September 1 in Santa Rosa, through the years

Typical high: 35°. Hottest: 37.2° (2025). Coldest night: 18.6° (2020).

YEARHIGHLOWRAIN
2025 37.2° 19.2° 0 mm
2024 36.8° 19.8° 0 mm
2023 31.2° 22.3° 3.7 mm
2022 35.5° 18.8° 0 mm
2021 31.3° 23.5° 0.7 mm
2020 36.3° 18.6° 0 mm
2019 36.2° 21.3° 0 mm
2018 36.2° 21.7° 0 mm
2017 35.5° 22.1° 0 mm
2016 36.5° 22.7° 0 mm
2015 35.5° 21.3° 0 mm
2014 33.7° 22.9° 0.1 mm
2013 35.3° 22.3° 0 mm
2012 34.2° 22.9° 0.3 mm
2011 36.3° 21.2° 0 mm
2010 35.8° 20.3° 0 mm
2009 35.4° 20.6° 0 mm
2008 33.4° 22.7° 0.2 mm
2007 35.1° 22.5° 0 mm
2006 35.1° 22.3° 0 mm
2005 36.2° 22.3° 0 mm
2004 32.1° 22.5° 3.6 mm
2003 32.1° 21.7° 0.5 mm
2002 35.6° 23.5° 0 mm
2001 33.7° 22.1° 0 mm
2000 35.6° 22.3° 0 mm
1999 35.2° 22.3° 0 mm
1998 35.8° 23.6° 0 mm
1997 35.6° 21.2° 0 mm
1996 35.5° 22.2° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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