Temperatuur — 1999
| Month | Rijkevorsel | Merksplas | Difference |
|---|---|---|---|
| Jan | 5.2 °C | 5.2 °C | +0.0 |
| Feb | 2.9 °C | 2.9 °C | +0.0 |
| Mar | 7.3 °C | 7.3 °C | +0.0 |
| Apr | 9.8 °C | 9.8 °C | +0.0 |
| May | 14.4 °C | 14.3 °C | +0.1 |
| Jun | 15.5 °C | 15.4 °C | +0.1 |
| Jul | 19.2 °C | 19.1 °C | +0.1 |
| Aug |
| 17.9 °C |
| 17.8 °C |
| +0.1 |
| Sep | 17.8 °C | 17.8 °C | +0.0 |
| Oct | 10.9 °C | 10.8 °C | +0.1 |
| Nov | 6.4 °C | 6.4 °C | +0.0 |
| Dec | 4.5 °C | 4.4 °C | +0.1 |