September 9 in Mount Vernon (historical), through the years

Typical high: 25.2°. Hottest: 34.3° (2022). Coldest night: 5.7° (2010).

YEARHIGHLOWRAIN
2025 17.6° 10.9° 2.5 mm
2024 29.2° 11.3° 0 mm
2023 25.1° 9.6° 0 mm
2022 34.3° 15.7° 0 mm
2021 29.6° 15.2° 0.1 mm
2020 26.7° 12° 0 mm
2019 19.1° 6.4° 0 mm
2018 28° 8.7° 0 mm
2017 25.7° 9.7° 0.3 mm
2016 29.7° 10.6° 0 mm
2015 30.3° 10.1° 0 mm
2014 24.7° 6.3° 0 mm
2013 29.7° 10.4° 0 mm
2012 26.2° 14.3° 0 mm
2011 29.9° 12.9° 0 mm
2010 14.8° 5.7° 0 mm
2009 26.6° 0 mm
2008 23.2° 9.4° 0 mm
2007 28.2° 10.5° 0.1 mm
2006 21.8° 0 mm
2005 18.1° 9.5° 2.3 mm
2004 28.5° 9.9° 0 mm
2003 14.7° 8.6° 3.1 mm
2002 27.4° 6.4° 0 mm
2001 26.7° 9.7° 0 mm
2000 24.3° 8.5° 0 mm
1999 25.6° 12.6° 0.5 mm
1998 16.9° 6.6° 7.9 mm
1997 24.7° 11.5° 1 mm
1996 27.5° 9.5° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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