September 7 in Alton, through the years

Typical high: 25.3°. Hottest: 30.9° (2009). Coldest night: -1.5° (2023).

YEARHIGHLOWRAIN
2025 26.7° 11.2° 0 mm
2024 29.4° 5.4° 0 mm
2023 26.2° -1.5° 0 mm
2022 27.7° 5.1° 0 mm
2021 20.8° 4.9° 0 mm
2020 26.5° 10.2° 0 mm
2019 23.4° 9.8° 0 mm
2018 13.8° 4.3° 1.2 mm
2017 28.9° 0 mm
2016 27.2° 11.2° 0 mm
2015 25.8° 7.6° 1.3 mm
2014 29.2° 8.6° 0 mm
2013 28.7° 4.1° 0 mm
2012 21.1° 10.5° 0.2 mm
2011 29.8° 0 mm
2010 26.5° 9.9° 0 mm
2009 30.9° 15° 0 mm
2008 30.7° 8.3° 0 mm
2007 30.6° 11.4° 0 mm
2006 24.5° 9.2° 0 mm
2005 23.7° 9.7° 3.3 mm
2004 16.5° 1.5° 0 mm
2003 25.8° 7.5° 0 mm
2002 20.6° 9.4° 0.1 mm
2001 24.6° 0 mm
2000 22.3° 6.5° 0 mm
1999 29° 10.5° 0 mm
1998 22.6° 5.7° 0 mm
1997 23.5° 10° 0 mm
1996 21° 1.9° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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