September 5 in Santa Rosa, through the years

Typical high: 27.2°. Hottest: 30.1° (2023). Coldest night: 15.3° (2021).

YEAR	HIGH	LOW	RAIN
2025	27.6°	16.1°	3.8 mm
2024	28.4°	16.8°	2.8 mm
2023	30.1°	15.7°	0 mm
2022	24.8°	16.6°	7.9 mm
2021	26.4°	15.3°	14.9 mm
2020	25.9°	16.4°	12.6 mm

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