September 4 in Heppner, through the years

Typical high: 28.5°. Hottest: 36.9° (1998). Coldest night: 6.2° (2011).

YEARHIGHLOWRAIN
2025 27.3° 9.1° 0.1 mm
2024 24° 14.8° 0.4 mm
2023 31.9° 15.5° 1.4 mm
2022 36.5° 16.7° 0 mm
2021 24.4° 9.5° 0.2 mm
2020 30.8° 10.7° 0 mm
2019 33.4° 14.9° 0 mm
2018 21.7° 14.1° 0 mm
2017 23.5° 10.8° 0 mm
2016 25.1° 14° 7.2 mm
2015 31.8° 14.1° 0 mm
2014 23.4° 11.8° 0 mm
2013 33° 17.3° 0 mm
2012 34.3° 12.7° 0 mm
2011 21.8° 6.2° 0 mm
2010 31.2° 7.8° 0 mm
2009 28.2° 10.7° 0 mm
2008 18.8° 6.8° 1.9 mm
2007 34.3° 15.2° 0 mm
2006 22.2° 6.5° 0 mm
2005 32.7° 17.4° 0.2 mm
2004 17.5° 13.1° 2.5 mm
2003 31.3° 10.5° 0 mm
2002 33.8° 20° 0 mm
2001 36.6° 18.2° 0 mm
2000 31.8° 14.5° 0 mm
1999 16° 7.9° 5.8 mm
1998 36.9° 17.3° 0 mm
1997 28.7° 18.6° 0.6 mm
1996 31.8° 14.4° 0 mm
Source: ERA5 reanalysis (Copernicus C3S)

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