Bewolking — 2020
| Month | Olst-Wijhe | Heerde | Difference |
|---|---|---|---|
| Jan | 80.5 % | 80.7 % | -0.2 |
| Feb | 76.4 % | 75.2 % | +1.2 |
| Mar | 54.6 % | 53.9 % | +0.7 |
| Apr | 39 % | 40.7 % | -1.7 |
| May | 50.8 % | 49 % | +1.8 |
| Jun | 70.2 % | 70.3 % | -0.1 |
| Jul | 65.7 % | 64.9 % | +0.8 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |