Wind — 2023
| Month | Harderwijk | Ermelo | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 18.8 km/h | 15 km/h | +3.8 |
| Apr | 14.5 km/h | 14.8 km/h | -0.3 |
| May | 12.6 km/h | 12.9 km/h | -0.3 |
| Jun | 13.4 km/h | 13.7 km/h | -0.3 |
| Jul | 16.2 km/h | 16.4 km/h | -0.2 |
| Aug |
| 12.9 km/h |
| 13 km/h |
| -0.1 |
| Sep | 11.9 km/h | 12.1 km/h | -0.2 |
| Oct | 16.6 km/h | 16.8 km/h | -0.2 |
| Nov | 18.9 km/h | 19.1 km/h | -0.2 |
| Dec | 19.9 km/h | 20 km/h | -0.1 |