August 18 in McHenry, through the years

Typical high: 25.7°. Hottest: 29.3° (2005). Coldest night: 11.1° (2012).

YEARHIGHLOWRAIN
2025 27.8° 20.6° 13.5 mm
2024 25.2° 19.4° 1.6 mm
2023 24.5° 13.5° 0 mm
2022 27.9° 14.5° 0.1 mm
2021 28.9° 19.7° 0.6 mm
2020 23.9° 16.7° 0 mm
2019 27.3° 19.7° 4 mm
2018 26.1° 19.9° 0 mm
2017 26° 18.4° 0 mm
2016 29.2° 21° 1.8 mm
2015 26.9° 20° 5.7 mm
2014 27.7° 16.5° 2.6 mm
2013 26.8° 14.2° 0 mm
2012 23.3° 11.1° 0 mm
2011 27.9° 17.7° 0 mm
2010 27.1° 17.2° 0.4 mm
2009 26.2° 17.7° 2.6 mm
2008 28.8° 17.9° 0 mm
2007 18.6° 15.7° 3 mm
2006 26.3° 20.8° 42.9 mm
2005 29.3° 21.2° 5.4 mm
2004 24.4° 15.5° 1.2 mm
2003 28° 17.2° 0 mm
2002 25.7° 12.7° 0.2 mm
2001 21.8° 16.9° 10.9 mm
2000 23.6° 15.9° 0 mm
1999 22° 17.6° 3.4 mm
1998 24.3° 16.4° 0 mm
1997 19.3° 15° 0.3 mm
1996 26.5° 17.4° 1.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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