September 1 in Allentown, through the years

Typical high: 27.4°. Hottest: 37.4° (2011). Coldest night: 8.7° (2009).

YEARHIGHLOWRAIN
2025 25.6° 12.6° 0 mm
2024 27° 15° 0 mm
2023 26.8° 11.4° 0 mm
2022 28.5° 15.5° 0 mm
2021 26.6° 17.3° 0 mm
2020 24.5° 21.1° 5 mm
2019 23.8° 17.8° 13.6 mm
2018 31.4° 23° 0 mm
2017 22.3° 13.6° 0 mm
2016 25° 15.7° 0 mm
2015 34.3° 22.7° 0 mm
2014 27.6° 22.1° 6.3 mm
2013 30.8° 19.8° 0 mm
2012 25.9° 23° 81.7 mm
2011 37.4° 24.6° 0 mm
2010 26.9° 21.1° 31 mm
2009 22.1° 8.7° 0 mm
2008 31.5° 19.6° 0 mm
2007 27.7° 13.2° 0 mm
2006 23.9° 17.8° 0.4 mm
2005 27.4° 17.3° 0 mm
2004 28.4° 13.8° 0 mm
2003 18.2° 15.1° 44.2 mm
2002 29.6° 18° 0 mm
2001 23° 14.2° 0 mm
2000 34° 21.8° 0 mm
1999 30.2° 12° 0 mm
1998 25.4° 17° 0 mm
1997 29.5° 17.2° 0.1 mm
1996 27.6° 16.6° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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