Zonneschijn — 2023
| Month | Herstal | Beyne-Heusay | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 140.5 uren | 137.5 uren | +3.0 |
| Apr | 224 uren | 228.8 uren | -4.8 |
| May | 330.8 uren | 331.4 uren | -0.6 |
| Jun | 385.3 uren | 391.2 uren | -5.9 |
| Jul | 329.2 uren | 334.5 uren | -5.3 |
| Aug |
| 296.4 uren |
| 293.6 uren |
| +2.8 |
| Sep | 279 uren | 285.6 uren | -6.6 |
| Oct | 194.8 uren | 193.2 uren | +1.6 |
| Nov | 89.1 uren | 87.2 uren | +1.9 |
| Dec | 74.6 uren | 73.8 uren | +0.8 |