September 5 in Santa Rosa, through the years

Typical high: 14.5°. Hottest: 20.5° (2022). Coldest night: -0.6° (2025).

YEARHIGHLOWRAIN
2025 17.8° -0.6° 0 mm
2024 12.9° 0 mm
2023 10.6° 5.3° 24 mm
2022 20.5° 4.6° 0 mm
2021 13.5° 8.5° 0.1 mm
2020 14.2° 6.7° 1.8 mm
2019 12.4° 8.7° 2.4 mm
2018 12.5° 6.7° 0 mm
2017 12.2° 3.4° 1.7 mm
2016 18° 0.9° 0 mm
2015 20.3° 4.2° 0 mm
2014 13.6° 8.4° 15.4 mm
2013 13.9° 11.6° 1.1 mm
2012 18.7° 0 mm
2011 12.9° 2.4° 0 mm
2010 18.2° 8.2° 0 mm
2009 14.1° 8.1° 30.3 mm
2008 15.5° 3.5° 0 mm
2007 15.1° 1.5° 0 mm
2006 15.5° 2.6° 0 mm
2005 11.6° 5.7° 1.6 mm
2004 12.8° 7.9° 14.6 mm
2003 12.8° 29.4 mm
2002 12.4° 3.6° 0 mm
2001 13.3° 1.9° 0 mm
2000 12.3° 0 mm
1999 12.8° 9.4° 31.9 mm
1998 17.1° 0 mm
1997 12.7° 6.9° 2.3 mm
1996 16.1° 4.9° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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