September 1 in Riverside, through the years

Typical high: 27.7°. Hottest: 33.6° (2023). Coldest night: 9.5° (2009).

YEARHIGHLOWRAIN
2025 21.4° 16.4° 17.8 mm
2024 24.4° 14° 0 mm
2023 33.6° 17.3° 0 mm
2022 32.7° 18° 0 mm
2021 25° 15.6° 0 mm
2020 26.4° 13° 0.1 mm
2019 26.3° 15.5° 0 mm
2018 27.8° 19.7° 7 mm
2017 23.2° 17.6° 4.7 mm
2016 26.5° 13.2° 0 mm
2015 28.2° 19.5° 2.6 mm
2014 25.3° 16.4° 2.7 mm
2013 25.5° 16.4° 8.1 mm
2012 32.9° 18° 0 mm
2011 32.6° 22.2° 0 mm
2010 26.1° 14.1° 1.8 mm
2009 22.8° 9.5° 0 mm
2008 32.5° 22.1° 0 mm
2007 28.3° 16.5° 0 mm
2006 24.2° 16.5° 0.6 mm
2005 29.4° 11.7° 0 mm
2004 33° 15.9° 0 mm
2003 24.9° 13° 0 mm
2002 30.8° 20.4° 0 mm
2001 23.9° 14° 0 mm
2000 26.8° 16.1° 0 mm
1999 32.3° 21° 0.2 mm
1998 26.3° 13.5° 0 mm
1997 30.1° 20.7° 0.6 mm
1996 27.4° 17.3° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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