Bewolking — 2020
| Month | Court-Saint-Étienne | Chastre | Difference |
|---|---|---|---|
| Jan | 72.3 % | 72.1 % | +0.2 |
| Feb | 75.8 % | 78 % | -2.2 |
| Mar | 54.8 % | 55.9 % | -1.1 |
| Apr | 34.5 % | 33.8 % | +0.7 |
| May | 49.1 % | 50.1 % | -1.0 |
| Jun | 63.2 % | 63.1 % | +0.1 |
| Jul | 61.3 % | 62.2 % | -0.9 |
| Aug |
| 57.6 % |
| – |
| – |
| Sep | 56.4 % | – | – |
| Oct | 79.2 % | – | – |
| Nov | 64.8 % | – | – |
| Dec | 80.4 % | – | – |