Bewolking — 2018
| Month | Ottignies-Louvain-la-Neuve | Court-Saint-Étienne | Difference |
|---|---|---|---|
| Jan | – | 80.6 % | – |
| Feb | – | 49.6 % | – |
| Mar | – | 81 % | – |
| Apr | – | 65.1 % | – |
| May | – | 51.3 % | – |
| Jun | – | 63.5 % | – |
| Jul | – | 44.4 % | – |
| Aug | – | 57 % | – |
| Sep |
| – |
| 56 % |
| – |
| Oct | – | 61.9 % | – |
| Nov | – | 64.6 % | – |
| Dec | – | 74.3 % | – |