September 11 in Altona, through the years

Typical high: 20.3°. Hottest: 29.4° (2023). Coldest night: 4.9° (1996).

YEARHIGHLOWRAIN
2025 21.1° 9.7° 3.9 mm
2024 15.8° 8.4° 8.9 mm
2023 29.4° 13.6° 0 mm
2022 19.1° 12.2° 0.5 mm
2021 22.3° 17° 4.7 mm
2020 20° 10.6° 0 mm
2019 21° 8.3° 2.7 mm
2018 25.3° 15.2° 1.9 mm
2017 17.1° 12.5° 1.3 mm
2016 26° 15.8° 0 mm
2015 15.8° 11.2° 5.7 mm
2014 17.8° 10.7° 0.2 mm
2013 13.5° 10.2° 7.1 mm
2012 22.3° 13.9° 10.3 mm
2011 25.2° 17.7° 6.8 mm
2010 21.2° 11.6° 0 mm
2009 20.1° 10° 0 mm
2008 22.2° 12.3° 0 mm
2007 16.4° 10.4° 1.3 mm
2006 24.9° 10.5° 0 mm
2005 17.9° 16.9° 6.6 mm
2004 22.1° 13.6° 9.7 mm
2003 14.4° 11° 35.9 mm
2002 23.1° 15.7° 0 mm
2001 12.8° 10.7° 11.6 mm
2000 19° 12.2° 0.1 mm
1999 28.9° 15.3° 0 mm
1998 19.8° 13.8° 0 mm
1997 18° 10.4° 0 mm
1996 15.8° 4.9° 0.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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