Zonneschijn — 2015
| Month | Érezée | Ferrières | Difference |
|---|---|---|---|
| Jan | – | 91.1 uren | – |
| Feb | – | 166 uren | – |
| Mar | – | 217.2 uren | – |
| Apr | – | 302.8 uren | – |
| May | – | 321 uren | – |
| Jun | – | 330.6 uren | – |
| Jul | – | 329.7 uren | – |
| Aug | – | 304.1 uren | – |
| Sep |
| – |
| 244.9 uren |
| – |
| Oct | – | 125.7 uren | – |
| Nov | – | 121.6 uren | – |
| Dec | – | 137.9 uren | – |