Neerslag — 1999
| Month | Court-Saint-Étienne | Chastre | Difference |
|---|---|---|---|
| Jan | 86.1 mm | – | – |
| Feb | 63.6 mm | – | – |
| Mar | 64.8 mm | – | – |
| Apr | 64 mm | – | – |
| May | 69.7 mm | – | – |
| Jun | 61.4 mm | – | – |
| Jul | 36.8 mm | – | – |
| Aug | 73.3 mm | – | – |
| Sep |
| 58.2 mm |
| – |
| – |
| Oct | 39.8 mm | – | – |
| Nov | 23.9 mm | – | – |
| Dec | 123.8 mm | – | – |