September 10 in Alton, through the years

Typical high: 21.2°. Hottest: 31.9° (2002). Coldest night: 6.9° (2003).

YEARHIGHLOWRAIN
2025 20.9° 7.6° 0 mm
2024 21.3° 11.2° 0 mm
2023 20.8° 17.3° 14.1 mm
2022 27.7° 15.9° 0 mm
2021 20.7° 13.4° 3.1 mm
2020 27.9° 16.9° 0.4 mm
2019 19.1° 9.6° 0 mm
2018 16.7° 9.6° 7.8 mm
2017 20.3° 10.5° 0 mm
2016 25.4° 16.8° 1.5 mm
2015 23.7° 17.2° 8.5 mm
2014 20.2° 11.1° 0 mm
2013 22° 12.1° 4.6 mm
2012 17.4° 10.2° 0 mm
2011 20.8° 12.9° 0 mm
2010 18° 12.6° 0 mm
2009 18.4° 8.9° 0 mm
2008 17.7° 9.9° 0 mm
2007 15.7° 13° 2.8 mm
2006 16.9° 10.6° 0 mm
2005 18.9° 11.2° 0 mm
2004 21.6° 13.1° 1.2 mm
2003 21.6° 6.9° 0 mm
2002 31.9° 17.8° 0 mm
2001 26.8° 17.2° 0.7 mm
2000 24.1° 12.9° 0 mm
1999 21.2° 18.9° 74.2 mm
1998 18.5° 11.2° 0 mm
1997 16.3° 13.6° 0.7 mm
1996 23.9° 17.6° 1.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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