September 6 in Santa Rosa, through the years

Typical high: 27.8°. Hottest: 30.4° (2025). Coldest night: 17.4° (2019).

YEARHIGHLOWRAIN
2025 30.4° 18.2° 0 mm
2024 27.5° 20.3° 12.8 mm
2023 28.7° 18.2° 8.2 mm
2022 28.6° 18.3° 3.3 mm
2021 27.3° 18.4° 4.3 mm
2020 27.4° 18.6° 13.4 mm
2019 28° 17.4° 3.1 mm
2018 27.6° 17.9° 1.8 mm
2017 28.2° 18.1° 13.2 mm
2016 27° 17.7° 1.1 mm
2015 28° 18.9° 15.5 mm
2014 25.9° 18° 2.5 mm
2013 28.5° 18.5° 7 mm
2012 29° 18.4° 1 mm
2011 25.5° 19.1° 18 mm
2010 29.7° 20.2° 13.4 mm
2009 28.8° 19.6° 11.1 mm
2008 27° 19.5° 19.5 mm
2007 25.3° 18° 22.5 mm
2006 27.7° 19.1° 5.9 mm
2005 27° 18.3° 13.9 mm
2004 28.6° 18.2° 8 mm
2003 28.7° 18.8° 4.7 mm
2002 27.8° 18.3° 9.9 mm
2001 27.6° 19.1° 14 mm
2000 27° 18.6° 14.9 mm
1999 29° 18.6° 3.5 mm
1998 27° 19.5° 23.7 mm
1997 27.2° 18.8° 11.1 mm
1996 28.6° 17.5° 1.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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