Zonneschijn — 2025
| Maand | Sliedrecht | Hardinxveld-Giessendam | Verschil |
|---|---|---|---|
| Jan | – | 100.3 uren | – |
| Feb | – | 145.4 uren | – |
| Mrt | – | 306.9 uren | – |
| Apr | – | 325.3 uren | – |
| Mei | – | 382.5 uren | – |
| Jun | – | 390.2 uren | – |
| Jul | – | 391.2 uren | – |
| Aug | – | 339 uren | – |
| Sep | – | 271.1 uren | – |
| Okt | – | 148 uren | – |
| Nov | – | 116.6 uren | – |
| Dec | – | 100.1 uren | – |