September 9 in Pen-y-bryn, through the years

Typical high: 17.8°. Hottest: 23.8° (2023). Coldest night: 10° (2014).

YEARHIGHLOWRAIN
2025 16.5° 12.4° 11 mm
2024 15.3° 12.5° 0 mm
2023 23.8° 17.3° 0 mm
2022 17.9° 14.8° 3.5 mm
2021 18.8° 16.6° 10.6 mm
2020 18.7° 12° 0 mm
2019 15.5° 11.8° 20.7 mm
2018 16.8° 14.1° 2.1 mm
2017 14.9° 12.1° 2.8 mm
2016 19.2° 15.5° 3.8 mm
2015 17.5° 11.1° 0 mm
2014 19.4° 10° 0 mm
2013 17.4° 12.6° 3.9 mm
2012 17.8° 11.7° 2.2 mm
2011 18.2° 15.3° 1.1 mm
2010 17.4° 13.2° 0 mm
2009 18.7° 11° 0 mm
2008 17.1° 13.4° 10 mm
2007 17.9° 12.7° 0 mm
2006 20.2° 12.3° 0 mm
2005 19.8° 16.6° 3.1 mm
2004 23° 14° 0 mm
2003 15.6° 11° 1.2 mm
2002 14.8° 11.3° 13.3 mm
2001 15.7° 10.5° 0 mm
2000 18.4° 13.3° 0 mm
1999 17.5° 11° 0 mm
1998 16.8° 15.1° 21.3 mm
1997 18.3° 11.7° 0 mm
1996 16.4° 11.7° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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