September 1 in Los Altos, through the years

Typical high: 27°. Hottest: 28.9° (2019). Coldest night: 16.5° (1996).

YEARHIGHLOWRAIN
2025 28.7° 19.2° 16.9 mm
2024 28.2° 18.4° 10.5 mm
2023 24.7° 17.4° 14.8 mm
2022 28.2° 17.8° 15 mm
2021 26.9° 18.1° 2 mm
2020 27.2° 18.3° 1.5 mm
2019 28.9° 18.6° 13.3 mm
2018 26.5° 17.4° 4.5 mm
2017 24.4° 17.5° 15.8 mm
2016 28.9° 18.6° 28.6 mm
2015 26.9° 17.4° 11.9 mm
2014 27.7° 18° 10.5 mm
2013 27.3° 18.7° 6.3 mm
2012 28.5° 17.8° 26.2 mm
2011 24.3° 17.9° 10.5 mm
2010 28.6° 18.7° 14.4 mm
2009 28.1° 18.2° 19.2 mm
2008 28.3° 17.8° 15.6 mm
2007 28.1° 18.8° 5.9 mm
2006 24.8° 17.3° 2.4 mm
2005 26.9° 17.2° 17.3 mm
2004 26.2° 17.3° 22.9 mm
2003 27.8° 19.2° 7 mm
2002 25.9° 19.3° 5.2 mm
2001 25.8° 18.8° 13.9 mm
2000 25.9° 18.8° 3.6 mm
1999 27.7° 18.3° 10.1 mm
1998 27.1° 18.2° 2.1 mm
1997 26.3° 16.9° 6.8 mm
1996 24.8° 16.5° 6.6 mm
Source: ERA5 reanalysis (Copernicus C3S)

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