Temperatuur — 2025
| Monat | Haarlemmermeer | Haarlem | Unterschied |
|---|---|---|---|
| Jan | 4.2 °C | 4.3 °C | -0.1 |
| Feb | 3.9 °C | 3.9 °C | +0.0 |
| Mär | 7 °C | 7 °C | +0.0 |
| Apr | 11 °C | 10.7 °C | +0.3 |
| Mai | 13.7 °C | 13.4 °C | +0.3 |
| Jun | 17.6 °C | 17.3 °C | +0.3 |
| Jul | 18.6 °C | 18.5 °C | +0.1 |
| Aug |
| 18.3 °C |
| 18.1 °C |
| +0.2 |
| Sep | 15.4 °C | 15.4 °C | +0.0 |
| Okt | 12.5 °C | 12.6 °C | -0.1 |
| Nov | 8.3 °C | 8.5 °C | -0.2 |
| Dez | 6.4 °C | 6.4 °C | +0.0 |