Wind — 2003
| Month | Rijkevorsel | Merksplas | Difference |
|---|---|---|---|
| Jan | 16.2 km/h | 16.2 km/h | +0.0 |
| Feb | 12 km/h | 12 km/h | +0.0 |
| Mar | 11.7 km/h | 11.7 km/h | +0.0 |
| Apr | 13.7 km/h | 13.7 km/h | +0.0 |
| May | 12.4 km/h | 12.4 km/h | +0.0 |
| Jun | 10.5 km/h | 10.5 km/h | +0.0 |
| Jul | 10.9 km/h | 10.9 km/h | +0.0 |
| Aug | 9.5 km/h | 9.5 km/h | +0.0 |
| Sep | 9.3 km/h | 9.3 km/h | +0.0 |
| Oct | 13.6 km/h | 13.6 km/h | +0.0 |
| Nov | 13.4 km/h | 13.4 km/h | +0.0 |
| Dec | 14.6 km/h | 14.6 km/h | +0.0 |