Zonneschijn — 2013
| Month | Aiseau-Presles | Châtelet | Difference |
|---|---|---|---|
| Jan | – | 87.5 uren | – |
| Feb | – | 137.3 uren | – |
| Mar | – | 183.2 uren | – |
| Apr | – | 254.9 uren | – |
| May | – | 261.5 uren | – |
| Jun | – | 307.9 uren | – |
| Jul | – | 379.1 uren | – |
| Aug | – | 339 uren | – |
| Sep |
| – |
| 260.7 uren |
| – |
| Oct | – | 191.2 uren | – |
| Nov | – | 85 uren | – |
| Dec | – | 133.5 uren | – |