Bewolking — 2020
| Month | Hardinxveld-Giessendam | Molenlanden | Difference |
|---|---|---|---|
| Jan | 78.6 % | 79.1 % | -0.5 |
| Feb | 74.8 % | 74.3 % | +0.5 |
| Mar | 53 % | 53.6 % | -0.6 |
| Apr | 36.1 % | 38.3 % | -2.2 |
| May | 47.8 % | 47.4 % | +0.4 |
| Jun | 65.3 % | 66.2 % | -0.9 |
| Jul | 63 % | 63.1 % | -0.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |