Neerslag — 2020
| Month | Beverwijk | Heemskerk | Difference |
|---|---|---|---|
| Jan | 65 mm | 65 mm | +0.0 |
| Feb | 131.9 mm | 131.9 mm | +0.0 |
| Mar | 48.9 mm | 48.9 mm | +0.0 |
| Apr | 24.6 mm | 24.6 mm | +0.0 |
| May | 18.9 mm | 18.9 mm | +0.0 |
| Jun | 68.7 mm | 68.7 mm | +0.0 |
| Jul | 76.8 mm | 76.8 mm | +0.0 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |