September 1 in La Mesa, through the years

Typical high: 26.6°. Hottest: 29.8° (2019). Coldest night: 15.6° (1996).

YEARHIGHLOWRAIN
2025 28.4° 18.4° 3.8 mm
2024 27.7° 16.9° 4.1 mm
2023 25.1° 16.6° 8.6 mm
2022 26.5° 16.5° 9.8 mm
2021 26.3° 17.2° 1 mm
2020 27.2° 17.4° 1.7 mm
2019 29.8° 17.9° 0 mm
2018 25.9° 16.2° 1.9 mm
2017 23.1° 16.4° 13.6 mm
2016 27.8° 17.9° 13.6 mm
2015 27.3° 16.7° 2.4 mm
2014 27.8° 17.7° 1.6 mm
2013 27.1° 17.4° 10.7 mm
2012 27.8° 16.3° 7 mm
2011 23.2° 17.1° 7.6 mm
2010 27.8° 17.9° 0.8 mm
2009 27.4° 17.2° 15 mm
2008 27.3° 16.1° 5.1 mm
2007 26.2° 17.2° 8.1 mm
2006 24.5° 15.8° 0.7 mm
2005 26.3° 16.8° 19.3 mm
2004 25.8° 16.7° 20.7 mm
2003 28.6° 18.6° 0.1 mm
2002 25.8° 18.4° 0.7 mm
2001 25.6° 17.6° 12.1 mm
2000 26.5° 17.9° 1.9 mm
1999 27.8° 17.8° 7.5 mm
1998 26.3° 17.1° 4.6 mm
1997 26.3° 15.9° 0.4 mm
1996 23.7° 15.6° 5.4 mm
Source: ERA5 reanalysis (Copernicus C3S)

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