September 1 in Harvard, through the years

Typical high: 25.7°. Hottest: 31.7° (2008). Coldest night: 5.6° (2009).

YEARHIGHLOWRAIN
2025 24.8° 9.4° 0 mm
2024 23.5° 14.4° 0 mm
2023 26.1° 10.9° 0 mm
2022 29.1° 14.2° 0 mm
2021 25.2° 14.1° 0 mm
2020 25.6° 17.3° 3.1 mm
2019 20.5° 13.4° 3.2 mm
2018 26.2° 20.8° 13.9 mm
2017 20.5° 7.7° 0 mm
2016 23.6° 14.6° 0 mm
2015 31.3° 16.1° 0 mm
2014 25.7° 18.2° 7.3 mm
2013 28.1° 16.4° 0 mm
2012 27.2° 16.4° 0 mm
2011 31.1° 17° 0 mm
2010 25.4° 20.3° 8.7 mm
2009 21.9° 5.6° 0 mm
2008 31.7° 14.4° 0 mm
2007 26.3° 13.3° 0 mm
2006 24° 12.8° 0.6 mm
2005 26.8° 13.1° 0 mm
2004 24.1° 12.7° 0 mm
2003 19° 13.2° 2.9 mm
2002 29.1° 14.2° 0 mm
2001 19.5° 8.5° 0 mm
2000 30.8° 19.6° 0 mm
1999 27.7° 11.8° 0 mm
1998 23.9° 11.6° 3.6 mm
1997 25.6° 13.1° 0 mm
1996 28° 12.9° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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