September 5 in Great Falls, through the years

Typical high: 20.9°. Hottest: 27.6° (2001). Coldest night: 2.4° (2010).

YEARHIGHLOWRAIN
2025 13° 7.4° 0 mm
2024 16.5° 9.9° 1.9 mm
2023 18.9° 12.8° 8.4 mm
2022 25.8° 11.9° 0 mm
2021 17.1° 11.3° 0.5 mm
2020 20.6° 6.4° 0.6 mm
2019 19.8° 13° 0.4 mm
2018 15.6° 7.1° 0 mm
2017 16.6° 8.5° 0 mm
2016 18.9° 13.1° 11.7 mm
2015 21.7° 16.9° 6 mm
2014 19.7° 8.8° 4.4 mm
2013 26.5° 10.5° 0 mm
2012 18.2° 11.4° 2.5 mm
2011 22.1° 7.9° 0 mm
2010 18.5° 2.4° 0 mm
2009 26.7° 15.7° 0.3 mm
2008 15.1° 8.5° 4 mm
2007 22.2° 14.9° 2.8 mm
2006 25.6° 12.4° 0 mm
2005 27.5° 17.1° 6.9 mm
2004 20.8° 10.2° 0 mm
2003 24.6° 13.4° 0 mm
2002 24.5° 14° 0 mm
2001 27.6° 12.6° 0 mm
2000 20.2° 12° 20 mm
1999 12.5° 9.9° 5.2 mm
1998 22.8° 14.1° 0 mm
1997 21.8° 16.1° 6.4 mm
1996 24.7° 13.4° 19.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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