Wind — 2025
| Month | Walcourt | Ham-sur-Heure-Nalinnes | Difference |
|---|---|---|---|
| Jan | 14.4 km/h | 14.3 km/h | +0.1 |
| Feb | 13 km/h | 13 km/h | +0.0 |
| Mar | 11.4 km/h | 11.3 km/h | +0.1 |
| Apr | 11.3 km/h | 11.3 km/h | +0.0 |
| May | 12.6 km/h | 12.8 km/h | -0.2 |
| Jun | 12.3 km/h | 12.4 km/h | -0.1 |
| Jul | 11.2 km/h | 11.1 km/h | +0.1 |
| Aug | 10.8 km/h | 10.8 km/h | +0.0 |
| Sep | 15 km/h | 15 km/h | +0.0 |
| Oct | 15.4 km/h | 15.2 km/h | +0.2 |
| Nov | 15 km/h | 15.2 km/h | -0.2 |
| Dec | 15 km/h | 15.2 km/h | -0.2 |