September 5 in Santa Rosa, through the years

Typical high: 6.1°. Hottest: 11.7° (2025). Coldest night: -8.9° (2023).

YEARHIGHLOWRAIN
2025 11.7° -5.6° 0 mm
2024 4.9° 1.2° 18.3 mm
2023 5.1° -8.9° 0 mm
2022 8.4° 2.4° 10.1 mm
2021 6.6° 6.6 mm
2020 6.3° -4° 0.2 mm
2019 2.3° -7.1° 0 mm
2018 4.1° 14.7 mm
2017 5.8° 0.4° 11.6 mm
2016 9.6° -4.1° 0 mm
2015 9.1° 0.8° 0.5 mm
2014 -2.1° 5.4 mm
2013 6.2° 1.5° 33.9 mm
2012 7.4° 0.5° 0 mm
2011 2.5° -3.5° 3.4 mm
2010 4.4° -0.1° 0.3 mm
2009 5.4° 0.5° 21.8 mm
2008 6.8° -4.7° 0 mm
2007 3.5° -1.5° 21.6 mm
2006 9.4° -2.8° 0 mm
2005 6.4° -1.9° 2.4 mm
2004 4.2° -1.8° 16.6 mm
2003 6.9° 1.9° 11.1 mm
2002 4.1° -0.4° 4.4 mm
2001 10.2° -5.4° 0 mm
2000 2.2° -0.1° 12.4 mm
1999 6.4° -1.8° 3.1 mm
1998 7.6° 2.1° 0 mm
1997 3.6° -2.2° 0.7 mm
1996 3.7° -1.8° 9.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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