September 11 in Niemi, through the years

Typical high: 16.3°. Hottest: 23.7° (2025). Coldest night: -0.2° (2005).

YEARHIGHLOWRAIN
2025 23.7° 14.9° 0 mm
2024 18.4° 13° 1.3 mm
2023 19.3° 11.8° 0 mm
2022 15.1° 5.7° 0.2 mm
2021 14.2° 10.8° 3 mm
2020 12.9° 7.2° 0.4 mm
2019 17.2° 13.1° 1 mm
2018 16.3° 11.2° 9.6 mm
2017 16.9° 10.5° 0.3 mm
2016 20.2° 11.3° 1 mm
2015 20.3° 3.7° 0 mm
2014 17.7° 8.5° 0 mm
2013 17.9° 10.8° 1.9 mm
2012 17.5° 13.1° 0.5 mm
2011 18.1° 7.8° 0 mm
2010 14.2° 8.2° 0 mm
2009 15° 6.1° 0.8 mm
2008 10.7° 2.4° 0 mm
2007 14.9° 4.8° 0 mm
2006 18.7° 9.2° 0 mm
2005 13.5° -0.2° 0 mm
2004 14.4° 4.3° 0 mm
2003 15.3° 4.3° 0 mm
2002 18° 0 mm
2001 13.7° 6.1° 2 mm
2000 13.2° 7.6° 0.6 mm
1999 18.1° 5.1° 0 mm
1998 16.2° 13.5° 1 mm
1997 15.7° 7.7° 0.1 mm
1996 10.6° 0.9° 1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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