September 9 in Harefield, through the years

Typical high: 16.1°. Hottest: 23.4° (2013). Coldest night: -0.4° (2008).

YEARHIGHLOWRAIN
2025 19.1° 7.5° 0.3 mm
2024 15.2° 6.3° 0 mm
2023 11.1° 0.9° 0.1 mm
2022 17.2° 11° 12.5 mm
2021 19.7° 1.9° 0 mm
2020 19° 10.5° 5.1 mm
2019 12.1° 4.3° 0 mm
2018 15.7° 1.4° 0 mm
2017 14.1° 1.6° 0 mm
2016 15.9° 12.2° 16.1 mm
2015 14.7° 1.3° 0 mm
2014 18.6° 10.8° 9.3 mm
2013 23.4° 5.4° 0 mm
2012 15.9° 5.5° 0 mm
2011 11° 3.9° 1.2 mm
2010 13.9° 7.3° 14.1 mm
2009 13.5° 6.4° 0.2 mm
2008 15° -0.4° 0 mm
2007 19.1° 5.4° 0 mm
2006 17.3° 6.8° 1.1 mm
2005 19.4° 11.2° 9.7 mm
2004 12.6° 6.1° 2.5 mm
2003 16.4° 0 mm
2002 15.2° 6.2° 0 mm
2001 16.6° 10 mm
2000 13.7° 9.1° 9.3 mm
1999 17° 0 mm
1998 19° 0 mm
1997 15.3° 0 mm
1996 15.8° 3.8° 4.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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