September 4 in Alcatraz, through the years

Typical high: 28.5°. Hottest: 34° (2020). Coldest night: 7.8° (2008).

YEARHIGHLOWRAIN
2025 26.9° 15.4° 0.4 mm
2024 31.5° 12.4° 0 mm
2023 27.5° 15.8° 0 mm
2022 30.1° 14.8° 0 mm
2021 29.2° 13.6° 0 mm
2020 34° 15.4° 0 mm
2019 33° 20.7° 0 mm
2018 26.4° 12° 0 mm
2017 33.3° 15.2° 0 mm
2016 28.9° 15.6° 0 mm
2015 23.2° 16.7° 2.2 mm
2014 23.9° 15.4° 0.4 mm
2013 32.3° 16.9° 0 mm
2012 31.6° 16.2° 0 mm
2011 28.3° 15.3° 6.1 mm
2010 31.3° 12° 0 mm
2009 28.5° 14.5° 0.7 mm
2008 24.9° 7.8° 0 mm
2007 29.3° 14.7° 0 mm
2006 26.6° 12.7° 0 mm
2005 24.1° 14.5° 4.5 mm
2004 18.7° 9.5° 19.1 mm
2003 28.2° 14.4° 0.1 mm
2002 29.3° 13.6° 0 mm
2001 29.7° 15° 0.2 mm
2000 31° 10.9° 0.8 mm
1999 23.9° 8.5° 0 mm
1998 29.9° 15.7° 0 mm
1997 27.4° 15.4° 0.1 mm
1996 31.3° 16.9° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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