Wind — 2026
| Month | Bouillon | Bièvre | Difference |
|---|---|---|---|
| Jan | 12.6 km/h | 15.7 km/h | -3.1 |
| Feb | 14.8 km/h | 17.4 km/h | -2.6 |
| Mar | 8.3 km/h | 9.7 km/h | -1.4 |
| Apr | 8 km/h | 10.8 km/h | -2.8 |
| May | 10.8 km/h | 11.1 km/h | -0.3 |
| Jun | 12 km/h | 12.1 km/h | -0.1 |
| Jul | 11.8 km/h | 11.6 km/h | +0.2 |
| Aug | 12.2 km/h | 12.2 km/h | +0.0 |
| Sep | 8.5 km/h | 10 km/h | -1.5 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |