Zonneschijn — 2017
| Month | Ferrières | Hamoir | 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 | – | – |