Zonneschijn — 2023
| Month | Attert | Arlon | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 132.9 uren | 135.7 uren | -2.8 |
| Apr | 244.3 uren | 244.4 uren | -0.1 |
| May | 367.1 uren | 368 uren | -0.9 |
| Jun | 409.9 uren | 409.6 uren | +0.3 |
| Jul | 336.7 uren | 334.6 uren | +2.1 |
| Aug |
| 312.9 uren |
| 312.8 uren |
| +0.1 |
| Sep | 311.5 uren | 313.6 uren | -2.1 |
| Oct | 181.9 uren | 184.6 uren | -2.7 |
| Nov | 78.3 uren | 80.2 uren | -1.9 |
| Dec | 55.6 uren | 54.3 uren | +1.3 |