Zonneschijn — 2020
| Maand | Capelle aan den IJssel | Ridderkerk | Verschil |
|---|---|---|---|
| Jan | 146.1 uren | 144.7 uren | +1.4 |
| Feb | 184.5 uren | 184.4 uren | +0.1 |
| Mrt | 301.5 uren | 299.1 uren | +2.4 |
| Apr | 367.1 uren | 367.1 uren | +0.0 |
| Mei | 429.8 uren | 428.9 uren | +0.9 |
| Jun | 422.6 uren | 419.8 uren | +2.8 |
| Jul | 418.4 uren | 415.3 uren |
| Aug | – | – | – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |