Wind — 2025
| Month | Gembloux | Walhain | Difference |
|---|---|---|---|
| Jan | 13.9 km/h | 14.2 km/h | -0.3 |
| Feb | 12.4 km/h | 12.9 km/h | -0.5 |
| Mar | 10.4 km/h | 10.6 km/h | -0.2 |
| Apr | 10.7 km/h | 10.8 km/h | -0.1 |
| May | 12.9 km/h | 12.9 km/h | +0.0 |
| Jun | 12.7 km/h | 12.9 km/h | -0.2 |
| Jul | 11.1 km/h | 11.1 km/h | +0.0 |
| Aug | 11.2 km/h | 11.3 km/h | -0.1 |
| Sep | 15 km/h | 15.5 km/h | -0.5 |
| Oct | 14.9 km/h | 15.2 km/h | -0.3 |
| Nov | 14.4 km/h | 15.1 km/h | -0.7 |
| Dec | 14.7 km/h | 15.3 km/h | -0.6 |