August 19 in Illinois, through the years

Typical high: 37.4°. Hottest: 40.5° (2023). Coldest night: 23.1° (1998).

YEARHIGHLOWRAIN
2025 38.7° 27.7° 1.2 mm
2024 38.9° 27.8° 0 mm
2023 40.5° 28° 0 mm
2022 34° 26° 1.8 mm
2021 38.3° 27.3° 0 mm
2020 37.7° 23.8° 0 mm
2019 39.1° 28.1° 0 mm
2018 37.5° 26.4° 0 mm
2017 37.5° 26.3° 0 mm
2016 34.4° 25.8° 18.4 mm
2015 40° 27.8° 1.2 mm
2014 37.3° 26.2° 0 mm
2013 37.5° 25.4° 0 mm
2012 34.9° 26.5° 0.8 mm
2011 40.2° 27.1° 0 mm
2010 38.9° 27.4° 0 mm
2009 39.2° 27.6° 0 mm
2008 33.3° 23.8° 5.5 mm
2007 37.3° 25.7° 0 mm
2006 37.8° 26.5° 0 mm
2005 37.5° 27.4° 0 mm
2004 37.9° 25.6° 0 mm
2003 37.9° 25.4° 0 mm
2002 38.5° 26.4° 0 mm
2001 34.8° 27.7° 0.7 mm
2000 36.9° 26.3° 0 mm
1999 38.6° 26.9° 0 mm
1998 31.6° 23.1° 9.4 mm
1997 38.7° 26.2° 0 mm
1996 36.6° 25.7° 1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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