September 4 in Ostrołęka, through the years

Typical high: 21.3°. Hottest: 30.2° (2024). Coldest night: 5.7° (2010).

YEARHIGHLOWRAIN
2025 28° 12° 0 mm
2024 30.2° 15.3° 0.5 mm
2023 22.1° 11.1° 0 mm
2022 21° 8.3° 0 mm
2021 17.6° 7.8° 0 mm
2020 19.9° 10.7° 1.6 mm
2019 22.9° 11.8° 0 mm
2018 24.8° 13.8° 0 mm
2017 16.1° 12.3° 4.6 mm
2016 26.8° 13.1° 4.3 mm
2015 16.8° 12.7° 4.5 mm
2014 21.9° 10.2° 0 mm
2013 20° 6.4° 0 mm
2012 22.5° 10.6° 0 mm
2011 24.1° 9.9° 0 mm
2010 15.6° 5.7° 0 mm
2009 18.8° 14.8° 0.7 mm
2008 21.3° 16.2° 1.8 mm
2007 13.4° 8.6° 0.1 mm
2006 20.3° 16.1° 1.8 mm
2005 25.8° 9.2° 0 mm
2004 20.5° 8.6° 0.2 mm
2003 17.1° 10° 2.6 mm
2002 28.2° 15.4° 0 mm
2001 20.7° 14.1° 1.5 mm
2000 16.3° 11.9° 6 mm
1999 23.2° 9.6° 0 mm
1998 18.7° 0 mm
1997 22.9° 14.3° 0.1 mm
1996 20.3° 12.7° 0.6 mm
Source: ERA5 reanalysis (Copernicus C3S)

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