Santa Rosa climate

Typical historical weather for Santa Rosa, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Santa Rosa.

Annual average

15.2°C

across all months

Warmest month

33.8°C

Jul average high

Coolest month

-2.3°C

Jan average low

Annual rainfall

354mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

41.8°C

11 July 2020

Coldest day

-25.3°C

7 January 2017

Wettest day

52.7mm

19 October 2024

Windiest day

14.5m/s

14 March 2025