Zonneschijn — 2025
| Maand | Waddinxveen | Alphen aan den Rijn | Verschil |
|---|---|---|---|
| Jan | 94.3 uren | 97.8 uren | -3.5 |
| Feb | 143.1 uren | 141.9 uren | +1.2 |
| Mrt | 299.8 uren | 301.2 uren | -1.4 |
| Apr | 322.1 uren | 323.6 uren | -1.5 |
| Mei | 376.7 uren | 382.6 uren | -5.9 |
| Jun | 396.3 uren | 402 uren | -5.7 |
| Jul | 381.2 uren | 393.4 uren | -12.2 |
| Aug | 344.7 uren | 346.1 uren | -1.4 |
| Sep | 272.5 uren | 274.5 uren | -2.0 |
| Okt | 147.7 uren | 154.5 uren | -6.8 |
| Nov | 121 uren | 123 uren | -2.0 |
| Dec | 93.9 uren | 96.7 uren | -2.8 |