Zonneschijn — 2013
| Month | Ferrières | Hamoir | Difference |
|---|---|---|---|
| Jan | 70.8 uren | – | – |
| Feb | 130.9 uren | – | – |
| Mar | 177.8 uren | – | – |
| Apr | 239.8 uren | – | – |
| May | 232 uren | – | – |
| Jun | 306.7 uren | – | – |
| Jul | 377.2 uren | – | – |
| Aug | 329.5 uren | – | – |
| Sep |
| 229.7 uren |
| – |
| – |
| Oct | 172.8 uren | – | – |
| Nov | 78.2 uren | – | – |
| Dec | 111.1 uren | – | – |