August 17 in Guern, through the years

Typical high: 22.2°. Hottest: 29.9° (2025). Coldest night: 8.9° (2015).

YEARHIGHLOWRAIN
2025 29.9° 18° 0 mm
2024 21.3° 13.8° 0.4 mm
2023 26.2° 14.2° 0.4 mm
2022 20.4° 14° 2.4 mm
2021 18.5° 12.5° 0 mm
2020 21.4° 13.6° 0.6 mm
2019 20° 14.7° 1.6 mm
2018 20.9° 10.3° 0 mm
2017 20.3° 17.4° 6.3 mm
2016 24.6° 15.1° 1 mm
2015 20.8° 8.9° 0 mm
2014 18.5° 10.8° 0.4 mm
2013 21.8° 14.1° 1.4 mm
2012 28.9° 16.9° 0.7 mm
2011 23.9° 14.2° 0 mm
2010 19.9° 13.2° 0.2 mm
2009 21.4° 13.1° 0 mm
2008 19° 12.2° 0 mm
2007 18.7° 11.1° 0 mm
2006 19.4° 13.5° 8.1 mm
2005 26.4° 13.1° 0 mm
2004 21.3° 16.2° 15.8 mm
2003 24.4° 16.4° 0 mm
2002 22.2° 13.8° 0 mm
2001 20.4° 10.6° 2.3 mm
2000 20.5° 13.7° 0 mm
1999 17.9° 13.4° 6.1 mm
1998 21.8° 9.2° 0 mm
1997 25.9° 16.9° 0.5 mm
1996 28° 13.3° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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