September 2 in Alton, through the years

Typical high: 24.1°. Hottest: 30.4° (2025). Coldest night: -1.6° (2013).

YEARHIGHLOWRAIN
2025 30.4° 7.3° 0 mm
2024 28° 7.4° 0 mm
2023 22.9° 5.4° 0 mm
2022 26.2° 9.9° 0 mm
2021 28.5° 8.1° 0 mm
2020 16.6° 12° 1.8 mm
2019 23.8° 1.3° 0 mm
2018 25.4° 7.3° 0.3 mm
2017 21.8° 3.1° 0 mm
2016 27° 8.7° 0 mm
2015 17.9° 3.4° 0 mm
2014 23.2° 2.4° 0 mm
2013 22.1° -1.6° 0 mm
2012 20.7° 0.3° 0 mm
2011 19.7° 9.5° 0 mm
2010 25.7° 9.1° 0 mm
2009 27.4° 12° 0 mm
2008 24.1° 1.7° 0 mm
2007 28.9° 8.5° 0 mm
2006 21.9° 5.9° 0 mm
2005 23.2° 3.8° 0 mm
2004 19.4° 8.7° 0 mm
2003 27.7° 11.6° 0 mm
2002 23° 3.5° 0 mm
2001 19.5° 5.2° 0 mm
2000 29.1° 5.1° 0 mm
1999 24.3° 7.6° 0 mm
1998 24.6° 7.9° 0 mm
1997 23.2° 4.6° 0 mm
1996 26.3° 5.3° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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