September 4 in Lake Forest, through the years

Typical high: 30°. Hottest: 33.9° (2015). Coldest night: 14.5° (2017).

YEARHIGHLOWRAIN
2025 29.8° 18.1° 0.1 mm
2024 27.4° 17.6° 0 mm
2023 33° 17.7° 0 mm
2022 26.4° 22.4° 26 mm
2021 29.4° 16° 0 mm
2020 33° 23.2° 0 mm
2019 33.2° 20.9° 0 mm
2018 31.3° 22.5° 0 mm
2017 30.2° 14.5° 0 mm
2016 29.8° 20.2° 0 mm
2015 33.9° 21.4° 0 mm
2014 28.3° 22° 4.4 mm
2013 30.7° 20.2° 0 mm
2012 25.9° 22° 15.5 mm
2011 28.9° 21.6° 2.7 mm
2010 28.2° 18.2° 0 mm
2009 29.1° 17.5° 0 mm
2008 30° 16° 0 mm
2007 33.7° 20.3° 0 mm
2006 29.2° 21.6° 4.2 mm
2005 30.2° 19° 0 mm
2004 28.3° 19.3° 0 mm
2003 29.7° 21.6° 6.2 mm
2002 33.2° 20.2° 0.2 mm
2001 25.8° 20.7° 19.1 mm
2000 29.6° 21° 2.9 mm
1999 32.7° 18.5° 0 mm
1998 33.2° 18.2° 0 mm
1997 28° 18° 0 mm
1996 28.2° 19.5° 12.2 mm
Source: ERA5 reanalysis (Copernicus C3S)

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