Zonneschijn — 2023
| Maand | Ridderkerk | Zwijndrecht | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 0 uren | 121.4 uren | -121.4 |
| Apr | 247.7 uren | 239.3 uren | +8.4 |
| Mei | 353.9 uren | 349 uren | +4.9 |
| Jun | 392.6 uren | 396.4 uren | -3.8 |
| Jul | 351.8 uren | 345.2 uren | +6.6 |
| Aug |
| 332.3 uren |
| 319.4 uren |
| +12.9 |
| Sep | 276.2 uren | 276.8 uren | -0.6 |
| Okt | 177.3 uren | 196.2 uren | -18.9 |
| Nov | 122.8 uren | 121.8 uren | +1.0 |
| Dec | 73.3 uren | 71.9 uren | +1.4 |