August 20 in Hertsön, through the years

Typical high: 16.6°. Hottest: 20.8° (2015). Coldest night: 8.8° (2009).

YEARHIGHLOWRAIN
2025 14.7° 10.9° 0.3 mm
2024 16.9° 12.5° 0 mm
2023 17.9° 14.6° 0 mm
2022 20.7° 16.3° 0.4 mm
2021 16.4° 13.2° 1.8 mm
2020 18.4° 14.9° 0 mm
2019 17.2° 14.3° 0.1 mm
2018 16.8° 11.8° 0.1 mm
2017 16.2° 14.4° 2.1 mm
2016 16° 14.1° 0.1 mm
2015 20.8° 14.4° 0 mm
2014 15.1° 12.6° 6.3 mm
2013 16.3° 12.6° 0.1 mm
2012 14.6° 0 mm
2011 15.4° 14° 5.3 mm
2010 14.2° 9.6° 0.1 mm
2009 14.8° 8.8° 0.9 mm
2008 15.2° 13.4° 2.2 mm
2007 17.6° 14.5° 0 mm
2006 18.6° 13.9° 0 mm
2005 17.8° 13.4° 3.5 mm
2004 16° 12.5° 20.4 mm
2003 17.6° 15.8° 1 mm
2002 18.9° 16.9° 0 mm
2001 14.8° 9.9° 0 mm
2000 14° 11.8° 0 mm
1999 14.1° 9.5° 0.1 mm
1998 14° 11.3° 0 mm
1997 16.7° 12.4° 0 mm
1996 20.8° 17.6° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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