September 3 in Pen-y-fan, through the years

Typical high: 17.9°. Hottest: 22.2° (2023). Coldest night: 10.7° (2012).

YEARHIGHLOWRAIN
2025 17.4° 14.8° 15.3 mm
2024 17.8° 14.4° 1.2 mm
2023 22.2° 13.1° 0 mm
2022 18.3° 15.4° 3.9 mm
2021 18.1° 13.5° 0 mm
2020 17° 14.6° 3.8 mm
2019 16.8° 13.9° 5.9 mm
2018 17.4° 13.2° 3.1 mm
2017 16.2° 13.1° 23.1 mm
2016 17.7° 14° 31.3 mm
2015 13.6° 11.1° 0 mm
2014 19.7° 14.2° 0 mm
2013 19.3° 14.5° 0.3 mm
2012 18.3° 10.7° 0 mm
2011 16.6° 14.6° 8.6 mm
2010 19° 12.1° 0 mm
2009 14.4° 12.3° 0.5 mm
2008 14.4° 11.3° 11.5 mm
2007 16.5° 11.7° 0 mm
2006 19.2° 14.4° 5.1 mm
2005 22.2° 13.6° 0 mm
2004 17.2° 14.2° 0 mm
2003 18.4° 13.3° 0 mm
2002 19.4° 13.2° 0 mm
2001 16.6° 13.2° 1 mm
2000 17.3° 11.7° 0 mm
1999 21° 14.1° 0 mm
1998 18.4° 13.2° 0 mm
1997 16.8° 13° 27.1 mm
1996 19.8° 16° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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