Neerslag — 2020
| Month | Wezembeek-Oppem | Zaventem | Difference |
|---|---|---|---|
| Jan | 35.2 mm | 34.4 mm | +0.8 |
| Feb | 123.9 mm | 122.8 mm | +1.1 |
| Mar | 65.9 mm | 68.7 mm | -2.8 |
| Apr | 23.2 mm | 22.8 mm | +0.4 |
| May | 18.1 mm | 16.1 mm | +2.0 |
| Jun | 68.9 mm | 71.1 mm | -2.2 |
| Jul | 51.1 mm | 59.7 mm | -8.6 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |