Zonneschijn — 1998
| Month | Châtelet | Aiseau-Presles | Difference |
|---|---|---|---|
| Jan | 108.8 uren | – | – |
| Feb | 176.2 uren | – | – |
| Mar | 174 uren | – | – |
| Apr | 210.9 uren | – | – |
| May | 309.8 uren | – | – |
| Jun | 307.7 uren | – | – |
| Jul | 288.5 uren | – | – |
| Aug | 334.7 uren | – | – |
| Sep |
| 203.4 uren |
| – |
| – |
| Oct | 116.4 uren | – | – |
| Nov | 140.1 uren | – | – |
| Dec | 92.2 uren | – | – |