Zonneschijn — 2013
| Month | Kortessem | Borgloon | Difference |
|---|---|---|---|
| Jan | – | 97.4 uren | – |
| Feb | – | 122.3 uren | – |
| Mar | – | 188.2 uren | – |
| Apr | – | 246 uren | – |
| May | – | 262.3 uren | – |
| Jun | – | 303.1 uren | – |
| Jul | – | 374.6 uren | – |
| Aug | – | 335.7 uren | – |
| Sep |
| – |
| 249 uren |
| – |
| Oct | – | 192.1 uren | – |
| Nov | – | 83 uren | – |
| Dec | – | 127.6 uren | – |