September 8 in Rockville, through the years

Typical high: 19°. Hottest: 26.2° (2002). Coldest night: 9.2° (2025).

YEARHIGHLOWRAIN
2025 15.4° 9.2° 0 mm
2024 16.7° 10.4° 0 mm
2023 16.5° 11° 0 mm
2022 22.9° 15.6° 0 mm
2021 17.6° 15.4° 4.1 mm
2020 13.3° 10.4° 0.9 mm
2019 14.4° 10.5° 0 mm
2018 15.9° 11.1° 0 mm
2017 15.4° 9.7° 0.9 mm
2016 22.5° 19.1° 8.4 mm
2015 22.4° 18.5° 7.9 mm
2014 20.1° 14.6° 0 mm
2013 17.4° 13.6° 0 mm
2012 16.7° 14.2° 5.4 mm
2011 21.4° 15.2° 0 mm
2010 15.5° 13.8° 3.2 mm
2009 24° 18.6° 0 mm
2008 17.1° 14.1° 2.9 mm
2007 19.2° 12.2° 0 mm
2006 21° 10.7° 9.5 mm
2005 21.1° 15.5° 0.4 mm
2004 19.8° 14.2° 0 mm
2003 18.9° 15.5° 0 mm
2002 26.2° 19.8° 0 mm
2001 22.5° 19.9° 7.9 mm
2000 18.4° 15° 2.3 mm
1999 23.2° 18.6° 0 mm
1998 16.3° 11.5° 1.1 mm
1997 15.6° 13.1° 0 mm
1996 22° 17.2° 9.6 mm
Source: ERA5 reanalysis (Copernicus C3S)

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