Zonneschijn — 2001
| Month | Manhay | Ferrières | Difference |
|---|---|---|---|
| Jan | – | 119.6 uren | – |
| Feb | – | 146 uren | – |
| Mar | – | 138.8 uren | – |
| Apr | – | 248.8 uren | – |
| May | – | 355.9 uren | – |
| Jun | – | 321.4 uren | – |
| Jul | – | 333.1 uren | – |
| Aug | – | 339.8 uren | – |
| Sep |
| – |
| 184.2 uren |
| – |
| Oct | – | 194.2 uren | – |
| Nov | – | 133.2 uren | – |
| Dec | – | 100.4 uren | – |