September 7 in South San Ysidro, through the years

Typical high: 24.6°. Hottest: 31° (2023). Coldest night: (2004).

YEARHIGHLOWRAIN
2025 24.4° 8.8° 0.2 mm
2024 25.2° 9.7° 1 mm
2023 31° 11.7° 0 mm
2022 29.6° 10.3° 0 mm
2021 28.6° 11.9° 0 mm
2020 30.5° 12.4° 0 mm
2019 28.3° 12.7° 4.4 mm
2018 20.9° 8.9° 5.4 mm
2017 26.2° 8.1° 0.3 mm
2016 20.6° 12.6° 1.4 mm
2015 27.5° 11° 0.1 mm
2014 23.2° 10.1° 0.1 mm
2013 27.9° 11° 0.2 mm
2012 26° 11.6° 2.3 mm
2011 18° 11.1° 5.9 mm
2010 23° 8.9° 0 mm
2009 24.4° 9.8° 0 mm
2008 23.7° 8.5° 2 mm
2007 23° 12.6° 0 mm
2006 19.3° 9.3° 13.3 mm
2005 20.5° 13.2° 11.8 mm
2004 21.4° 0 mm
2003 22.4° 10.2° 0.4 mm
2002 25° 13.4° 0 mm
2001 21.4° 9.7° 0 mm
2000 26° 11.8° 0 mm
1999 26.4° 10.2° 0 mm
1998 25.1° 10.6° 0 mm
1997 25.6° 9.4° 0.1 mm
1996 22.7° 10.1° 0.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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