Zonneschijn — 2017
| Month | Manhay | Ferrières | Difference |
|---|---|---|---|
| Jan | – | 139.4 uren | – |
| Feb | – | 118.4 uren | – |
| Mar | – | 225 uren | – |
| Apr | – | 280.3 uren | – |
| May | – | 320.9 uren | – |
| Jun | – | 346.1 uren | – |
| Jul | – | 312.9 uren | – |
| Aug | – | 264.4 uren | – |
| Sep |
| – |
| 241.7 uren |
| – |
| Oct | – | 180.9 uren | – |
| Nov | – | 120.2 uren | – |
| Dec | – | 37 uren | – |