Bewolking — 2020
| Month | Vielsalm | Stavelot | Difference |
|---|---|---|---|
| Jan | 79 % | 75.4 % | +3.6 |
| Feb | 82.5 % | 82 % | +0.5 |
| Mar | 59.6 % | 58.3 % | +1.3 |
| Apr | 32.5 % | 32.8 % | -0.3 |
| May | 50.7 % | 50.5 % | +0.2 |
| Jun | 63.9 % | 64.3 % | -0.4 |
| Jul | 62.5 % | 63.3 % | -0.8 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |