Temperatuur — 2013
| Month | Court-Saint-Étienne | Mont-Saint-Guibert | Difference |
|---|---|---|---|
| Jan | 1.8 °C | – | – |
| Feb | 1 °C | – | – |
| Mar | 2.3 °C | – | – |
| Apr | 8.4 °C | – | – |
| May | 11.2 °C | – | – |
| Jun | 15.7 °C | – | – |
| Jul | 20.2 °C | – | – |
| Aug | 18.6 °C | – | – |
| Sep |
| 15 °C |
| – |
| – |
| Oct | 13.1 °C | – | – |
| Nov | 6.2 °C | – | – |
| Dec | 5.4 °C | – | – |