September 9 in Ottawa, through the years

Typical high: 23.4°. Hottest: 30.8° (2001). Coldest night: 12.7° (2018).

YEARHIGHLOWRAIN
2025 24.4° 19.5° 0.3 mm
2024 15.5° 13.3° 7.4 mm
2023 28.3° 15° 0 mm
2022 23.1° 16.8° 1.3 mm
2021 22° 13.4° 0 mm
2020 24.4° 15° 0 mm
2019 23.3° 13.4° 0 mm
2018 18.9° 12.7° 1.6 mm
2017 23.1° 16.3° 0 mm
2016 20.7° 16.7° 2.1 mm
2015 22.7° 16.3° 0 mm
2014 25.7° 18° 0 mm
2013 18.9° 15.1° 4.9 mm
2012 27° 16.5° 0 mm
2011 23.2° 17.1° 0 mm
2010 22.6° 17.6° 0.2 mm
2009 17.7° 14° 2.1 mm
2008 30° 16.2° 0.1 mm
2007 24.3° 18.8° 0.4 mm
2006 26.6° 15.6° 0 mm
2005 24.7° 13.2° 0 mm
2004 16.7° 13.3° 4.2 mm
2003 21.2° 16.8° 1 mm
2002 24.3° 17.5° 0.4 mm
2001 30.8° 15.8° 0 mm
2000 30.5° 14.7° 0 mm
1999 29° 17.1° 0 mm
1998 20.9° 16.3° 2.2 mm
1997 17.2° 15.3° 16.4 mm
1996 24.3° 15.1° 0.1 mm
Source: ERA5 reanalysis (Copernicus C3S)

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