Zonneschijn — 1997
| Month | Villers-la-Ville | Genappe | Difference |
|---|---|---|---|
| Jan | 145.7 uren | – | – |
| Feb | 126 uren | – | – |
| Mar | 216.8 uren | – | – |
| Apr | 284.3 uren | – | – |
| May | 336.2 uren | – | – |
| Jun | 308.6 uren | – | – |
| Jul | 341.7 uren | – | – |
| Aug | 342.5 uren | – | – |
| Sep |
| 290.3 uren |
| – |
| – |
| Oct | 206.7 uren | – | – |
| Nov | 109.9 uren | – | – |
| Dec | 69.9 uren | – | – |