Bewolking — 2023
| Month | Plombières | Vaals | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.1 % | 100 % | -12.9 |
| Apr | 68.8 % | 68.3 % | +0.5 |
| May | 65.1 % | 65.1 % | +0.0 |
| Jun | 42.9 % | 43.3 % | -0.4 |
| Jul | 66.2 % | 65.9 % | +0.3 |
| Aug |
| 60.4 % |
| 60.1 % |
| +0.3 |
| Sep | 57 % | 57.7 % | -0.7 |
| Oct | 77.8 % | 77.5 % | +0.3 |
| Nov | 83.2 % | 81.6 % | +1.6 |
| Dec | 88.7 % | 88.2 % | +0.5 |