August 21 in Llanuwchllyn, through the years

Typical high: 17°. Hottest: 19.8° (2005). Coldest night: 6.6° (1999).

YEARHIGHLOWRAIN
2025 18.1° 8.9° 0 mm
2024 15.3° 10.8° 1.2 mm
2023 19° 13.3° 2.7 mm
2022 17.9° 12.7° 1.2 mm
2021 17.1° 14.1° 12.3 mm
2020 16.4° 13.8° 13.6 mm
2019 16.6° 12.1° 2.7 mm
2018 19° 14.6° 0.2 mm
2017 17.2° 12.8° 2 mm
2016 15.8° 13.4° 14.4 mm
2015 19.1° 14.7° 4.1 mm
2014 13.4° 8.2° 5.8 mm
2013 17.8° 13.2° 1.1 mm
2012 17.1° 13.3° 3.7 mm
2011 16.4° 10.9° 0.2 mm
2010 16.3° 13° 7 mm
2009 14.9° 10.6° 6.1 mm
2008 16.7° 12.2° 5.9 mm
2007 17° 10° 0 mm
2006 16.1° 10.2° 1.1 mm
2005 19.8° 7.4° 0 mm
2004 15.3° 0 mm
2003 17.3° 13.1° 0.3 mm
2002 18.9° 7.3° 0 mm
2001 18.5° 11.7° 0.1 mm
2000 15.4° 3.7 mm
1999 16.3° 6.6° 0 mm
1998 15.3° 11.8° 2.1 mm
1997 18.1° 15.8° 6.6 mm
1996 17.6° 12.4° 1.7 mm
Source: ERA5 reanalysis (Copernicus C3S)

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