September 9 in Helena, through the years

Typical high: 30.7°. Hottest: 34.4° (2023). Coldest night: 3.4° (2018).

YEARHIGHLOWRAIN
2025 32.4° 13.9° 0 mm
2024 32.8° 13.7° 0 mm
2023 34.4° 14.3° 0 mm
2022 32.2° 13.8° 0 mm
2021 31.1° 12° 0 mm
2020 29.7° 13.5° 0 mm
2019 26.4° 5.1° 0 mm
2018 21° 3.4° 0 mm
2017 33.7° 15.6° 0 mm
2016 33° 15.5° 0 mm
2015 32.4° 9.6° 0 mm
2014 31.5° 10.7° 0 mm
2013 34.1° 14° 0 mm
2012 30.3° 7.4° 0 mm
2011 31° 11° 0 mm
2010 31° 14.9° 0 mm
2009 27.6° 11.7° 0 mm
2008 33.5° 16.9° 0 mm
2007 32.6° 14.6° 0 mm
2006 26.6° 10.6° 0 mm
2005 32.5° 15.8° 0 mm
2004 29.4° 7.3° 0 mm
2003 31.6° 12.3° 0 mm
2002 30.5° 15.2° 0 mm
2001 32.7° 14.2° 0 mm
2000 32° 15.4° 0 mm
1999 29.7° 14.6° 0 mm
1998 31.7° 14.4° 0 mm
1997 21.8° 13.4° 16.4 mm
1996 32.7° 12.8° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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