Neerslag — 2023
| Maand | Waddinxveen | Alphen aan den Rijn | Verschil |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mrt | 0 mm | 0 mm | +0.0 |
| Apr | 85.9 mm | 91.9 mm | -6.0 |
| Mei | 77.4 mm | 77.9 mm | -0.5 |
| Jun | 16.5 mm | 15 mm | +1.5 |
| Jul | 120 mm | 130.3 mm | -10.3 |
| Aug |
| 90.3 mm |
| 89 mm |
| +1.3 |
| Sep | 81 mm | 84.2 mm | -3.2 |
| Okt | 172.9 mm | 165 mm | +7.9 |
| Nov | 149.9 mm | 166 mm | -16.1 |
| Dec | 122.6 mm | 124.8 mm | -2.2 |