Zonneschijn — 2004
| Month | Wellen | Borgloon | Difference |
|---|---|---|---|
| Jan | – | 95.1 uren | – |
| Feb | – | 150.2 uren | – |
| Mar | – | 244.9 uren | – |
| Apr | – | 277.3 uren | – |
| May | – | 325.8 uren | – |
| Jun | – | 338.8 uren | – |
| Jul | – | 342 uren | – |
| Aug | – | 318.7 uren | – |
| Sep |
| – |
| 273 uren |
| – |
| Oct | – | 232 uren | – |
| Nov | – | 132.1 uren | – |
| Dec | – | 120.3 uren | – |