Wind — 2003
| Month | Daverdisse | Bièvre | Difference |
|---|---|---|---|
| Jan | 16.8 km/h | – | – |
| Feb | 13.6 km/h | – | – |
| Mar | 12.6 km/h | – | – |
| Apr | 14.9 km/h | – | – |
| May | 13 km/h | – | – |
| Jun | 10 km/h | – | – |
| Jul | 10.6 km/h | – | – |
| Aug | 9 km/h | – | – |
| Sep |
| 10.6 km/h |
| – |
| – |
| Oct | 15 km/h | – | – |
| Nov | 15.2 km/h | – | – |
| Dec | 15.9 km/h | – | – |