September 6 in Santa Rosa, through the years

Typical high: 16.2°. Hottest: 20.3° (2020). Coldest night: 2.2° (1999).

YEARHIGHLOWRAIN
2025 13.3° 5.5° 4 mm
2024 18.9° 6.9° 2.1 mm
2023 17.1° 4.1° 2.8 mm
2022 16° 4.2° 0 mm
2021 15.2° 5.2° 2.3 mm
2020 20.3° 5.3° 0.2 mm
2019 14.5° 4.2° 0.9 mm
2018 16.8° 3.6° 0.7 mm
2017 16.1° 4.6° 0.2 mm
2016 14.7° 4.2° 1.1 mm
2015 16.5° 6.6° 0.7 mm
2014 15.3° 4.9° 8.2 mm
2013 16.6° 2.6° 1.9 mm
2012 15.3° 5.6° 0.8 mm
2011 15.3° 0.2 mm
2010 14.3° 7.9° 3.6 mm
2009 18.6° 6.3° 0 mm
2008 16.6° 5.1° 0 mm
2007 14.7° 3.3° 0.2 mm
2006 15.5° 5.7° 0.6 mm
2005 16.2° 3.3° 0.6 mm
2004 14.2° 5.9 mm
2003 15.7° 2.5° 2.5 mm
2002 16.5° 4.3° 0.4 mm
2001 15.2° 5.7° 1.5 mm
2000 16.6° 0.2 mm
1999 19.5° 2.2° 1.1 mm
1998 15° 6.4° 0 mm
1997 18.1° 4.5° 0 mm
1996 16.4° 0.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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