Bewolking — 2020
| Month | Dijk en Waard | Koggenland | Difference |
|---|---|---|---|
| Jan | 80.1 % | 80.5 % | -0.4 |
| Feb | 73.9 % | 73.8 % | +0.1 |
| Mar | 50.6 % | 51 % | -0.4 |
| Apr | 42.5 % | 42.3 % | +0.2 |
| May | 45 % | 45.8 % | -0.8 |
| Jun | 66.1 % | 67.7 % | -1.6 |
| Jul | 62.2 % | 62.9 % | -0.7 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |