Bewolking — 2020
| Month | Mettet | Fosses-la-Ville | Difference |
|---|---|---|---|
| Jan | 71.7 % | 72.1 % | -0.4 |
| Feb | 79.3 % | 78 % | +1.3 |
| Mar | 57 % | 55.9 % | +1.1 |
| Apr | 33.8 % | 33.8 % | +0.0 |
| May | 50 % | 50.1 % | -0.1 |
| Jun | 63.8 % | 63.1 % | +0.7 |
| Jul | 62.7 % | 62.2 % | +0.5 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |