September 9 in Welwyn Garden City, through the years

Typical high: 19.7°. Hottest: 31.2° (2023). Coldest night: 7.3° (2013).

YEARHIGHLOWRAIN
2025 20.2° 8.4° 0.3 mm
2024 16° 11.2° 0 mm
2023 31.2° 17.8° 0 mm
2022 19.1° 14.1° 4.4 mm
2021 22° 15.8° 3.5 mm
2020 20.3° 12.7° 0 mm
2019 14.1° 10.6° 5 mm
2018 21.5° 13.7° 0 mm
2017 15.9° 9.9° 2.6 mm
2016 21.3° 14.5° 0 mm
2015 17.7° 11° 0.3 mm
2014 20.2° 9.7° 0 mm
2013 13.3° 7.3° 10.3 mm
2012 26.8° 10° 0 mm
2011 21.9° 15.3° 0 mm
2010 19.3° 12° 0.3 mm
2009 18.8° 12.2° 0 mm
2008 19.2° 12.1° 5.6 mm
2007 20.1° 13.4° 0 mm
2006 20.1° 10.9° 0 mm
2005 24.4° 13.3° 3.3 mm
2004 23.1° 14.6° 0 mm
2003 18.7° 12.4° 0 mm
2002 16.5° 10.5° 13.3 mm
2001 14.4° 8.3° 0 mm
2000 21.7° 14.9° 0 mm
1999 19.9° 11.9° 0 mm
1998 19.1° 15° 3.6 mm
1997 19.9° 11° 0 mm
1996 15.7° 12.1° 0.2 mm
Source: ERA5 reanalysis (Copernicus C3S)

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