September 3 in Keystone (historical), through the years

Typical high: 28.1°. Hottest: 36° (2022). Coldest night: 6.1° (2004).

YEARHIGHLOWRAIN
2025 27.7° 17.6° 0.1 mm
2024 28.2° 16.2° 0 mm
2023 17.7° 10.1° 24.4 mm
2022 36° 17.6° 0 mm
2021 27.4° 11.6° 0 mm
2020 34.5° 17.5° 0 mm
2019 30.8° 15.8° 0 mm
2018 29.8° 15.3° 0 mm
2017 33.8° 18° 0 mm
2016 22.7° 13.5° 0.2 mm
2015 26° 13.9° 0 mm
2014 28.4° 13.6° 0 mm
2013 26.1° 15.5° 3.3 mm
2012 30.1° 10.3° 0 mm
2011 28.9° 12.3° 0 mm
2010 33.1° 13.6° 0 mm
2009 30.6° 16.1° 0 mm
2008 26.4° 10.4° 0 mm
2007 34.1° 14.3° 0 mm
2006 30.4° 16.9° 0 mm
2005 29.8° 13.5° 0 mm
2004 15.6° 6.1° 2 mm
2003 29.8° 11.6° 0 mm
2002 30° 13.3° 0 mm
2001 30.2° 14.7° 0 mm
2000 23° 6.8° 2 mm
1999 19.3° 8.9° 0 mm
1998 31.6° 12.6° 0 mm
1997 22.4° 12.8° 4.7 mm
1996 29.8° 13.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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