.6 km/h | – |
| Mai | – | 11.6 km/h | – |
| Juin | – | 14.1 km/h | – |
| Juil | – | 14.2 km/h | – |
| Aoû | – | 11.1 km/h | – |
| Sep |
| – |
| 14.6 km/h |
| – |
| Oct | – | 18 km/h | – |
| Nov | – | 13.7 km/h | – |
| Déc | – | 16.8 km/h | – |