Neerslag — 2003
| Month | Court-Saint-Étienne | Mont-Saint-Guibert | Difference |
|---|---|---|---|
| Jan | 61.2 mm | – | – |
| Feb | 21.3 mm | – | – |
| Mar | 40.2 mm | – | – |
| Apr | 46.5 mm | – | – |
| May | 74.2 mm | – | – |
| Jun | 63.6 mm | – | – |
| Jul | 83.2 mm | – | – |
| Aug | 35.4 mm | – | – |
| Sep |
| 22.4 mm |
| – |
| – |
| Oct | 50.9 mm | – | – |
| Nov | 40.3 mm | – | – |
| Dec | 73.5 mm | – | – |