September 4 in Rock Island, through the years

Typical high: 21.2°. Hottest: 29° (1999). Coldest night: 5.2° (2000).

YEARHIGHLOWRAIN
2025 25.3° 11.4° 0 mm
2024 22.8° 10.1° 0 mm
2023 28.2° 15.1° 0 mm
2022 17.4° 12.8° 0.5 mm
2021 21° 10° 0 mm
2020 20° 12.7° 0 mm
2019 20.6° 12.9° 11.5 mm
2018 23.4° 16° 0.5 mm
2017 21.5° 10.7° 3.1 mm
2016 24° 7.4° 0 mm
2015 23.3° 10.5° 0 mm
2014 24.8° 11.3° 0 mm
2013 19° 12.1° 1.2 mm
2012 19.3° 14.2° 5.3 mm
2011 25.5° 18.1° 19.3 mm
2010 21.3° 12.6° 1.7 mm
2009 23.6° 11.9° 0 mm
2008 23.7° 14.7° 1.1 mm
2007 17.1° 8.6° 0 mm
2006 16.1° 13.3° 0.8 mm
2005 17.8° 8.9° 1.6 mm
2004 18° 10.5° 2.2 mm
2003 18.4° 13.4° 10.1 mm
2002 24.6° 15.3° 2.8 mm
2001 19.4° 12.5° 2.4 mm
2000 14.4° 5.2° 7.1 mm
1999 29° 14.7° 0 mm
1998 19.2° 12° 1.2 mm
1997 12.5° 5.8° 0.6 mm
1996 25.4° 11.8° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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