Bewolking — 2012
| Month | Court-Saint-Étienne | Mont-Saint-Guibert | Difference |
|---|---|---|---|
| Jan | 71.7 % | – | – |
| Feb | 65.9 % | – | – |
| Mar | 55.4 % | – | – |
| Apr | 70.6 % | – | – |
| May | 61.2 % | – | – |
| Jun | 70.9 % | – | – |
| Jul | 59.8 % | – | – |
| Aug | 57 % | – | – |
| Sep |
| 63.8 % |
| – |
| – |
| Oct | 69.8 % | – | – |
| Nov | 73.8 % | – | – |
| Dec | 81.2 % | – | – |