Neerslag — 2025
| Maand | Kaag en Braassem | Alphen aan den Rijn | Verschil |
|---|---|---|---|
| Jan | – | 91.9 mm | – |
| Feb | – | 40.4 mm | – |
| Mrt | – | 7.8 mm | – |
| Apr | – | 39.8 mm | – |
| Mei | – | 60.3 mm | – |
| Jun | – | 63.7 mm | – |
| Jul | – | 93.1 mm | – |
| Aug | – | 45.8 mm | – |
| Sep |
| – |
| 56.4 mm |
| – |
| Okt | – | 142.5 mm | – |
| Nov | – | 80.6 mm | – |
| Dec | – | 23.3 mm | – |