Wind — 2013
| Month | Assesse | Ciney | Difference |
|---|---|---|---|
| Jan | 14.1 km/h | – | – |
| Feb | 14.6 km/h | – | – |
| Mar | 13.8 km/h | – | – |
| Apr | 14.1 km/h | – | – |
| May | 12.7 km/h | – | – |
| Jun | 13.6 km/h | – | – |
| Jul | 11.2 km/h | – | – |
| Aug | 10.2 km/h | – | – |
| Sep |
| 11.7 km/h |
| – |
| – |
| Oct | 16.5 km/h | – | – |
| Nov | 15.4 km/h | – | – |
| Dec | 19 km/h | – | – |