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

Typical high: 19°. Hottest: 28° (2023). Coldest night: 7.9° (2012).

YEARHIGHLOWRAIN
2025 18.3° 9.3° 4.1 mm
2024 17.5° 11° 0.2 mm
2023 28° 17.9° 0.1 mm
2022 19.9° 12.8° 3 mm
2021 19.8° 16.3° 4.1 mm
2020 21.1° 11.4° 0 mm
2019 13.6° 10.3° 19 mm
2018 19° 13.3° 0 mm
2017 15.8° 10.2° 0 mm
2016 20.5° 15.9° 0.4 mm
2015 17.5° 10.3° 0.1 mm
2014 21.1° 8.2° 0 mm
2013 17.3° 10.8° 8 mm
2012 21.1° 7.9° 0.2 mm
2011 19.5° 15.1° 0.2 mm
2010 19.6° 11.8° 0 mm
2009 18.7° 10.9° 0 mm
2008 17.3° 12.3° 14.5 mm
2007 19.2° 13.1° 0 mm
2006 21.7° 9.8° 0 mm
2005 21.3° 15.4° 2.3 mm
2004 24.9° 12.3° 0 mm
2003 17.3° 9.6° 0.1 mm
2002 14.3° 9.5° 17.7 mm
2001 15.9° 0 mm
2000 19.9° 11.1° 0 mm
1999 18.9° 8.9° 0 mm
1998 17.7° 14.7° 12.2 mm
1997 19.1° 9.9° 0 mm
1996 15.6° 11.8° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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