Zonneschijn — 2023
| Month | Altena | Gorinchem | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | – | 0 uren | – |
| Apr | – | 250.2 uren | – |
| May | – | 363.8 uren | – |
| Jun | – | 392.6 uren | – |
| Jul | – | 357.4 uren | – |
| Aug | – | 337.5 uren | – |
| Sep |
| – |
| 280.6 uren |
| – |
| Oct | – | 180.2 uren | – |
| Nov | – | 131.6 uren | – |
| Dec | – | 70 uren | – |