September 1 in Helena Lake, through the years

Typical high: 18.9°. Hottest: 27.6° (2024). Coldest night: 2.5° (1997).

YEARHIGHLOWRAIN
2025 19.3° 11.2° 0.1 mm
2024 27.6° 0 mm
2023 23.3° 13.6° 0 mm
2022 23.1° 10.3° 0 mm
2021 16.9° 7.7° 3.3 mm
2020 16.7° 10.1° 1.8 mm
2019 17.5° 4.7° 1.2 mm
2018 13.2° 5.9° 6.4 mm
2017 19.5° 10° 0 mm
2016 25.7° 13.4° 0.3 mm
2015 22.7° 9.9° 0 mm
2014 17.5° 5.8° 2.7 mm
2013 23.7° 9.5° 0 mm
2012 15.9° 11.2° 4.1 mm
2011 15.8° 4.3° 0 mm
2010 17.7° 3 mm
2009 27.6° 9.1° 0 mm
2008 14.1° 5.6° 0 mm
2007 15.6° 7.7° 15 mm
2006 21° 3.8° 0 mm
2005 19.7° 5.8° 0 mm
2004 16.8° 10.2° 0 mm
2003 19.3° 9.8° 0.7 mm
2002 14.2° 10.9° 15.8 mm
2001 24.4° 8.7° 1.2 mm
2000 14.7° 8.8° 2.2 mm
1999 12.3° 4.2° 1.3 mm
1998 19.8° 4.2° 0 mm
1997 16.9° 2.5° 0 mm
1996 15.3° 8.7° 0.9 mm
Source: ERA5 reanalysis (Copernicus C3S)

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