Bewolking — 2001
| Month | Ottignies-Louvain-la-Neuve | Court-Saint-Étienne | Difference |
|---|---|---|---|
| Jan | – | 67.7 % | – |
| Feb | – | 80.3 % | – |
| Mar | – | 86.6 % | – |
| Apr | – | 77.4 % | – |
| May | – | 55.6 % | – |
| Jun | – | 66.8 % | – |
| Jul | – | 65 % | – |
| Aug | – | 62.3 % | – |
| Sep |
| – |
| 80.1 % |
| – |
| Oct | – | 73.6 % | – |
| Nov | – | 76 % | – |
| Dec | – | 64.8 % | – |