Neerslag — 2025
| Maand | Waddinxveen | Alphen aan den Rijn | Verschil |
|---|---|---|---|
| Jan | 98.5 mm | 91.9 mm | +6.6 |
| Feb | 39 mm | 40.4 mm | -1.4 |
| Mrt | 6.5 mm | 7.8 mm | -1.3 |
| Apr | 36.4 mm | 39.8 mm | -3.4 |
| Mei | 51.6 mm | 60.3 mm | -8.7 |
| Jun | 62.6 mm | 63.7 mm | -1.1 |
| Jul | 92.1 mm | 93.1 mm | -1.0 |
| Aug | 39.4 mm | 45.8 mm | -6.4 |
| Sep | 60.5 mm | 56.4 mm | +4.1 |
| Okt | 142.1 mm | 142.5 mm | -0.4 |
| Nov | 78.3 mm | 80.6 mm | -2.3 |
| Dec | 24.3 mm | 23.3 mm | +1.0 |