Bewolking — 2020
| Month | Achtkarspelen | Opsterland | Difference |
|---|---|---|---|
| Jan | 82.1 % | 82 % | +0.1 |
| Feb | 74.2 % | 74.3 % | -0.1 |
| Mar | 53.1 % | 52.3 % | +0.8 |
| Apr | 44.4 % | 42.4 % | +2.0 |
| May | 49.7 % | 48.6 % | +1.1 |
| Jun | 70.5 % | 71 % | -0.5 |
| Jul | 65.3 % | 63.6 % | +1.7 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |