August 21 in River Sioux, through the years

Typical high: 28.9°. Hottest: 35.5° (2023). Coldest night: 10.5° (2004).

YEARHIGHLOWRAIN
2025 29.8° 19° 0 mm
2024 24.6° 18.2° 5.2 mm
2023 35.5° 22° 0 mm
2022 27.8° 15.1° 0 mm
2021 25° 15.6° 0 mm
2020 32.9° 18.9° 0 mm
2019 25.7° 17.8° 8.3 mm
2018 22.4° 15° 0.3 mm
2017 29° 17.5° 16 mm
2016 26° 11.4° 0 mm
2015 27.8° 17.2° 0.1 mm
2014 32.2° 24° 0.2 mm
2013 32.1° 21.9° 0 mm
2012 31.6° 13.7° 0 mm
2011 27.8° 16° 0 mm
2010 32.7° 20.7° 0 mm
2009 21.9° 14.6° 0 mm
2008 24.3° 18.5° 0.1 mm
2007 32.4° 19.8° 18.8 mm
2006 29.4° 16.2° 0 mm
2005 30.7° 19.8° 0.2 mm
2004 27° 10.5° 0 mm
2003 31.3° 18.9° 0 mm
2002 30.3° 22.3° 5 mm
2001 34.3° 18.9° 0.4 mm
2000 29.8° 19.3° 0.1 mm
1999 28.7° 17.8° 0 mm
1998 29.9° 20.4° 41.7 mm
1997 25.5° 12.1° 0 mm
1996 29.9° 20.4° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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