September 5 in Ottumwa, through the years

Typical high: 29.3°. Hottest: 39° (2023). Coldest night: 10.8° (1997).

YEARHIGHLOWRAIN
2025 18° 12.6° 5.6 mm
2024 33.8° 16.8° 0.4 mm
2023 39° 25.7° 0 mm
2022 29.4° 18.2° 0 mm
2021 27.5° 15.4° 0 mm
2020 32.7° 19.5° 0 mm
2019 32.6° 20.6° 0 mm
2018 26.8° 21.8° 19.5 mm
2017 24.5° 14.2° 0 mm
2016 33° 21.8° 0 mm
2015 33.1° 22.3° 0 mm
2014 27.8° 16.3° 0.3 mm
2013 31.4° 15.7° 0 mm
2012 33.5° 21.9° 0.1 mm
2011 23.6° 11° 0 mm
2010 32.3° 15.6° 0 mm
2009 24.9° 16.2° 0.6 mm
2008 21.3° 10.9° 0.1 mm
2007 28.4° 21.6° 0.5 mm
2006 26.8° 12.2° 0 mm
2005 30.3° 18.5° 0 mm
2004 30.4° 21.4° 3.9 mm
2003 26.8° 12.7° 0 mm
2002 33.6° 20.5° 0 mm
2001 29.3° 19.3° 0.3 mm
2000 29° 19° 0 mm
1999 25° 17.7° 3.3 mm
1998 35° 20.7° 0 mm
1997 27.2° 10.8° 0 mm
1996 31.6° 18.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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