Luchtvochtigheid — 2020
| Month | Maassluis | Vlaardingen | Difference |
|---|---|---|---|
| Jan | 88.1 % | 88.1 % | +0.0 |
| Feb | 79.8 % | 79.8 % | +0.0 |
| Mar | 73.4 % | 73.4 % | +0.0 |
| Apr | 67.4 % | 67.4 % | +0.0 |
| May | 68.7 % | 68.7 % | +0.0 |
| Jun | 74.8 % | 74.8 % | +0.0 |
| Jul | 75.7 % | 75.7 % | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |