Zonneschijn — 1997
| Month | Villers-la-Ville | Court-Saint-Étienne | Difference |
|---|---|---|---|
| Jan | 145.7 uren | 147.9 uren | -2.2 |
| Feb | 126 uren | 132.3 uren | -6.3 |
| Mar | 216.8 uren | 222.4 uren | -5.6 |
| Apr | 284.3 uren | 285.9 uren | -1.6 |
| May | 336.2 uren | 332.9 uren | +3.3 |
| Jun | 308.6 uren | 311.5 uren | -2.9 |
| Jul | 341.7 uren | 348.6 uren |
| Aug | 342.5 uren | 347.2 uren | -4.7 |
| Sep | 290.3 uren | 287.8 uren | +2.5 |
| Oct | 206.7 uren | 202.9 uren | +3.8 |
| Nov | 109.9 uren | 108.7 uren | +1.2 |
| Dec | 69.9 uren | 70.9 uren | -1.0 |