Luchtvochtigheid — 1998
| Month | Court-Saint-Étienne | Mont-Saint-Guibert | Difference |
|---|---|---|---|
| Jan | 82.8 % | – | – |
| Feb | 82 % | – | – |
| Mar | 78.8 % | – | – |
| Apr | 81.6 % | – | – |
| May | 74.1 % | – | – |
| Jun | 78.7 % | – | – |
| Jul | 77.7 % | – | – |
| Aug | 75 % | – | – |
| Sep |
| 82.1 % |
| – |
| – |
| Oct | 83.8 % | – | – |
| Nov | 86.5 % | – | – |
| Dec | 87.8 % | – | – |