Bewolking — 2002
| Month | Court-Saint-Étienne | Ottignies-Louvain-la-Neuve | Difference |
|---|---|---|---|
| Jan | 73.3 % | – | – |
| Feb | 72.2 % | – | – |
| Mar | 70.6 % | – | – |
| Apr | 59 % | – | – |
| May | 73 % | – | – |
| Jun | 68.2 % | – | – |
| Jul | 68.8 % | – | – |
| Aug | 73.5 % | – | – |
| Sep |
| 62 % |
| – |
| – |
| Oct | 76.5 % | – | – |
| Nov | 77.9 % | – | – |
| Dec | 74.6 % | – | – |