Temperatuur — 2009
| Month | Rijkevorsel | Merksplas | Difference |
|---|---|---|---|
| Jan | 0.4 °C | 0.3 °C | +0.1 |
| Feb | 3.1 °C | 3.1 °C | +0.0 |
| Mar | 6.1 °C | 6.1 °C | +0.0 |
| Apr | 11.9 °C | 11.9 °C | +0.0 |
| May | 14.1 °C | 14 °C | +0.1 |
| Jun | 15.8 °C | 15.7 °C | +0.1 |
| Jul | 18.4 °C | 18.3 °C | +0.1 |
| Aug |
| 19.3 °C |
| 19.2 °C |
| +0.1 |
| Sep | 15.9 °C | 15.8 °C | +0.1 |
| Oct | 11.4 °C | 11.3 °C | +0.1 |
| Nov | 9.5 °C | 9.4 °C | +0.1 |
| Dec | 2.5 °C | 2.4 °C | +0.1 |