Zonneschijn — 2021
| Month | Manhay | Ferrières | Difference |
|---|---|---|---|
| Jan | – | 67.9 uren | – |
| Feb | – | 180.4 uren | – |
| Mar | – | 234.6 uren | – |
| Apr | – | 303.8 uren | – |
| May | – | 314.4 uren | – |
| Jun | – | 305.2 uren | – |
| Jul | – | 298 uren | – |
| Aug | – | 301 uren | – |
| Sep |
| – |
| 275.3 uren |
| – |
| Oct | – | 196.6 uren | – |
| Nov | – | 113.5 uren | – |
| Dec | – | 64.9 uren | – |