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