Temperatuur — 2004
| Month | Court-Saint-Étienne | Ottignies-Louvain-la-Neuve | Difference |
|---|---|---|---|
| Jan | 3.1 °C | – | – |
| Feb | 4.4 °C | – | – |
| Mar | 5.6 °C | – | – |
| Apr | 10 °C | – | – |
| May | 12.1 °C | – | – |
| Jun | 16 °C | – | – |
| Jul | 17.3 °C | – | – |
| Aug | 19 °C | – | – |
| Sep |
| 16 °C |
| – |
| – |
| Oct | 12.2 °C | – | – |
| Nov | 6.5 °C | – | – |
| Dec | 2.7 °C | – | – |