September 7 in Santa Rosa, through the years

Typical high: 29.4°. Hottest: 32.7° (2025). Coldest night: 17.9° (2022).

YEARHIGHLOWRAIN
2025 32.7° 20.6° 2.8 mm
2024 31.9° 20.9° 4.8 mm
2023 30.5° 19° 2.4 mm
2022 31.4° 17.9° 0.2 mm
2021 27.8° 18.5° 3.7 mm
2020 28.4° 18.5° 4.9 mm
2019 29.1° 19.2° 11.1 mm
2018 30.9° 18.5° 0 mm
2017 29.3° 19.2° 20.4 mm
2016 30.5° 18.1° 3.4 mm
2015 30.1° 20.2° 3 mm
2014 30.2° 18.4° 2.2 mm
2013 25.3° 19.4° 42.5 mm
2012 31.7° 20.2° 2.9 mm
2011 29.7° 18.4° 1 mm
2010 25.2° 18.8° 19.4 mm
2009 30.3° 19.2° 2.7 mm
2008 24.1° 19.2° 23.6 mm
Source: ERA5 reanalysis (Copernicus C3S)

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