September 9 in Philadelphia, through the years

Typical high: 17.8°. Hottest: 27.2° (2021). Coldest night: 5.9° (2018).

YEARHIGHLOWRAIN
2025 21.5° 11.7° 0 mm
2024 18.5° 9.3° 0 mm
2023 16.4° 10.1° 0.6 mm
2022 19.4° 9.1° 0 mm
2021 27.2° 9.5° 0 mm
2020 17.9° 12.1° 0 mm
2019 20.7° 13.8° 0 mm
2018 17.1° 5.9° 0 mm
2017 19.8° 10° 0 mm
2016 16.5° 10.6° 0.7 mm
2015 16.6° 8.8° 0.4 mm
2014 20.8° 10.2° 0 mm
2013 15° 9.2° 0 mm
2012 15.6° 11.1° 5.5 mm
2011 17.4° 13.3° 0.2 mm
2010 18.6° 12.1° 0.1 mm
2009 15.8° 9.1° 0 mm
2008 15.2° 11.1° 6.9 mm
2007 17.3° 9.6° 0 mm
2006 17.7° 13.1° 0 mm
2005 18.1° 10.8° 0 mm
2004 20.7° 10.6° 0 mm
2003 16.6° 13° 4.4 mm
2002 14.9° 11.4° 5.4 mm
2001 16.6° 13° 4.4 mm
2000 18° 10° 5.4 mm
1999 12.1° 7.9° 21.5 mm
1998 18.1° 7.5° 0 mm
1997 18.7° 7.6° 0 mm
1996 15.4° 9.8° 1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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