August 17 in Ascona, through the years

Typical high: 20.4°. Hottest: 25.1° (2025). Coldest night: 5.4° (2014).

YEARHIGHLOWRAIN
2025 25.1° 15.6° 0.1 mm
2024 22.6° 14.4° 2 mm
2023 21.9° 13.4° 0.7 mm
2022 20.3° 13.4° 6.9 mm
2021 20.7° 11.9° 0 mm
2020 18.4° 12.8° 5.8 mm
2019 18.8° 9.4° 0 mm
2018 21.9° 12.8° 6.5 mm
2017 22.8° 13.2° 0 mm
2016 21.4° 11.4° 2.5 mm
2015 18.7° 12° 3.1 mm
2014 17.2° 5.4° 0 mm
2013 21.7° 10.7° 0.6 mm
2012 23.2° 13.7° 0.2 mm
2011 21.8° 12.3° 0.8 mm
2010 18.4° 8.7° 0 mm
2009 24.5° 11.9° 0 mm
2008 15.9° 8.7° 2.3 mm
2007 19.1° 12.7° 7.4 mm
2006 15.8° 11.8° 35.9 mm
2005 21.9° 7.6° 0 mm
2004 15.7° 12.4° 11.5 mm
2003 22.8° 13.1° 0 mm
2002 21.2° 11° 1.7 mm
2001 19.2° 12.1° 1.3 mm
2000 22.1° 12.7° 0 mm
1999 17.9° 8.7° 0 mm
1998 22.3° 11.6° 1.2 mm
1997 17.1° 11.5° 11.4 mm
1996 21.6° 8.8° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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