September 4 in Santa Rosa, through the years

Typical high: 30.3°. Hottest: 34.9° (2024). Coldest night: 17.9° (2000).

YEARHIGHLOWRAIN
2025 31.5° 21.7° 0.3 mm
2024 34.9° 21.5° 0 mm
2023 31.4° 22.2° 7.4 mm
2022 27.5° 20.5° 0.7 mm
2021 32.3° 22.6° 0.8 mm
2020 30.3° 22.9° 2.1 mm
2019 29.6° 20.9° 0.2 mm
2018 29° 18.4° 0 mm
2017 32° 21.3° 0.9 mm
2016 22.7° 19.4° 10.2 mm
2015 27.8° 21.8° 12.3 mm
2014 31.5° 22° 0 mm
2013 30.9° 21° 3.1 mm
2012 33.7° 21.2° 0 mm
2011 30.7° 20.2° 0 mm
2010 30.3° 21.7° 4.1 mm
2009 30.7° 22.4° 0.9 mm
2008 28.5° 21.4° 2.2 mm
2007 31.4° 20.3° 0.4 mm
2006 22.5° 19.9° 10.9 mm
2005 31.6° 19.2° 0 mm
2004 31° 20.6° 1.1 mm
2003 33° 20.7° 1.5 mm
2002 31.3° 20.1° 0 mm
2001 26.6° 20° 4.8 mm
2000 26.5° 17.9° 0 mm
1999 34.4° 21° 0 mm
1998 32° 21.9° 0 mm
1997 32.5° 22.2° 0 mm
1996 31.1° 21.3° 2.9 mm
Source: ERA5 reanalysis (Copernicus C3S)

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