September 5 in Napa, through the years

Typical high: 16.8°. Hottest: 20.9° (2011). Coldest night: 5.7° (2012).

YEARHIGHLOWRAIN
2025 18.8° 11.1° 2.6 mm
2024 16.1° 10.9° 20.2 mm
2023 20.5° 8.8° 0 mm
2022 13.5° 9.5° 13.1 mm
2021 16.9° 11.4° 6.1 mm
2020 17.1° 10.9° 1.1 mm
2019 18.2° 10.5° 2.5 mm
2018 20.8° 12.2° 0.7 mm
2017 18.4° 11.3° 1.6 mm
2016 15.4° 10.9° 9.8 mm
2015 17.8° 11.4° 2.1 mm
2014 19.4° 11° 0 mm
2013 13.8° 10.6° 42.2 mm
2012 14.1° 5.7° 2.4 mm
2011 20.9° 10.6° 0.1 mm
2010 14.8° 9.1° 2.7 mm
2009 19.7° 10.5° 0.6 mm
2008 14.5° 8.1° 7.7 mm
2007 10.5° 6.3° 7.9 mm
2006 16.9° 10.8° 11.9 mm
2005 15° 9.1° 3.7 mm
2004 15.5° 11.3° 2.8 mm
2003 15.2° 8.9° 4.3 mm
2002 16.5° 7.9° 4.9 mm
2001 15.3° 10.1° 2.5 mm
2000 17.1° 10.7° 8.8 mm
1999 18.2° 11.4° 6.7 mm
1998 17.5° 1 mm
1997 19.3° 5.8° 0.1 mm
1996 16.2° 9.9° 0.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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