Zonneschijn — 2023
| Monat | Haarlem | Heemstede | Unterschied |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mär | 86.2 uren | – | – |
| Apr | 264.9 uren | – | – |
| Mai | 360.4 uren | – | – |
| Jun | 391.1 uren | – | – |
| Jul | 368.5 uren | – | – |
| Aug | 335.2 uren | – | – |
| Sep |
| 281.3 uren |
| – |
| – |
| Okt | 166.8 uren | – | – |
| Nov | 115.9 uren | – | – |
| Dez | 80.2 uren | – | – |