Zonneschijn — 2025
| Maand | Krimpen aan den IJssel | Ridderkerk | Verschil |
|---|---|---|---|
| Jan | 94.8 uren | 94.4 uren | +0.4 |
| Feb | 147.1 uren | 145 uren | +2.1 |
| Mrt | 305.5 uren | 303.2 uren | +2.3 |
| Apr | 329.1 uren | 328.9 uren | +0.2 |
| Mei | 378.4 uren | 375.3 uren | +3.1 |
| Jun | 394.6 uren | 391.5 uren | +3.1 |
| Jul | 390.6 uren | 389.5 uren | +1.1 |
| Aug | 344.5 uren | 338.2 uren | +6.3 |
| Sep | 272.6 uren | 271.4 uren | +1.2 |
| Okt | 150.5 uren | 141.1 uren | +9.4 |
| Nov | 119.2 uren | 114.8 uren | +4.4 |
| Dec | 98.3 uren | 99.9 uren | -1.6 |