Luchtvochtigheid — 2021
| Month | Court-Saint-Étienne | Ottignies-Louvain-la-Neuve | Difference |
|---|---|---|---|
| Jan | 90.8 % | – | – |
| Feb | 77.2 % | – | – |
| Mar | 77.1 % | – | – |
| Apr | 70.7 % | – | – |
| May | 73.2 % | – | – |
| Jun | 75.3 % | – | – |
| Jul | 81 % | – | – |
| Aug | 82.6 % | – | – |
| Sep |
| 80.1 % |
| – |
| – |
| Oct | 83.3 % | – | – |
| Nov | 91.3 % | – | – |
| Dec | 92.3 % | – | – |