Neerslag — 2020
| Month | Westerlo | Olen | Difference |
|---|---|---|---|
| Jan | 37.3 mm | 38.4 mm | -1.1 |
| Feb | 133.1 mm | 138.4 mm | -5.3 |
| Mar | 67 mm | 69.9 mm | -2.9 |
| Apr | 24.7 mm | 20.1 mm | +4.6 |
| May | 19 mm | 16.5 mm | +2.5 |
| Jun | 93.3 mm | 86 mm | +7.3 |
| Jul | 56.1 mm | 64.8 mm | -8.7 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |