August 25 in Markham, through the years

Typical high: 29.3°. Hottest: 37.5° (2023). Coldest night: 11.2° (2025).

YEARHIGHLOWRAIN
2025 22.7° 11.2° 0 mm
2024 33.4° 22.1° 0 mm
2023 37.5° 25.1° 5.9 mm
2022 29.2° 19.2° 2.7 mm
2021 33.4° 23.5° 0 mm
2020 32.7° 21.3° 0 mm
2019 23.5° 15.5° 7.6 mm
2018 33.7° 21.7° 2.8 mm
2017 25.7° 14.3° 0 mm
2016 29.6° 21.7° 11.3 mm
2015 26.8° 12.4° 0 mm
2014 34.2° 24.7° 0 mm
2013 32° 18.2° 0 mm
2012 34.4° 20.2° 0 mm
2011 29.7° 15.7° 0 mm
2010 26.2° 15.1° 0 mm
2009 28° 15.6° 0 mm
2008 25.6° 14.2° 0 mm
2007 28.2° 19.9° 5 mm
2006 29° 20.8° 2 mm
2005 26.6° 20.6° 17 mm
2004 27° 20.3° 6 mm
2003 34.6° 21.3° 0 mm
2002 28° 19.1° 0.1 mm
2001 28.7° 21.9° 4.1 mm
2000 30.3° 19.5° 0 mm
1999 25.5° 17.5° 0.4 mm
1998 29.3° 21.3° 0 mm
1997 25.7° 19.3° 3.2 mm
1996 27.7° 16° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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