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| Climate | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily highs (°C) | 5 | 6 | 10 | 13 | 18 | 20 | 23 | 23 | 19 | 14 | 9 | 6 |
| Nightly lows (°C) | 0 | 0 | 2 | 4 | 8 | 11 | 13 | 13 | 10 | 7 | 3 | 1 |
| Precipitation (mm) | 60 | 51 | 60 | 46 | 64 | 74 | 67 | 58 | 60 | 63 | 66 | 70 |
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Climate in Heerlen | ||||||||||||