Temperatuur — 2025
| Maand | Houffalize | Lierneux | Verschil |
|---|---|---|---|
| Jan | 1.8 °C | 0.4 °C | +1.4 |
| Feb | 2.3 °C | 1.4 °C | +0.9 |
| Mrt | 6.4 °C | 5.4 °C | +1.0 |
| Apr | 10.5 °C | 9.2 °C | +1.3 |
| Mei | 13.4 °C | 11.7 °C | +1.7 |
| Jun | 18.5 °C | 17 °C | +1.5 |
| Jul | 17.7 °C | 16.3 °C | +1.4 |
| Aug |
| 18.4 °C |
| 16.6 °C |
| +1.8 |
| Sep | 13.6 °C | 12.6 °C | +1.0 |
| Okt | 10.2 °C | 9.1 °C | +1.1 |
| Nov | 6 °C | 5 °C | +1.0 |
| Dec | 4.7 °C | 3.8 °C | +0.9 |