Gevoelstemperatuur — 2026
| Maand | Heiloo | Alkmaar | Verschil |
|---|---|---|---|
| Jan | – | -1.7 °C | – |
| Feb | – | 0.7 °C | – |
| Mrt | 3.2 °C | 4.8 °C | -1.6 |
| Apr | 5.4 °C | 6 °C | -0.6 |
| Mei | 13 °C | 12.5 °C | +0.5 |
| Jun | 17.9 °C | 17.4 °C | +0.5 |
| Jul | 18.9 °C | 18.7 °C | +0.2 |
| Aug |
| 19 °C |
| 19 °C |
| +0.0 |
| Sep | 16.4 °C | 16.8 °C | -0.4 |
| Okt | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |