September 4 in Willowbrook, through the years

Typical high: 17.8°. Hottest: 24.4° (2013). Coldest night: -1.5° (2016).

YEARHIGHLOWRAIN
2025 22.5° 11.1° 0 mm
2024 21.7° 0 mm
2023 14.8° 2.8° 0 mm
2022 20.8° 11.6° 0 mm
2021 20.6° 7.3° 0 mm
2020 18.8° 10.2° 0 mm
2019 17° 10.6° 1.8 mm
2018 17.7° -1.1° 0 mm
2017 23.4° 3.4° 0 mm
2016 13.2° -1.5° 0 mm
2015 10.8° 2.3° 0 mm
2014 18.5° 6.9° 0 mm
2013 24.4° 13.6° 0 mm
2012 20.9° 4.7° 0.2 mm
2011 21.6° 9.9° 0 mm
2010 14.7° 6.1° 3.2 mm
2009 21.2° 10° 1.1 mm
2008 15.8° 5.2° 0 mm
2007 16.7° 10.7° 0.2 mm
2006 24.4° 9.9° 0 mm
2005 17.8° 3.3° 0 mm
2004 13.3° 17.3 mm
2003 20.2° 9.9° 2.2 mm
2002 10° 3.2° 15.3 mm
2001 15.1° 6.2° 0 mm
2000 13.7° 3.6° 0 mm
1999 16.9° 10.3° 0 mm
1998 17.1° 6.4° 0 mm
1997 17.9° 9.2° 0.2 mm
1996 11.3° 1.8° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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