Wind — 2001
| Month | Châtelet | Aiseau-Presles | Difference |
|---|---|---|---|
| Jan | 16.2 km/h | – | – |
| Feb | 16.4 km/h | – | – |
| Mar | 15.1 km/h | – | – |
| Apr | 15.6 km/h | – | – |
| May | 14 km/h | – | – |
| Jun | 12.4 km/h | – | – |
| Jul | 13 km/h | – | – |
| Aug | 12.8 km/h | – | – |
| Sep |
| 15.4 km/h |
| – |
| – |
| Oct | 16.9 km/h | – | – |
| Nov | 12.8 km/h | – | – |
| Dec | 15.3 km/h | – | – |