Gevoelstemperatuur — 2020
| Maand | Alphen aan den Rijn | Kaag en Braassem | Verschil |
|---|---|---|---|
| Jan | 3.6 °C | 3.5 °C | +0.1 |
| Feb | 4.2 °C | 3.6 °C | +0.6 |
| Mrt | 4.2 °C | 3.7 °C | +0.5 |
| Apr | 9.9 °C | 9.1 °C | +0.8 |
| Mei | 12.5 °C | 11.8 °C | +0.7 |
| Jun | 11.7 °C | 15.7 °C | -4.0 |
| Jul | 15 °C | 14.9 °C | +0.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |