Luchtvochtigheid — 2020
| Maand | Hardinxveld-Giessendam | Altena | Verschil |
|---|---|---|---|
| Jan | 89.3 % | 89.2 % | +0.1 |
| Feb | 80.5 % | 80.4 % | +0.1 |
| Mrt | 72.5 % | 72.2 % | +0.3 |
| Apr | 64 % | 63.6 % | +0.4 |
| Mei | 64.6 % | 64.4 % | +0.2 |
| Jun | 71.9 % | 71.2 % | +0.7 |
| Jul | 76.3 % | 76.1 % | +0.2 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |