Zonneschijn — 2023
| Monat | Leiden | Leiderdorp | Unterschied |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mär | 90.6 uren | – | – |
| Apr | 260.8 uren | – | – |
| Mai | 370.9 uren | – | – |
| Jun | 397.7 uren | – | – |
| Jul | 378.2 uren | – | – |
| Aug | 345.9 uren | – | – |
| Sep |
| 288 uren |
| – |
| – |
| Okt | 174.4 uren | – | – |
| Nov | 122.2 uren | – | – |
| Dez | 85 uren | – | – |