Wind — 1997
| Month | Brunehaut | Tournai | Difference |
|---|---|---|---|
| Jan | 11.4 km/h | – | – |
| Feb | 20.4 km/h | – | – |
| Mar | 12.4 km/h | – | – |
| Apr | 12.5 km/h | – | – |
| May | 13.5 km/h | – | – |
| Jun | 12.5 km/h | – | – |
| Jul | 11 km/h | – | – |
| Aug | 9.3 km/h | – | – |
| Sep |
| 10.2 km/h |
| – |
| – |
| Oct | 13.8 km/h | – | – |
| Nov | 15.5 km/h | – | – |
| Dec | 17.6 km/h | – | – |