September 11 in Rockford (historical), through the years

Typical high: 21.6°. Hottest: 29.7° (2017). Coldest night: -0.8° (2014).

YEARHIGHLOWRAIN
2025 21.6° 13.1° 0.2 mm
2024 24.4° 11.3° 1.1 mm
2023 24.2° 7.8° 0 mm
2022 28.9° 7.3° 0 mm
2021 21° 12.7° 0 mm
2020 25.2° 8.1° 0 mm
2019 12.6° 8.2° 0.6 mm
2018 20° 8.2° 0 mm
2017 29.7° 12.5° 0 mm
2016 19.8° 4.9° 1.9 mm
2015 25° 5.8° 0 mm
2014 4.4° -0.8° 1.4 mm
2013 24.5° 8.9° 0 mm
2012 16.7° 5.4° 0 mm
2011 28.7° 9.5° 0 mm
2010 20.4° 5.2° 0 mm
2009 19.7° 4.9° 0 mm
2008 18.4° 5.2° 2.3 mm
2007 27° 6.1° 0 mm
2006 25° 8.6° 0 mm
2005 17.7° 6.7° 0 mm
2004 27.5° 7.7° 0 mm
2003 20.5° 7.7° 1.1 mm
2002 23.9° 9.2° 0 mm
2001 19.9° 0 mm
2000 18.9° 3.3° 0 mm
1999 9.5° 3.4° 7.9 mm
1998 24.3° 9.7° 0 mm
1997 24.3° 12.5° 0.9 mm
1996 23° 8.1° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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