September 4 in Santa Rosa, through the years

Typical high: 32.6°. Hottest: 37.5° (2019). Coldest night: 20.8° (2006).

YEARHIGHLOWRAIN
2025 35.8° 23.2° 0 mm
2024 33.6° 22.7° 1.6 mm
2023 34.8° 24° 5.2 mm
2022 31.6° 22.1° 0.7 mm
2021 31.8° 21.9° 8.2 mm
2020 33.2° 20.9° 3.9 mm
2019 37.5° 23.3° 0 mm
2018 32.3° 22.6° 2.2 mm
2017 35.1° 22.3° 0 mm
2016 31.1° 23.4° 0 mm
2015 32.1° 21.4° 2.2 mm
2014 34.5° 21.5° 1.9 mm
2013 30.6° 22.6° 13.2 mm
2012 33.6° 22.9° 0 mm
2011 30.7° 22.2° 2.4 mm
2010 28.3° 21.8° 1 mm
2009 35.2° 23.7° 0.2 mm
2008 29.2° 21.5° 5.7 mm
2007 33.1° 21.3° 2.2 mm
2006 34.5° 20.8° 1.3 mm
2005 31.3° 21.9° 0.6 mm
2004 31.9° 21.6° 1.3 mm
2003 33.2° 21.7° 1.6 mm
2002 32° 20.9° 11.7 mm
2001 31° 21.4° 2.7 mm
2000 31° 22.1° 5.3 mm
1999 31.5° 21.4° 9.8 mm
1998 29.8° 21.9° 1.1 mm
1997 35° 23.5° 0.5 mm
1996 33° 21.6° 1.3 mm
Source: ERA5 reanalysis (Copernicus C3S)

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