September 1 in Heiskarinniemi, through the years

Typical high: 14.1°. Hottest: 18.5° (2025). Coldest night: -0.8° (2003).

YEARHIGHLOWRAIN
2025 18.5° 8.2° 0 mm
2024 17.1° 8.7° 0 mm
2023 15.3° 12.9° 25.1 mm
2022 9.5° 4.4° 0.4 mm
2021 11.4° 5.9° 0.6 mm
2020 15.5° 1.5° 0 mm
2019 17.5° 13.5° 0.1 mm
2018 17.2° 3.3° 0 mm
2017 10.2° 7.4° 10.1 mm
2016 17.7° 11.5° 7.9 mm
2015 12.3° 4.9° 0.6 mm
2014 15.2° 4.3° 0 mm
2013 17.2° 7.7° 0 mm
2012 11.4° 7.8° 4 mm
2011 10.7° 7.3° 0.4 mm
2010 9.5° 3.9° 4.6 mm
2009 17.4° 10.7° 0.2 mm
2008 7.8° 1.8° 0.2 mm
2007 8.5° 0.2° 0.3 mm
2006 13.4° 10.6° 0.4 mm
2005 17.1° 4.5° 0 mm
2004 15.4° 9.6° 1.3 mm
2003 5.9° -0.8° 0 mm
2002 16° 7.1° 1.2 mm
2001 15.4° 8.7° 0 mm
2000 13.7° 8.4° 5.5 mm
1999 17.3° 10.4° 0.8 mm
1998 15.7° -0.5° 0 mm
1997 18° 9.3° 0 mm
1996 16° 9.1° 6.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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