Zonneschijn — 2023
| Month | Manhay | Ferrières | Difference |
|---|---|---|---|
| Jan | – | 87.7 uren | – |
| Feb | – | 153.7 uren | – |
| Mar | 123.3 uren | 164.8 uren | -41.5 |
| Apr | 237.7 uren | 232.3 uren | +5.4 |
| May | 342.1 uren | 340.9 uren | +1.2 |
| Jun | 407.5 uren | 406.6 uren | +0.9 |
| Jul | 329.8 uren | 335.4 uren | -5.6 |
| Aug |
| 299.1 uren |
| 295.6 uren |
| +3.5 |
| Sep | 300.1 uren | 300.8 uren | -0.7 |
| Oct | 193.4 uren | 191.8 uren | +1.6 |
| Nov | 80.1 uren | 92.6 uren | -12.5 |
| Dec | 72.6 uren | 75.4 uren | -2.8 |