Neerslag — 2026
| Month | Hardinxveld-Giessendam | Altena | Difference |
|---|---|---|---|
| Jan | 90.8 mm | – | – |
| Feb | 57.8 mm | – | – |
| Mar | 62.9 mm | 8.8 mm | +54.1 |
| Apr | 2.8 mm | 1 mm | +1.8 |
| May | 67.6 mm | 72.5 mm | -4.9 |
| Jun | 69.8 mm | 64.6 mm | +5.2 |
| Jul | 14.9 mm | 16.5 mm | -1.6 |
| Aug |
| 58 mm |
| 62.7 mm |
| -4.7 |
| Sep | 36.5 mm | 32.4 mm | +4.1 |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |