Neerslag — 2020
| Maand | Rijswijk | Midden-Delfland | Verschil |
|---|---|---|---|
| Jan | 56 mm | 56 mm | +0.0 |
| Feb | 113.8 mm | 113.8 mm | +0.0 |
| Mrt | 43.8 mm | 43.8 mm | +0.0 |
| Apr | 26.4 mm | 26.4 mm | +0.0 |
| Mei | 10.6 mm | 10.6 mm | +0.0 |
| Jun | 64.3 mm | 64.3 mm | +0.0 |
| Jul | 59.6 mm | 59.6 mm | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |