September 4 in East Ottumwa, through the years

Typical high: 27.2°. Hottest: 34.9° (2023). Coldest night: 8.1° (2025).

YEARHIGHLOWRAIN
2025 22.2° 8.1° 0 mm
2024 26.9° 10.9° 0 mm
2023 34.9° 21.1° 0 mm
2022 25.5° 18.5° 0 mm
2021 23.1° 16.3° 0.1 mm
2020 27.9° 9.7° 0 mm
2019 24.2° 14.3° 0 mm
2018 31.1° 22.7° 0.9 mm
2017 28.1° 17.9° 0.2 mm
2016 26.4° 16.1° 0 mm
2015 33.6° 21.1° 0 mm
2014 32.6° 22.9° 0.5 mm
2013 31.3° 12.5° 0 mm
2012 32.8° 21.5° 0 mm
2011 21.9° 13.7° 0 mm
2010 21.6° 9.1° 0 mm
2009 24.3° 14.1° 0 mm
2008 15.5° 13.4° 26 mm
2007 32.2° 17.3° 0 mm
2006 21.7° 12.9° 2.1 mm
2005 30.6° 17.8° 0.2 mm
2004 28.7° 16.8° 0.3 mm
2003 25.4° 11° 0 mm
2002 28° 13° 0 mm
2001 27.1° 14.4° 0 mm
2000 24.8° 14.8° 0 mm
1999 33.4° 21.2° 0 mm
1998 29.3° 17.9° 0 mm
1997 20.4° 9.8° 0 mm
1996 29.3° 17.2° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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