Zonneschijn — 2023
| Month | Houffalize | Bastogne | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 124.3 uren | 118.2 uren | +6.1 |
| Apr | 232.1 uren | 216.3 uren | +15.8 |
| May | 348.1 uren | 337.6 uren | +10.5 |
| Jun | 401.9 uren | 398.8 uren | +3.1 |
| Jul | 330.2 uren | 319.6 uren | +10.6 |
| Aug |
| 300.5 uren |
| 292.7 uren |
| +7.8 |
| Sep | 301.3 uren | 288.7 uren | +12.6 |
| Oct | 187 uren | 171.6 uren | +15.4 |
| Nov | 79 uren | 67.5 uren | +11.5 |
| Dec | 68 uren | 64.1 uren | +3.9 |