Historical Weather in Santa Rosa, CA
See 55+ years of weather history for any date in Santa Rosa going back to 1970.
Part of California weather history
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Today in Santa Rosa Weather HistorySee records, averages, and 55+ years of data for today's date
→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°
💧 6.6"
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 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) |
Santa Rosa Snow RecordsSee the top 10 snowiest days ever recorded
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