August 18 in Thonon, through the years

Typical high: 23.5°. Hottest: 27.2° (2024). Coldest night: 15.5° (2018).

YEARHIGHLOWRAIN
2025 22.5° 18.3° 1.8 mm
2024 27.2° 18.3° 0 mm
2023 24.1° 15.9° 0 mm
2022 21.8° 15.7° 12.5 mm
2021 26° 18.4° 0.4 mm
2020 23.7° 17.6° 0 mm
2019 24.3° 17.6° 0 mm
2018 25.5° 15.5° 0 mm
2017 24.5° 15.6° 0 mm
2016 23.2° 15.7° 0.5 mm
2015 22.9° 17.9° 0 mm
2014 24.5° 20.6° 9.8 mm
2013 23.3° 17.8° 0.1 mm
2012 24.5° 18.4° 0.3 mm
2011 21.7° 16° 0 mm
2010 24.4° 18.6° 0 mm
2009 22.2° 16.7° 0 mm
2008 23.2° 16.9° 0 mm
2007 26.7° 19.9° 0 mm
2006 21.9° 17.6° 0 mm
2005 22.4° 16.5° 0 mm
2004 22.1° 16.2° 0.4 mm
2003 23.4° 17.9° 1.9 mm
2002 21.7° 17° 0.4 mm
2001 22.3° 16° 0 mm
2000 22.6° 17° 0 mm
1999 20.6° 17.7° 0 mm
1998 26.7° 21.9° 2.2 mm
1997 23.2° 16.8° 0 mm
1996 23.1° 18.4° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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