September 5 in Santa Rosa, through the years

Typical high: 28.6°. Hottest: 31.8° (2009). Coldest night: 18.8° (2004).

YEARHIGHLOWRAIN
2025 27.2° 20.9° 34.5 mm
2024 30.2° 22° 6.5 mm
2023 30.7° 21.2° 1.3 mm
2022 29.2° 20.6° 8.9 mm
2021 24.3° 19.6° 7 mm
2020 30.4° 20.4° 13.8 mm
2019 27° 21.2° 18 mm
2018 26.8° 20.5° 5.6 mm
2017 28.2° 20.6° 5.6 mm
2016 27° 19.9° 10.7 mm
2015 29.5° 22.2° 10.7 mm
2014 31.2° 22.2° 1.6 mm
2013 28.5° 19.7° 18.2 mm
2012 28° 19.5° 29.4 mm
2011 29.2° 20° 3.5 mm
2010 27.5° 20.3° 4.4 mm
2009 31.8° 20.2° 5.3 mm
2008 29.5° 19.5° 4.8 mm
2007 27.3° 19.6° 8.9 mm
2006 27.4° 18.9° 10.4 mm
2005 30.9° 20.5° 2.4 mm
2004 27.5° 18.8° 8.8 mm
2003 26.9° 19.5° 7.8 mm
2002 30.1° 20.5° 5 mm
2001 28.3° 20.2° 20.6 mm
2000 28.5° 19.8° 20.3 mm
1999 29.2° 19.4° 4.5 mm
1998 27.6° 19.4° 4.2 mm
1997 29.8° 20.5° 5.5 mm
1996 27.6° 19.9° 7.5 mm
Source: ERA5 reanalysis (Copernicus C3S)

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