August 20 in Lonnikko, through the years

Typical high: 18.9°. Hottest: 25.8° (2022). Coldest night: 4.7° (2009).

YEARHIGHLOWRAIN
2025 11.6° 6.5° 2.4 mm
2024 19.6° 10° 0 mm
2023 20.7° 9.5° 0 mm
2022 25.8° 18.7° 0 mm
2021 15.9° 12.9° 1.4 mm
2020 24.1° 14.2° 0.1 mm
2019 20° 12.3° 1.6 mm
2018 17.8° 10.2° 1.7 mm
2017 18.6° 14° 0 mm
2016 19.2° 13° 5.1 mm
2015 22.4° 10.5° 0 mm
2014 16.2° 12.2° 1.7 mm
2013 20.9° 10.9° 0 mm
2012 13.7° 6.1° 0 mm
2011 15.3° 12° 0 mm
2010 18.5° 7.4° 0 mm
2009 15.4° 4.7° 0 mm
2008 17.6° 13.6° 2 mm
2007 19.5° 11.6° 0 mm
2006 20.8° 12.8° 0 mm
2005 21.9° 13.5° 0 mm
2004 18.4° 11.8° 9.1 mm
2003 17.3° 13.6° 2.5 mm
2002 24.1° 14.9° 0 mm
2001 18.6° 8.1° 0 mm
2000 16.7° 9.9° 0 mm
1999 16.3° 9.5° 0.1 mm
1998 15.1° 9.3° 0.2 mm
1997 20.9° 14.4° 1.4 mm
1996 25.3° 14.2° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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