September 11 in San Juan, through the years

Typical high: 6.5°. Hottest: 10° (2025). Coldest night: -3.7° (1998).

YEARHIGHLOWRAIN
2025 10° 6.2° 0.3 mm
2024 8.8° 4.3° 3.7 mm
2023 6.4° 2.6 mm
2022 8.2° 3.8° 1.1 mm
2021 8.4° 2.3° 0 mm
2020 1.9° 2.8 mm
2019 7.2° 5.1 mm
2018 8.3° 2.5° 3.4 mm
2017 8.7° 4.2° 1.9 mm
2016 -0.1° 0 mm
2015 5.8° 2.6° 4.2 mm
2014 6.4° 0.8° 4 mm
2013 -1.1° 0.8 mm
2012 6.7° 3.2° 0.3 mm
2011 6.4° 1.9° 5.7 mm
2010 6.5° 4.3° 0.1 mm
2009 8.8° 5.4° 8.4 mm
2008 7.8° -0.3° 0 mm
2007 6.1° 2.2° 0.1 mm
2006 0.7° 3.3 mm
2005 5.9° 2.1° 0 mm
2004 7.2° 2.9° 4.2 mm
2003 4.9° 0.7° 0.5 mm
2002 6.1° 3.4° 0 mm
2001 3.7° -1.3° 6.7 mm
2000 3.3° -1.3° 0 mm
1999 4.3° -2.4° 0 mm
1998 0.3° -3.7° 1.6 mm
1997 4.1° 0.7° 4.1 mm
1996 7.2° 1.3° 6.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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