Bewolking — 2024
| Month | Spa | Theux | Difference |
|---|---|---|---|
| Jan | 81.6 % | 77.7 % | +3.9 |
| Feb | 93.1 % | 91.5 % | +1.6 |
| Mar | 83.5 % | 82.6 % | +0.9 |
| Apr | 85.5 % | 83.2 % | +2.3 |
| May | 75.4 % | 73.3 % | +2.1 |
| Jun | 67.3 % | 65.1 % | +2.2 |
| Jul | 66.9 % | 66.9 % | +0.0 |
| Aug |
| 59.4 % |
| 59.5 % |
| -0.1 |
| Sep | 64 % | 61.6 % | +2.4 |
| Oct | 72.2 % | 71.9 % | +0.3 |
| Nov | 76.3 % | 74.9 % | +1.4 |
| Dec | 83.8 % | 83.1 % | +0.7 |