Neerslag — 2023
| Month | Héron | Andenne | Difference |
|---|---|---|---|
| Jan | – | – | – |
| Feb | – | – | – |
| Mar | 109.1 mm | 124.7 mm | -15.6 |
| Apr | 72.1 mm | 76.6 mm | -4.5 |
| May | 53.9 mm | 45.1 mm | +8.8 |
| Jun | 55 mm | 55.8 mm | -0.8 |
| Jul | 110.9 mm | 117.2 mm | -6.3 |
| Aug |
| 92.6 mm |
| 107 mm |
| -14.4 |
| Sep | 73.1 mm | 75.8 mm | -2.7 |
| Oct | 100.3 mm | 103.6 mm | -3.3 |
| Nov | 113.8 mm | 125.4 mm | -11.6 |
| Dec | 83.5 mm | 88 mm | -4.5 |