Bewolking — 2020
| Month | Chièvres | Ath | Difference |
|---|---|---|---|
| Jan | 73.4 % | 75.7 % | -2.3 |
| Feb | 76.2 % | 75.1 % | +1.1 |
| Mar | 53.8 % | 53.4 % | +0.4 |
| Apr | 31.6 % | 32.5 % | -0.9 |
| May | 50.2 % | 49.6 % | +0.6 |
| Jun | 63 % | 62.3 % | +0.7 |
| Jul | 60.8 % | 61.1 % | -0.3 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |