Santa Rosa August Weather

Averages and records for weather in Santa Rosa, California in the month of August.
Typical Santa Rosa August Weather
1991–2020
Average daily high 83.5 °F
Average daily low 52.5 °F
Average monthly precipitation 0.0 inches
Daily chance of precipitation 0.86%
Santa Rosa August Weather Records
1902–2024
Highest temperature 107 °F August 24, 2010
Lowest temperature 34 °F August 18, 1915
Highest daily low 65 °F August 2, 1993
Lowest daily high 61 °F August 11, 1918
Hottest average high temperature 91.5 °F 1969
Coldest average high temperature 74.0 °F 1986
Most daily precipitation 1.3 inches August 21, 1968
Most monthly precipitation 1.7 inches 1968
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
August 1 83.0 52.6 103 41
August 2 83.2 52.6 106 42
August 3 83.2 52.6 106 41
August 4 83.2 52.6 103 41
August 5 83.2 52.5 96 40
August 6 83.1 52.5 104 42
August 7 83.0 52.5 99 42
August 8 83.0 52.5 102 43
August 9 83.0 52.5 104 43
August 10 83.0 52.6 103 41
August 11 83.1 52.6 102 41
August 12 83.1 52.6 102 40
August 13 83.3 52.6 102 38
August 14 83.4 52.6 105 40
August 15 83.5 52.5 103 39
August 16 83.5 52.5 104 38
August 17 83.5 52.5 100 40
August 18 83.6 52.5 102 34
August 19 83.7 52.4 105 36
August 20 83.9 52.4 98 38
August 21 83.9 52.4 102 38
August 22 84.0 52.3 99 41
August 23 84.1 52.3 102 41
August 24 84.2 52.2 107 42
August 25 84.1 52.2 101 40
August 26 84.0 52.2 102 41
August 27 83.9 52.1 105 40
August 28 83.8 52.1 105 40
August 29 83.7 52.0 105 40
August 30 83.6 52.0 105 40
August 31 83.3 52.0 101 41
Weather Station Details
Years Station Coordinates
1998–2024 Santa Rosa Sonoma County Airport location
1902–1998 Santa Rosa location