Bewolking — 2023
| Month | Plombières | Kelmis | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 87.1 % | 87.2 % | -0.1 |
| Apr | 68.8 % | 69.6 % | -0.8 |
| May | 65.1 % | 65.4 % | -0.3 |
| Jun | 42.9 % | 43.8 % | -0.9 |
| Jul | 66.2 % | 65.7 % | +0.5 |
| Aug |
| 60.4 % |
| 60.2 % |
| +0.2 |
| Sep | 57 % | 57.2 % | -0.2 |
| Oct | 77.8 % | 77.8 % | +0.0 |
| Nov | 83.2 % | 84.4 % | -1.2 |
| Dec | 88.7 % | 89.5 % | -0.8 |