Zonneschijn — 2023
| Month | Stoumont | Spa | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 119.2 uren | 120.5 uren | -1.3 |
| Apr | 237.2 uren | 231.4 uren | +5.8 |
| May | 336.1 uren | 332.2 uren | +3.9 |
| Jun | 400 uren | 390.5 uren | +9.5 |
| Jul | 335.6 uren | 334 uren | +1.6 |
| Aug |
| 291.6 uren |
| 287.4 uren |
| +4.2 |
| Sep | 296.2 uren | 294.1 uren | +2.1 |
| Oct | 192 uren | 194.8 uren | -2.8 |
| Nov | 73.2 uren | 76.7 uren | -3.5 |
| Dec | 67.8 uren | 67.3 uren | +0.5 |