Wind — 1999
| Month | Bocholt | Oudsbergen | Difference |
|---|---|---|---|
| Jan | 17.5 km/h | – | – |
| Feb | 15.5 km/h | – | – |
| Mar | 13.1 km/h | – | – |
| Apr | 12.9 km/h | – | – |
| May | 12.2 km/h | – | – |
| Jun | 12.1 km/h | – | – |
| Jul | 11.6 km/h | – | – |
| Aug | 10.7 km/h | – | – |
| Sep |
| 12.2 km/h |
| – |
| – |
| Oct | 15 km/h | – | – |
| Nov | 14.5 km/h | – | – |
| Dec | 19 km/h | – | – |