Neerslag — 2026
| Maand | Waddinxveen | Alphen aan den Rijn | Verschil |
|---|---|---|---|
| Jan | 85.8 mm | 89 mm | -3.2 |
| Feb | 55.8 mm | 64.1 mm | -8.3 |
| Mrt | 56.2 mm | 64.1 mm | -7.9 |
| Apr | 5.6 mm | 4.2 mm | +1.4 |
| Mei | 64.4 mm | 64.4 mm | +0.0 |
| Jun | 84.7 mm | 84.6 mm | +0.1 |
| Jul | 6.8 mm | 5.7 mm | +1.1 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |