Temperatuur — 2024
| Month | Hardinxveld-Giessendam | Sliedrecht | Difference |
|---|---|---|---|
| Jan | 3.7 °C | – | – |
| Feb | 8 °C | – | – |
| Mar | 8.8 °C | – | – |
| Apr | 10.6 °C | – | – |
| May | 15.2 °C | – | – |
| Jun | 15.6 °C | – | – |
| Jul | 17.9 °C | – | – |
| Aug | 19.4 °C | – | – |
| Sep |
| 15.9 °C |
| – |
| – |
| Oct | 12.2 °C | – | – |
| Nov | 7.3 °C | – | – |
| Dec | 6.1 °C | – | – |