Bewolking — 2020
| Month | Pijnacker-Nootdorp | Delft | Difference |
|---|---|---|---|
| Jan | 77.9 % | 77.1 % | +0.8 |
| Feb | 73.8 % | 73.4 % | +0.4 |
| Mar | 53.2 % | 52.7 % | +0.5 |
| Apr | 37.7 % | 37 % | +0.7 |
| May | 46.5 % | 45.8 % | +0.7 |
| Jun | 65.7 % | 64.5 % | +1.2 |
| Jul | 62 % | 60.3 % | +1.7 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |