Bewolking — 2012
| Month | Mont-Saint-Guibert | Court-Saint-Étienne | 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 % | – |