Bewolking — 2023
| Month | Bastogne | Houffalize | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 91.8 % | 90.1 % | +1.7 |
| Apr | 71.6 % | 70.5 % | +1.1 |
| May | 61.8 % | 61.4 % | +0.4 |
| Jun | 41.7 % | 41.8 % | -0.1 |
| Jul | 63.9 % | 63.6 % | +0.3 |
| Aug |
| 59.5 % |
| 59.8 % |
| -0.3 |
| Sep | 53.8 % | 53.5 % | +0.3 |
| Oct | 78.5 % | 78.5 % | +0.0 |
| Nov | 90.9 % | 89.6 % | +1.3 |
| Dec | 94.6 % | 92.8 % | +1.8 |