September 3 in Santa Rosa, through the years

Typical high: 19.9°. Hottest: 21.9° (2021). Coldest night: 12.9° (1996).

YEARHIGHLOWRAIN
2025 20° 14.7° 8.5 mm
2024 19.7° 14.6° 6 mm
2023 21.3° 15.9° 18.6 mm
2022 19.8° 14.9° 3 mm
2021 21.9° 14.5° 7.2 mm
2020 20.3° 14° 6.3 mm
2019 21.6° 13.2° 5.6 mm
2018 20.9° 14.4° 6.4 mm
2017 21.8° 14.6° 7.5 mm
2016 20.2° 14.3° 8.3 mm
2015 21.3° 15° 6 mm
2014 20.8° 14° 12.1 mm
2013 19.6° 14.1° 15.1 mm
2012 20.3° 14.3° 3.8 mm
2011 19° 14.2° 5.3 mm
2010 20.7° 15.4° 18.2 mm
2009 20.3° 15.1° 6.6 mm
2008 20.9° 15.3° 14.2 mm
2007 19.5° 14.6° 9.4 mm
2006 19.9° 13.7° 14.1 mm
2005 17.9° 15.1° 5.5 mm
2004 19.7° 14.6° 3.9 mm
2003 18.8° 14.6° 3.8 mm
2002 18.7° 15.6° 8.6 mm
2001 18.2° 14.6° 16.4 mm
2000 18.5° 13.9° 17.2 mm
1999 19.4° 14.1° 17 mm
1998 18.7° 14.5° 24.3 mm
1997 20.3° 15.1° 21.6 mm
1996 17.1° 12.9° 10.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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