September 4 in Santa Rosa, through the years

Typical high: 29.4°. Hottest: 33.2° (1996). Coldest night: 13.6° (2004).

YEARHIGHLOWRAIN
2025 25.6° 18.5° 0.2 mm
2024 31° 20° 0.9 mm
2023 28.9° 21.4° 1.1 mm
2022 29.7° 18.7° 0.3 mm
2021 31.2° 20.9° 0 mm
2020 26.5° 19.4° 1.9 mm
2019 29.1° 19.3° 0.3 mm
2018 29.9° 19.3° 0 mm
2017 26° 18.2° 0 mm
2016 28° 18.3° 0.7 mm
2015 31.7° 17° 0 mm
2014 31.4° 20.6° 0 mm
2013 30.4° 20.5° 0 mm
2012 28.9° 17.2° 0.2 mm
2011 29.7° 17.3° 0 mm
2010 29.4° 16.1° 0 mm
2009 31.4° 21.5° 0.5 mm
2008 29.2° 17° 0.1 mm
2007 26.6° 19.5° 2.2 mm
2006 32.4° 19.1° 0 mm
2005 28.4° 19.2° 0 mm
2004 31.2° 13.6° 0 mm
2003 26.8° 20.8° 1.4 mm
2002 30.3° 21.8° 0.9 mm
2001 27.7° 19.4° 0.4 mm
2000 30.3° 17.8° 0 mm
1999 29.8° 15.6° 0 mm
1998 29.9° 18.7° 0.2 mm
1997 28.6° 20.3° 2.4 mm
1996 33.2° 21° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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