Bewolking — 2020
| Month | Voorst | Brummen | Difference |
|---|---|---|---|
| Jan | 80.9 % | 80.3 % | +0.6 |
| Feb | 75.9 % | 76.4 % | -0.5 |
| Mar | 54.4 % | 53.7 % | +0.7 |
| Apr | 39 % | 37.3 % | +1.7 |
| May | 50.3 % | 50.8 % | -0.5 |
| Jun | 69.8 % | 68.9 % | +0.9 |
| Jul | 65.9 % | 65.1 % | +0.8 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |