Zonneschijn — 2020
| Month | Ridderkerk | Hendrik-Ido-Ambacht | Difference |
|---|---|---|---|
| Jan | 144.7 uren | 144 uren | +0.7 |
| Feb | 184.4 uren | 185 uren | -0.6 |
| Mar | 299.1 uren | 299.5 uren | -0.4 |
| Apr | 367.1 uren | 367.1 uren | +0.0 |
| May | 428.9 uren | 428.9 uren | +0.0 |
| Jun | 419.8 uren | 419.9 uren | -0.1 |
| Jul | 415.3 uren | 412.2 uren | +3.1 |
| Aug | – | – | – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |