September 4 in Santa Rosa, through the years

Typical high: 23.1°. Hottest: 26.9° (2002). Coldest night: 11.1° (2012).

YEARHIGHLOWRAIN
2025 23.6° 14° 10.3 mm
2024 25.8° 14.4° 17.5 mm
2023 26.2° 12° 17.4 mm
2022 22.6° 12.9° 10 mm
2021 23.9° 13.3° 7 mm
2020 20.9° 12° 9 mm
2019 22.4° 14.4° 3.6 mm
2018 24.2° 12.5° 11.4 mm
2017 22.7° 13.5° 12.2 mm
2016 18.9° 14.4° 25 mm
2015 22.8° 14° 14.7 mm
2014 22.4° 12.2° 12.9 mm
2013 23.3° 12.1° 15.8 mm
2012 24.9° 11.1° 0.4 mm
2011 23.1° 14.7° 13.6 mm
2010 18.4° 14.5° 35 mm
2009 23.4° 14.2° 18.8 mm
2008 22.9° 14.4° 9.9 mm
2007 24.2° 12.5° 21.5 mm
2006 22.5° 13.1° 13.3 mm
2005 23.7° 12.7° 1.6 mm
2004 24.3° 13.2° 0.4 mm
2003 23.6° 13.4° 13.1 mm
2002 26.9° 13.6° 5.1 mm
2001 23.5° 13.9° 0.5 mm
2000 23.3° 12.9° 2.4 mm
1999 21.2° 14.2° 15.1 mm
1998 22.6° 13.6° 14.5 mm
1997 21.5° 13.1° 11.9 mm
1996 23° 12.9° 8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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