Zonneschijn — 2003
| Month | Chastre | Court-Saint-Étienne | Difference |
|---|---|---|---|
| Jan | – | 132.5 uren | – |
| Feb | – | 214.9 uren | – |
| Mar | – | 271.9 uren | – |
| Apr | – | 309 uren | – |
| May | – | 325.6 uren | – |
| Jun | – | 371.9 uren | – |
| Jul | – | 369 uren | – |
| Aug | – | 372.6 uren | – |
| Sep |
| – |
| 305.4 uren |
| – |
| Oct | – | 200.7 uren | – |
| Nov | – | 120.8 uren | – |
| Dec | – | 100.4 uren | – |