September 9 in Montana, through the years

Typical high: 22.7°. Hottest: 33.8° (2013). Coldest night: 5.7° (2020).

YEARHIGHLOWRAIN
2025 20.7° 15.4° 6.1 mm
2024 26.8° 13.2° 0 mm
2023 25.7° 11.9° 1.2 mm
2022 25.6° 16.4° 1.7 mm
2021 22.9° 12.1° 0 mm
2020 9.2° 5.7° 13.4 mm
2019 19.4° 13.5° 13 mm
2018 21.7° 9.8° 0 mm
2017 23.5° 9.1° 0 mm
2016 22.1° 15.7° 4.9 mm
2015 23.6° 11.7° 0.9 mm
2014 23.5° 15.7° 20.8 mm
2013 33.8° 19.4° 0 mm
2012 21.8° 10.8° 0 mm
2011 27.9° 14.1° 0 mm
2010 17.9° 10.1° 0.5 mm
2009 25.8° 13.5° 0 mm
2008 18.9° 6.5° 0 mm
2007 19.4° 13° 0.2 mm
2006 12° 9.6° 0.2 mm
2005 27.3° 15° 0 mm
2004 22.8° 10.7° 0 mm
2003 29.7° 16.2° 0 mm
2002 30.6° 21° 0.2 mm
2001 17.6° 13.1° 0.2 mm
2000 28° 17.3° 0 mm
1999 14.8° 9.9° 0 mm
1998 23° 8.5° 0 mm
1997 20.7° 13.4° 6.8 mm
1996 23.7° 12.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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