September 9 in Alliston, through the years

Typical high: 19.2°. Hottest: 23.4° (2001). Coldest night: 12.6° (2013).

YEARHIGHLOWRAIN
2025 18.6° 16.9° 0 mm
2024 18.4° 15.6° 0 mm
2023 23° 19.9° 0 mm
2022 19.4° 17.2° 0.4 mm
2021 20.8° 17.6° 12.2 mm
2020 21.5° 18° 0 mm
2019 17.3° 14.6° 0 mm
2018 16.2° 14.4° 0 mm
2017 18° 16° 0.1 mm
2016 21.7° 20° 3.8 mm
2015 20.3° 16.4° 0 mm
2014 17.5° 13.6° 0 mm
2013 16° 12.6° 0.9 mm
2012 22.9° 18.3° 4.3 mm
2011 18.5° 15.6° 0 mm
2010 20.3° 17.3° 6.7 mm
2009 15.5° 12.8° 0 mm
2008 20.7° 15.9° 1.2 mm
2007 19.6° 14.8° 0.1 mm
2006 20° 15.1° 0 mm
2005 19.4° 16.6° 0.7 mm
2004 19° 15.1° 17.6 mm
2003 14.1° 12.7° 0.2 mm
2002 18.5° 16.4° 4.1 mm
2001 23.4° 19.7° 0 mm
2000 17.8° 16.3° 0 mm
1999 22.7° 20.7° 1.1 mm
1998 18.7° 16.6° 1.5 mm
1997 17.6° 16.5° 0.7 mm
1996 19.4° 14.3° 0.8 mm
Source: ERA5 reanalysis (Copernicus C3S)

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