Luchtvochtigheid — 2020
| Maand | Alphen aan den Rijn | Kaag en Braassem | Verschil |
|---|---|---|---|
| Jan | 89.5 % | 88.7 % | +0.8 |
| Feb | 80.7 % | 80.4 % | +0.3 |
| Mrt | 73.4 % | 74.3 % | -0.9 |
| Apr | 66 % | 68.3 % | -2.3 |
| Mei | 68 % | 71.4 % | -3.4 |
| Jun | 73.7 % | 76.1 % | -2.4 |
| Jul | 77.3 % | 77.7 % | -0.4 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |