September 4 in Santa Rosa, through the years

Typical high: 32.1°. Hottest: 34.5° (2019). Coldest night: 23° (2000).

YEARHIGHLOWRAIN
2025 32.6° 25.4° 4.1 mm
2024 34.2° 25.1° 9.7 mm
2023 34.2° 23.6° 12.5 mm
2022 31.9° 24.5° 0.4 mm
2021 31.9° 25.6° 9 mm
2020 31.2° 24.4° 3.5 mm
2019 34.5° 26.9° 2.6 mm
2018 32.3° 24.8° 3.1 mm
2017 32.6° 26.6° 4.4 mm
2016 33.4° 25.7° 6.6 mm
2015 34.5° 25.1° 5.6 mm
2014 32.5° 24.3° 1.4 mm
2013 30.4° 23.5° 8.6 mm
2012 33.5° 25.4° 7.4 mm
2011 32.8° 24.3° 1.8 mm
2010 30.1° 24.4° 9.5 mm
2009 33° 25.8° 16.7 mm
2008 28.2° 23.3° 1.4 mm
2007 31.5° 23.9° 6.8 mm
2006 30.1° 24.8° 6.7 mm
2005 32.7° 24.8° 5.1 mm
2004 30.7° 25° 31.7 mm
2003 32.6° 24.4° 6.8 mm
2002 33.9° 23.9° 7.5 mm
2001 32.9° 24.3° 11.3 mm
2000 27.9° 23° 23.8 mm
1999 32.3° 23.8° 11.6 mm
1998 30.3° 23.9° 12 mm
1997 34.3° 24.6° 2.1 mm
1996 28.5° 23.2° 7.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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