September 8 in Santa Rosa, through the years

Typical high: 20.4°. Hottest: 22.8° (2021). Coldest night: 10.9° (1998).

YEARHIGHLOWRAIN
2025 19.6° 12.3° 7.4 mm
2024 18.7° 12.6° 2.8 mm
2023 19.4° 12.3° 3.8 mm
2022 18.9° 11.1° 5.4 mm
2021 22.8° 12.4° 4.9 mm
2020 19.7° 12.2° 18.1 mm
2019 21.3° 11.6° 0 mm
2018 19.5° 12.1° 3.2 mm
2017 19.1° 13.4° 15.3 mm
2016 20.7° 12.4° 8.5 mm
2015 21.3° 14.3° 3.2 mm
2014 21.3° 11.8° 0.1 mm
2013 22° 12.7° 9 mm
2012 20.8° 12.7° 1 mm
2011 19° 11.4° 9.8 mm
2010 18.3° 12.6° 20.9 mm
2009 20.1° 13.1° 4 mm
2008 20.7° 12.3° 2.6 mm
2007 20.1° 11.2° 2.3 mm
2006 21.2° 11.3° 4.9 mm
2005 22° 11.3° 0 mm
2004 21.1° 11.9° 28.4 mm
2003 20.1° 12.2° 12.7 mm
2002 21.6° 11.3° 0 mm
2001 20.8° 11.5° 1.3 mm
2000 21.5° 11.2° 4.6 mm
1999 19.8° 11.5° 6.3 mm
1998 19.9° 10.9° 2.2 mm
1997 18.1° 12.7° 4.3 mm
1996 22.4° 11.1° 2.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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