Zonneschijn — 2023
| Month | Houffalize | Lierneux | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 124.3 uren | 117.6 uren | +6.7 |
| Apr | 232.1 uren | 228.7 uren | +3.4 |
| May | 348.1 uren | 323.4 uren | +24.7 |
| Jun | 401.9 uren | 394.6 uren | +7.3 |
| Jul | 330.2 uren | 320.9 uren | +9.3 |
| Aug |
| 300.5 uren |
| 282.1 uren |
| +18.4 |
| Sep | 301.3 uren | 282.2 uren | +19.1 |
| Oct | 187 uren | 180.3 uren | +6.7 |
| Nov | 79 uren | 63.9 uren | +15.1 |
| Dec | 68 uren | 63.5 uren | +4.5 |