Zonneschijn — 1997
| Month | Sombreffe | Villers-la-Ville | 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 | – |