Neerslag — 2026
| Mois | Simpelveld | Heerlen | Différence |
|---|---|---|---|
| Jan | – | 66 mm | – |
| Fév | – | 95.3 mm | – |
| Mar | 14.4 mm | 62.5 mm | -48.1 |
| Avr | 8.4 mm | 5.5 mm | +2.9 |
| Mai | 112 mm | 82 mm | +30.0 |
| Juin | 76.4 mm | 66.2 mm | +10.2 |
| Juil | 11.3 mm | 8.8 mm | +2.5 |
| Aoû |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Déc | – | – | – |