Zonneschijn — 2004
| Month | Aiseau-Presles | Châtelet | Difference |
|---|---|---|---|
| Jan | – | 89.7 uren | – |
| Feb | – | 151.4 uren | – |
| Mar | – | 247.1 uren | – |
| Apr | – | 282.5 uren | – |
| May | – | 338.9 uren | – |
| Jun | – | 337.1 uren | – |
| Jul | – | 358.8 uren | – |
| Aug | – | 321.5 uren | – |
| Sep |
| – |
| 272.2 uren |
| – |
| Oct | – | 228.3 uren | – |
| Nov | – | 118.1 uren | – |
| Dec | – | 128.5 uren | – |