What is the highest temperature ever recorded in Santa Rosa, CA?

The record high temperature in Santa Rosa, CA is 117°F, recorded on September 6, 2022.

What is the lowest temperature ever recorded in Santa Rosa, CA?

The record low temperature in Santa Rosa, CA is 14°F, recorded on December 22, 1990.

Historical Weather in Santa Rosa, CA

Name: Santa Rosa, CA Temperature Records
Creator: NOAA

See 55+ years of weather history for any date in Santa Rosa going back to 1970.

Part of California weather history · California temperature records

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Today in Santa Rosa Weather HistorySee records, averages, and 55+ years of data for today's date

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Monthly Climate Averages

Historical temperature and precipitation averages for Santa Rosa, CA, based on 55+ years of weather data.

Warmest MonthAugustAvg High: 83°F / Low: 53°F

Coldest MonthDecemberAvg High: 57°F / Low: 40°F

Jan

58°/ 40°

💧 12.1"

Feb

61°/ 41°

💧 13.5"

Mar

65°/ 43°

💧 10.2"

Apr

69°/ 44°

💧 6.8"

May

74°/ 48°

💧 6.8"

Jun

80°/ 51°

💧 4.0"

Jul

82°/ 52°

💧 2.3"

Aug

83°/ 53°

💧 2.8"

Sep

82°/ 52°

💧 3.8"

Oct

76°/ 49°

💧 10.3"

Nov

65°/ 43°

💧 11.0"

Dec

57°/ 40°

💧 13.0"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

Santa Rosa, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

Avg high Avg low

Santa Rosa, CA Monthly Precipitation

Average rainfall per month, in inches.

Rain (in)

Santa Rosa, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

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Best Time to Visit Santa Rosa, CA

Most pleasant months in Santa Rosa, CA: July.

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Dec

Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Santa Rosa Temperature Records

Record High: The hottest temperature ever recorded in Santa Rosa, CA is 117°F, set on September 6, 2022.
Record Low: The coldest temperature ever recorded in Santa Rosa, CA is 14°F, set on December 22, 1990.
Data Coverage: Based on 57 years of data from NOAA weather station: SANTA ROSA.

All-Time Record High

117°F

September 6, 2022

All-Time Record Low

14°F

December 22, 1990

Monthly Temperature Records in Santa Rosa

Month	Record High	Record Low
January	84°F(2009)	19°F(2007)
February	88°F(2016)	17°F(1989)
March	91°F(2022)	25°F(2009)
April	99°F(2004)	27°F(1976)
May	105°F(1976)	30°F(2010)
June	113°F(2000)	33°F(1976)
July	116°F(1972)	38°F(2009)
August	109°F(2020)	30°F(2011)
September	117°F(2022)	28°F(2012)
October	108°F(1980)	22°F(1971)
November	91°F(2008)	20°F(1986)
December	81°F(2011)	14°F(1990)