Bewolking — 2020
| Maand | Drechterland | Hoorn | Verschil |
|---|---|---|---|
| Jan | 80.7 % | 80.5 % | +0.2 |
| Feb | 73.7 % | 73.8 % | -0.1 |
| Mrt | 51.2 % | 51 % | +0.2 |
| Apr | 41.5 % | 42.3 % | -0.8 |
| Mei | 45.2 % | 45.8 % | -0.6 |
| Jun | 67.4 % | 67.7 % | -0.3 |
| Jul | 62.7 % | 62.9 % | -0.2 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |