September 5 in Santa Rosa, through the years

Typical high: 35.4°. Hottest: 42.8° (2020). Coldest night: 17.2° (2023).

YEARHIGHLOWRAIN
2025 29.7° 24° 5.8 mm
2024 40.6° 25.5° 0 mm
2023 35.5° 17.2° 0 mm
2022 35.5° 23.1° 0 mm
2021 33.9° 22.6° 0.4 mm
2020 42.8° 25.3° 0 mm
2019 36.7° 25.6° 1.1 mm
2018 36° 23° 0 mm
2017 31.2° 20.1° 0 mm
2016 34.5° 18.3° 0 mm
2015 34.6° 23.8° 4.4 mm
2014 34° 28° 0.4 mm
2013 38.5° 24.2° 0.7 mm
2012 33.6° 24° 0 mm
2011 37.7° 24° 0 mm
2010 37.1° 26.6° 0 mm
2009 29° 23.1° 0.5 mm
2008 41.2° 24.7° 0 mm
2007 35.6° 24.9° 0.2 mm
2006 32.4° 22° 0 mm
2005 40.4° 23.9° 0 mm
2004 28.3° 23.3° 4.5 mm
2003 29.2° 23.6° 13 mm
2002 37.4° 22.2° 0 mm
2001 38.1° 23° 0 mm
2000 36.4° 23.4° 0.2 mm
1999 37.5° 19.4° 0 mm
1998 37.6° 22.7° 0 mm
1997 35.1° 24.8° 0.1 mm
1996 32.4° 22.6° 1.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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