Neerslag — 2020
| Month | Lasne | Genappe | Difference |
|---|---|---|---|
| Jan | 35.2 mm | 42.6 mm | -7.4 |
| Feb | 123.9 mm | 135.3 mm | -11.4 |
| Mar | 65.9 mm | 72.6 mm | -6.7 |
| Apr | 23.2 mm | 23.8 mm | -0.6 |
| May | 18.1 mm | 24 mm | -5.9 |
| Jun | 68.9 mm | 65.9 mm | +3.0 |
| Jul | 51.1 mm | 50.2 mm | +0.9 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |