Wind — 2013
| Month | Ferrières | Hamoir | Difference |
|---|---|---|---|
| Jan | 14.5 km/h | – | – |
| Feb | 14.5 km/h | – | – |
| Mar | 13.9 km/h | – | – |
| Apr | 13.9 km/h | – | – |
| May | 12.5 km/h | – | – |
| Jun | 13.3 km/h | – | – |
| Jul | 10.8 km/h | – | – |
| Aug | 10 km/h | – | – |
| Sep |
| 12.1 km/h |
| – |
| – |
| Oct | 16.7 km/h | – | – |
| Nov | 15.4 km/h | – | – |
| Dec | 18.6 km/h | – | – |