Zonneschijn — 1999
| Month | Rijkevorsel | Merksplas | Difference |
|---|---|---|---|
| Jan | 113.9 uren | 113.9 uren | +0.0 |
| Feb | 145 uren | 145.1 uren | -0.1 |
| Mar | 220.9 uren | 220.9 uren | +0.0 |
| Apr | 287.9 uren | 287.9 uren | +0.0 |
| May | 361.8 uren | 361.8 uren | +0.0 |
| Jun | 373.1 uren | 373.1 uren | +0.0 |
| Jul | 367.7 uren | 367.8 uren | -0.1 |
| Aug | 322.1 uren | 322.3 uren | -0.2 |
| Sep | 245.9 uren | 246 uren | -0.1 |
| Oct | 199 uren | 199.1 uren | -0.1 |
| Nov | 133.1 uren | 133.2 uren | -0.1 |
| Dec | 107.1 uren | 107.1 uren | +0.0 |