August 26 in Helena, through the years

Typical high: 17.9°. Hottest: 23.6° (2025). Coldest night: -3.9° (2017).

YEARHIGHLOWRAIN
2025 23.6° 2.5° 0 mm
2024 21.4° 4.6° 0 mm
2023 9.7° -1.4° 0.3 mm
2022 19.6° 3.6° 0 mm
2021 19.2° 9.3° 3.8 mm
2020 12.7° 4.6° 0.2 mm
2019 22.6° 6.7° 0 mm
2018 12.1° 0.4° 0 mm
2017 16.4° -3.9° 0 mm
2016 23° 5.8° 0 mm
2015 19.6° 11.4° 4.5 mm
2014 20.7° 5.1° 0 mm
2013 23.4° 12.4° 0 mm
2012 17.8° 2.2° 0 mm
2011 22.8° 6.2° 0 mm
2010 17.4° 2.4° 0.3 mm
2009 21° 7.7° 3.9 mm
2008 14° 1.2° 0 mm
2007 18.7° 5.7° 0.2 mm
2006 14.8° 3.4° 0 mm
2005 19.6° 4.8° 0 mm
2004 14.4° 4.6° 0.2 mm
2003 7.3° -1.1° 1.4 mm
2002 18.8° 0 mm
2001 18.2° 1.8° 0 mm
2000 22.2° 0 mm
1999 15.6° 0.7° 0 mm
1998 12.9° -0.5° 0 mm
1997 23.3° 8.8° 0 mm
1996 14.6° 4.4° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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