September 4 in Santa Rosa, through the years

Typical high: 34.8°. Hottest: 37.6° (2015). Coldest night: 22.5° (1996).

YEARHIGHLOWRAIN
2025 35.4° 24.7° 12.9 mm
2024 35.5° 23.4° 13.9 mm
2023 35.9° 25.4° 13.2 mm
2022 35.5° 23.8° 9.9 mm
2021 32.3° 23.5° 3.4 mm
2020 33.7° 23.5° 11.6 mm
2019 37.2° 23.9° 10 mm
2018 32.6° 24.2° 15.3 mm
2017 35.1° 26.5° 2.8 mm
2016 34.5° 23.7° 29.5 mm
2015 37.6° 25.4° 3.7 mm
2014 36.4° 23.2° 6.2 mm
2013 32° 23.6° 8.3 mm
2012 36.7° 25.3° 14.7 mm
2011 34.7° 25.4° 9.3 mm
2010 31.9° 22.9° 4.5 mm
2009 37° 25.8° 15.1 mm
2008 31.3° 24.3° 1.1 mm
2007 33.5° 22.6° 11.3 mm
2006 32.4° 23.8° 4.7 mm
2005 36.6° 23.3° 6.8 mm
2004 35.1° 24.3° 18.5 mm
2003 35° 23° 9.9 mm
2002 37.2° 24.2° 12.4 mm
2001 34.5° 24.2° 13.6 mm
2000 34.2° 23° 14 mm
1999 35.4° 23.3° 11.2 mm
1998 35.3° 23.5° 6 mm
1997 35.7° 24.8° 1 mm
1996 34.3° 22.5° 6 mm
Source: ERA5 reanalysis (Copernicus C3S)

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