Bewolking — 2020
| Maand | Héron | Andenne | Verschil |
|---|---|---|---|
| Jan | 72 % | 72 % | +0.0 |
| Feb | 78.8 % | 78.8 % | +0.0 |
| Mrt | 56.6 % | 56.6 % | +0.0 |
| Apr | 33.5 % | 33.5 % | +0.0 |
| Mei | 49.5 % | 49.5 % | +0.0 |
| Jun | 62.7 % | 62.7 % | +0.0 |
| Jul | 62.1 % | 62.1 % | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |