Bewolking — 1997
| Month | Villers-la-Ville | Court-Saint-Étienne | Difference |
|---|---|---|---|
| Jan | 68.7 % | 70 % | -1.3 |
| Feb | 81.6 % | 80.9 % | +0.7 |
| Mar | 67.1 % | 66.9 % | +0.2 |
| Apr | 57.5 % | 57 % | +0.5 |
| May | 66.1 % | 65.2 % | +0.9 |
| Jun | 73.6 % | 72.4 % | +1.2 |
| Jul | 68.4 % | 67.4 % | +1.0 |
| Aug |
| 54.3 % |
| 53.1 % |
| +1.2 |
| Sep | 57.7 % | 58.5 % | -0.8 |
| Oct | 60.3 % | 59.6 % | +0.7 |
| Nov | 80.8 % | 82.3 % | -1.5 |
| Dec | 88.8 % | 87.7 % | +1.1 |