Temperatuur — 2001
| Month | Court-Saint-Étienne | Mont-Saint-Guibert | Difference |
|---|---|---|---|
| Jan | 3.3 °C | – | – |
| Feb | 4.5 °C | – | – |
| Mar | 6.5 °C | – | – |
| Apr | 8 °C | – | – |
| May | 14.2 °C | – | – |
| Jun | 15.2 °C | – | – |
| Jul | 18.6 °C | – | – |
| Aug | 19.1 °C | – | – |
| Sep |
| 13 °C |
| – |
| – |
| Oct | 14.5 °C | – | – |
| Nov | 6.1 °C | – | – |
| Dec | 2.1 °C | – | – |