August 18 in Affton, through the years

Typical high: 30.4°. Hottest: 34.8° (2025). Coldest night: 12.8° (2012).

YEARHIGHLOWRAIN
2025 34.8° 24.1° 0.7 mm
2024 28.3° 20.7° 0 mm
2023 27.5° 14.9° 0 mm
2022 29.2° 16.4° 0 mm
2021 31° 21.4° 0 mm
2020 27.4° 19.6° 0 mm
2019 30.6° 24° 0.2 mm
2018 29.6° 20.6° 0.2 mm
2017 30.7° 18.9° 0 mm
2016 30.7° 21.7° 0 mm
2015 31.7° 21.8° 0.3 mm
2014 29.2° 20.8° 0 mm
2013 28.7° 17.1° 0 mm
2012 27° 12.8° 0 mm
2011 32.3° 22.5° 0 mm
2010 31.8° 22.2° 0 mm
2009 28.9° 21.4° 1.9 mm
2008 28° 16° 0 mm
2007 33.7° 22.7° 0.8 mm
2006 34.3° 24° 0 mm
2005 33.6° 22.9° 1.5 mm
2004 33.3° 20.9° 0 mm
2003 34.6° 23.2° 0 mm
2002 29.9° 21.8° 4.2 mm
2001 32.9° 19.6° 3.7 mm
2000 26.5° 19.1° 3.7 mm
1999 29.8° 19.1° 0.2 mm
1998 32.6° 21.9° 1.6 mm
1997 26.7° 21.1° 0.1 mm
1996 27° 21.8° 8.2 mm
Source: ERA5 reanalysis (Copernicus C3S)

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