September 4 in Santa Rosa, through the years

Typical high: 33.5°. Hottest: 38.9° (2021). Coldest night: 14.6° (2016).

YEARHIGHLOWRAIN
2025 36.5° 22.9° 1.4 mm
2024 37° 21.7° 0 mm
2023 36.2° 24.8° 0.1 mm
2022 31.6° 19.3° 0 mm
2021 38.9° 25.6° 0.1 mm
2020 35.5° 23.1° 0 mm
2019 33.5° 22.8° 0.2 mm
2018 30.9° 16° 0 mm
2017 36.9° 23.7° 0 mm
2016 16.8° 14.6° 0 mm
2015 33.2° 22.4° 8.6 mm
2014 34.4° 24.6° 0.4 mm
2013 28.3° 21.7° 5.5 mm
2012 37.2° 22.5° 0 mm
2011 36.2° 22.6° 0.2 mm
2010 29.3° 23.5° 21.2 mm
2009 34.4° 24.2° 0.1 mm
2008 34.6° 23.6° 0.6 mm
2007 35.7° 23° 1.6 mm
2006 28.8° 18.9° 0 mm
2005 35.3° 17.5° 0 mm
2004 35.1° 21.3° 4 mm
2003 36.3° 22.7° 0.5 mm
2002 36.2° 20.9° 0.1 mm
2001 27.6° 22.1° 9.9 mm
2000 29.1° 16.7° 0 mm
1999 35.1° 21.6° 0 mm
1998 33.3° 24.5° 1.9 mm
1997 34.1° 23.6° 0.9 mm
1996 35.8° 24.2° 1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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