Bewolking — 2020
| Month | Steenwijkerland | Zwartewaterland | Difference |
|---|---|---|---|
| Jan | 81.3 % | 80.7 % | +0.6 |
| Feb | 74.7 % | 75.2 % | -0.5 |
| Mar | 53 % | 53.9 % | -0.9 |
| Apr | 41.4 % | 40.7 % | +0.7 |
| May | 48.4 % | 49 % | -0.6 |
| Jun | 70.2 % | 70.3 % | -0.1 |
| Jul | 64 % | 64.9 % | -0.9 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |