September 4 in West Hyannisport, through the years

Typical high: 21.1°. Hottest: 24.4° (2020). Coldest night: 13.9° (1997).

YEARHIGHLOWRAIN
2025 20.2° 17.7° 0 mm
2024 20.4° 18.2° 0 mm
2023 21.2° 20° 0 mm
2022 22.7° 19.4° 0 mm
2021 22.2° 18.3° 0 mm
2020 24.4° 20.6° 9.7 mm
2019 22.9° 19.2° 0 mm
2018 24.3° 22° 0 mm
2017 19.6° 16.1° 0 mm
2016 19.7° 18.6° 0 mm
2015 21.7° 18.7° 0 mm
2014 23.1° 20.7° 0 mm
2013 22.1° 18.6° 0 mm
2012 22.2° 19.3° 9.6 mm
2011 21.1° 19.9° 0 mm
2010 23.1° 21.3° 34.9 mm
2009 19.4° 17.5° 0 mm
2008 22.2° 19° 0 mm
2007 20.3° 18.5° 0 mm
2006 20.1° 18° 0 mm
2005 20.3° 18.9° 0 mm
2004 22.6° 17° 0 mm
2003 20.5° 18° 25.3 mm
2002 21.1° 18.5° 2.1 mm
2001 20.2° 18.3° 0 mm
2000 20.2° 17.4° 4.3 mm
1999 19.3° 18.4° 0 mm
1998 20° 18.8° 3.6 mm
1997 16.9° 13.9° 0 mm
1996 18.5° 17.1° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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