Bewolking — 2020
| Maand | Dijk en Waard | Alkmaar | Verschil |
|---|---|---|---|
| Jan | 80.1 % | 80.1 % | +0.0 |
| Feb | 73.9 % | 73.9 % | +0.0 |
| Mrt | 50.6 % | 50.6 % | +0.0 |
| Apr | 42.5 % | 42.5 % | +0.0 |
| Mei | 45 % | 45 % | +0.0 |
| Jun | 66.1 % | 66.1 % | +0.0 |
| Jul | 62.2 % | 62.2 % | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |