August 20 in Glaslyn, through the years

Typical high: 21.3°. Hottest: 29.9° (2022). Coldest night: -0.4° (2004).

YEARHIGHLOWRAIN
2025 25.3° 12.5° 5.9 mm
2024 28.1° 14.5° 0 mm
2023 18.7° 1.9° 0 mm
2022 29.9° 14° 0 mm
2021 18.6° 9.2° 0.5 mm
2020 25.2° 13.5° 0.1 mm
2019 20.5° 3.1° 0 mm
2018 20.6° 0 mm
2017 17.2° 6.8° 0 mm
2016 21.8° 9.3° 0.2 mm
2015 20.9° 10.5° 0.6 mm
2014 20° 12.6° 7.6 mm
2013 19.1° 9.6° 0 mm
2012 26.5° 9.7° 0 mm
2011 17.7° 0.1 mm
2010 18.6° 8.3° 0 mm
2009 21° 7.5° 0 mm
2008 22.9° 14.1° 2.4 mm
2007 16.5° 11.2° 22.5 mm
2006 19.7° 8.4° 0 mm
2005 18.6° 4.6° 0 mm
2004 19.8° -0.4° 0 mm
2003 22.2° 11.8° 0 mm
2002 19.1° 5.8° 0 mm
2001 21.4° 1.5 mm
2000 18° 9.5° 2.8 mm
1999 27.3° 14.5° 0.2 mm
1998 22.8° 7.4° 0 mm
1997 21° 9.5° 0 mm
1996 20° 9.8° 0.3 mm
Source: ERA5 reanalysis (Copernicus C3S)

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