Temperatuur — 2026
| Month | Zwolle | Zwartewaterland | Difference |
|---|---|---|---|
| Jan | 1.2 °C | – | – |
| Feb | 4.4 °C | – | – |
| Mar | 8.1 °C | 6.4 °C | +1.7 |
| Apr | 9.6 °C | 8.1 °C | +1.5 |
| May | 14 °C | 14 °C | +0.0 |
| Jun | 18.6 °C | 18.6 °C | +0.0 |
| Jul | 19.1 °C | 19.1 °C | +0.0 |
| Aug |
| 18.9 °C |
| 18.9 °C |
| +0.0 |
| Sep | 16.4 °C | 16.4 °C | +0.0 |
| Oct | 12.3 °C | 12.1 °C | +0.2 |
| Nov | – | – | – |
| Dec | – | – | – |