September 5 in San Juan, through the years

Typical high: 37.2°. Hottest: 44.6° (2020). Coldest night: 21.5° (2023).

YEARHIGHLOWRAIN
2025 33.5° 25.7° 0.8 mm
2024 40° 27.3° 0 mm
2023 35.3° 21.5° 0 mm
2022 40.9° 29° 0 mm
2021 38.1° 28.5° 0 mm
2020 44.6° 28.9° 0 mm
2019 38.1° 29.1° 0 mm
2018 36.8° 25.4° 0 mm
2017 36.4° 25.9° 0 mm
2016 34.7° 23.3° 0 mm
2015 33.7° 27° 1.7 mm
2014 37.6° 27.7° 0.3 mm
2013 40.3° 28.4° 0.7 mm
2012 35.4° 27.8° 1.8 mm
2011 37.3° 29.1° 1.2 mm
2010 37° 29.5° 1.1 mm
2009 35° 27.8° 0.2 mm
2008 41.1° 26.8° 0 mm
2007 36° 28.9° 0 mm
2006 34° 27.2° 2.5 mm
2005 38.9° 28.4° 0 mm
2004 33.6° 27° 0.2 mm
2003 34.8° 27.5° 2.3 mm
2002 37.3° 28.9° 0 mm
2001 37.4° 25.4° 0 mm
2000 36.5° 25.4° 0 mm
1999 39.8° 23.8° 0 mm
1998 38.3° 27.1° 0.8 mm
1997 36.7° 29.2° 0.8 mm
1996 35.6° 27.2° 1.2 mm
Source: ERA5 reanalysis (Copernicus C3S)

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