Typical Aachen September Weather 1991–2020 |
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---|---|---|
Average daily high | 19.4 °C | |
Average daily low | 11.1 °C | |
Average monthly precipitation | 6.3 cm | |
Daily chance of precipitation | 45.6% |
Aachen September Weather Records 1891–2024 |
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Highest temperature | 34.3 °C | September 8, 1911 |
Lowest temperature | 0.0 °C | September 11, 1944 |
Highest daily low | 20.7 °C | September 8, 1934 |
Lowest daily high | 7.9 °C | September 28, 1943 |
Hottest average high temperature | 23.7 °C | 2023 |
Coldest average high temperature | 14.1 °C | 1912 |
Most daily precipitation | 6.7 cm | September 26, 1956 |
Most monthly precipitation | 19.7 cm | 1984 |
Day | Average (°C) | Record (°C) | ||
---|---|---|---|---|
High | Low | High | Low | |
September 1 | 21.4 | 12.5 | 30.9 | 5.7 |
September 2 | 21.2 | 12.4 | 33.6 | 6.5 |
September 3 | 21.0 | 12.3 | 31.6 | 6.3 |
September 4 | 20.9 | 12.1 | 31.4 | 5.6 |
September 5 | 20.7 | 12.0 | 32.6 | 6.2 |
September 6 | 20.6 | 11.9 | 31.5 | 6.0 |
September 7 | 20.5 | 11.8 | 31.1 | 4.8 |
September 8 | 20.3 | 11.7 | 34.3 | 5.0 |
September 9 | 20.2 | 11.6 | 30.5 | 5.1 |
September 10 | 20.0 | 11.4 | 30.7 | 3.9 |
September 11 | 19.9 | 11.3 | 30.5 | 0.0 |
September 12 | 19.8 | 11.2 | 31.4 | 1.0 |
September 13 | 19.7 | 11.2 | 32.8 | 4.6 |
September 14 | 19.6 | 11.1 | 31.2 | 4.9 |
September 15 | 19.5 | 11.1 | 32.9 | 4.4 |
September 16 | 19.4 | 11.0 | 30.9 | 3.0 |
September 17 | 19.3 | 11.0 | 28.6 | 4.5 |
September 18 | 19.2 | 10.9 | 30.1 | 2.7 |
September 19 | 19.0 | 10.8 | 31.7 | 2.9 |
September 20 | 18.8 | 10.7 | 32.2 | 2.4 |
September 21 | 18.7 | 10.6 | 29.5 | 0.4 |
September 22 | 18.5 | 10.5 | 27.5 | 2.0 |
September 23 | 18.3 | 10.4 | 28.0 | 1.3 |
September 24 | 18.1 | 10.3 | 28.0 | 1.5 |
September 25 | 18.0 | 10.2 | 29.0 | 1.1 |
September 26 | 17.8 | 10.0 | 29.0 | 0.8 |
September 27 | 17.7 | 9.9 | 27.6 | 2.0 |
September 28 | 17.5 | 9.8 | 29.0 | 0.3 |
September 29 | 17.4 | 9.7 | 27.6 | 0.5 |
September 30 | 17.3 | 9.6 | 26.5 | 1.3 |