September 7 in Santa Rosa, through the years

Typical high: 18.7°. Hottest: 21.9° (1997). Coldest night: 5.8° (2006).

YEARHIGHLOWRAIN
2025 17.2° 9.7° 4.3 mm
2024 18.3° 8.6° 0.5 mm
2023 18.6° 9.4° 0.5 mm
2022 19.4° 6.4° 0.2 mm
2021 19.4° 7.7° 0 mm
2020 17.7° 9.7° 3.2 mm
2019 15.7° 10.4° 3.1 mm
2018 20.7° 7.4° 0 mm
2017 16.5° 11.9° 11.4 mm
2016 16.5° 7.4° 2.2 mm
2015 20.6° 9.5° 0.1 mm
2014 20° 9.7° 1 mm
2013 19.8° 8.9° 5 mm
2012 21° 8.5° 0 mm
2011 19.4° 8.5° 1.6 mm
2010 19.2° 10.2° 6.5 mm
2009 21.4° 9.4° 1.3 mm
2008 15.2° 7 mm
2007 16.1° 10.5° 4.2 mm
2006 18.2° 5.8° 0.9 mm
2005 16.8° 7.6° 5.4 mm
2004 19.2° 10.3° 2.4 mm
2003 19.3° 9.3° 1.2 mm
2002 19.6° 11.2° 4.4 mm
2001 21.2° 8.4° 0.3 mm
2000 17.5° 10.8° 1.9 mm
1999 19.8° 8.9° 1.2 mm
1998 16.7° 10° 2.1 mm
1997 21.9° 7.2° 0 mm
1996 19° 6.3° 0.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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