September 9 in Boston, through the years

Typical high: 23.3°. Hottest: 34.7° (2008). Coldest night: 3.2° (2018).

YEARHIGHLOWRAIN
2025 24° 13.6° 0 mm
2024 5.2° 2.7 mm
2023 32.5° 10.9° 0 mm
2022 28.4° 9.9° 0.1 mm
2021 19.6° 4.2° 0 mm
2020 27.7° 9.8° 0 mm
2019 27.4° 8.1° 0 mm
2018 14.5° 3.2° 0.5 mm
2017 25.4° 9.1° 0 mm
2016 18.7° 8.4° 2 mm
2015 23.1° 8.5° 0 mm
2014 29.9° 11.2° 0 mm
2013 13.9° 7.6° 5 mm
2012 24.8° 8.5° 0 mm
2011 30.8° 12.5° 0 mm
2010 21.7° 9.6° 4.9 mm
2009 9.8° 5.2° 4.8 mm
2008 34.7° 11.8° 0 mm
2007 27.7° 13.5° 0 mm
2006 27.5° 11.3° 0 mm
2005 28.2° 6.8° 0 mm
2004 8.5° 4.6° 1.7 mm
2003 20.9° 10.4° 1.5 mm
2002 24.6° 11.5° 1.4 mm
2001 30° 10.7° 0 mm
2000 25.8° 0 mm
1999 29.1° 12.9° 0 mm
1998 21.1° 8.9° 0 mm
1997 13.3° 7.1° 3.4 mm
1996 28.3° 8.4° 0.2 mm
Source: ERA5 reanalysis (Copernicus C3S)

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