Wind — 2026
| Month | Lierneux | Stoumont | Difference |
|---|---|---|---|
| Jan | 13.7 km/h | 14.2 km/h | -0.5 |
| Feb | 15.8 km/h | 16.2 km/h | -0.4 |
| Mar | 10.5 km/h | 8.1 km/h | +2.4 |
| Apr | 9 km/h | 6.7 km/h | +2.3 |
| May | 11.1 km/h | 11.4 km/h | -0.3 |
| Jun | 12.2 km/h | 12.6 km/h | -0.4 |
| Jul | 11.8 km/h | 11.7 km/h | +0.1 |
| Aug | 12.6 km/h | 12.7 km/h | -0.1 |
| Sep | 11.1 km/h | 9.6 km/h | +1.5 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |