Zonneschijn — 2023
| Month | Kelmis | Plombières | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 137.6 uren | 138.5 uren | -0.9 |
| Apr | 222.6 uren | 226.5 uren | -3.9 |
| May | 342.7 uren | 346.7 uren | -4.0 |
| Jun | 388 uren | 389.2 uren | -1.2 |
| Jul | 331.7 uren | 336.6 uren | -4.9 |
| Aug |
| 303.5 uren |
| 304.2 uren |
| -0.7 |
| Sep | 295.4 uren | 292.2 uren | +3.2 |
| Oct | 199.9 uren | 204.6 uren | -4.7 |
| Nov | 93.6 uren | 98.7 uren | -5.1 |
| Dec | 71.4 uren | 74.2 uren | -2.8 |