September 9 in Kostamo, through the years

Typical high: 15.5°. Hottest: 23.1° (2024). Coldest night: 2.2° (2004).

YEARHIGHLOWRAIN
2025 21.7° 12.6° 0 mm
2024 23.1° 11.7° 0 mm
2023 19.2° 9.8° 0 mm
2022 12.1° 2.9° 0 mm
2021 14.3° 8.4° 0.5 mm
2020 14.6° 10.3° 2.3 mm
2019 15.9° 11.5° 4.9 mm
2018 17.2° 0 mm
2017 13.6° 8.3° 1.1 mm
2016 13.6° 8.1° 0.5 mm
2015 13.7° 8.7° 0 mm
2014 20.1° 9.2° 0 mm
2013 16.4° 8.3° 0 mm
2012 11.6° 5.8° 0.9 mm
2011 15.9° 11.7° 0.8 mm
2010 17.6° 6.7° 0 mm
2009 20.7° 14.6° 0.3 mm
2008 11.9° 0 mm
2007 9.9° 3.6° 0 mm
2006 11.8° 9.9° 8.2 mm
2005 16.5° 12° 1.2 mm
2004 9.6° 2.2° 0 mm
2003 18.9° 6.9° 0 mm
2002 18.4° 12.8° 0.1 mm
2001 15.1° 13° 9.2 mm
2000 14.1° 9.2° 8.3 mm
1999 16.6° 9.3° 0 mm
1998 19.2° 10.5° 0 mm
1997 13° 11.1° 3.7 mm
1996 6.7° 1.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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