Wind — 2009
| Month | Hoegaarden | Tienen | Difference |
|---|---|---|---|
| Jan | 14.5 km/h | – | – |
| Feb | 13.6 km/h | – | – |
| Mar | 15.5 km/h | – | – |
| Apr | 10.9 km/h | – | – |
| May | 12.9 km/h | – | – |
| Jun | 11.7 km/h | – | – |
| Jul | 13.7 km/h | – | – |
| Aug | 10.9 km/h | – | – |
| Sep |
| 13.1 km/h |
| – |
| – |
| Oct | 13.9 km/h | – | – |
| Nov | 21.8 km/h | – | – |
| Dec | 16.3 km/h | – | – |