Bewolking — 2020
| Month | Limbourg | Welkenraedt | Difference |
|---|---|---|---|
| Jan | 75.4 % | 70 % | +5.4 |
| Feb | 82 % | 78.6 % | +3.4 |
| Mar | 58.3 % | 56 % | +2.3 |
| Apr | 32.8 % | 31.8 % | +1.0 |
| May | 50.5 % | 49.6 % | +0.9 |
| Jun | 64.3 % | 62.8 % | +1.5 |
| Jul | 63.3 % | 62 % | +1.3 |
| Aug |
| – |
| – |
| – |
| Sep | – | – | – |
| Oct | – | – | – |
| Nov | – | – | – |
| Dec | – | – | – |