Average August Temperature in Petaluma by Year

This page contains a list of the average monthly high and low temperatures in Petaluma, California for the month of August each year between 1913 and 2023. It is based on NOAA data.

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What Was the Hottest August Ever in Petaluma?

1958 was the warmest August in the history of Petaluma, California. The average daily high temperature was 87.4 °F, and the average low was 53.8 °F.

What Was the Coldest August Ever in Petaluma?

1918 was the coolest August in the history of Petaluma, California. The average daily high temperature was 70.2 °F, and the average low was 48.5 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	2	84.5	56.6
2022	8	83.7	54.9
2021	25	81.9	54.2
2020	6	85.0	54.6
2019	3	85.4	55.1
2018	60	80.3	52.4
2017	18	81.6	55.0
2016	91	77.7	52.5
2015	4	82.9	56.9
2014	20	80.2	56.3
2013	65	78.5	53.9
2012	72	81.3	50.9
2011	84	79.6	51.5
2010	97	77.5	51.8
2009	31	82.5	53.0
2008	19	83.0	53.5
2007	29	82.6	53.1
2006	81	79.9	51.7
2005	45	82.0	52.0
2004	10	83.0	55.5
2003	23	81.8	54.3
2002	43	81.7	52.4
2000	57	80.4	52.5
1999	51	79.6	54.0
1998	14	85.8	51.5
1997	17	81.1	55.7
1996	50	82.5	51.1
1995	40	82.9	51.8
1994	79	81.9	49.8
1993	27	83.0	52.9
1992	49	81.1	52.5
1989	36	82.5	52.4
1988	30	81.9	53.6
1987	34	81.2	54.1
1986	52	82.0	51.4
1985	68	82.5	49.9
1984	16	85.4	51.6
1983	7	85.2	53.6
1982	63	83.6	48.8
1981	41	82.6	51.8
1980	87	78.7	52.0
1979	59	81.0	51.8
1978	37	83.4	51.6
1977	38	80.0	54.8
1976	33	81.2	54.2
1975	44	82.1	51.9
1974	22	82.6	53.7
1973	94	79.2	50.3
1972	21	82.9	53.6
1971	5	86.2	53.5
1970	55	82.5	50.8
1969	11	88.4	49.6
1968	35	80.8	54.3
1966	39	83.5	51.2
1965	13	84.2	53.2
1964	42	83.7	50.4
1963	48	84.0	49.8
1962	28	84.4	51.4
1961	9	84.7	53.9
1960	66	83.3	49.1
1959	32	83.6	51.7
1958	1	87.4	53.8
1957	64	83.5	48.9
1956	73	81.6	50.6
1955	62	85.1	47.4
1954	96	79.1	50.3
1953	74	79.1	53.0
1952	80	80.6	51.0
1951	58	80.1	52.6
1950	15	85.6	51.7
1949	85	79.7	51.5
1948	46	82.2	51.8
1947	67	78.4	54.0
1946	89	78.6	51.8
1945	76	80.3	51.8
1944	53	83.2	50.2
1943	54	81.9	51.5
1942	56	80.2	53.0
1941	69	80.1	52.2
1940	47	81.3	52.5
1939	86	79.8	51.3
1938	77	81.5	50.6
1937	61	85.0	47.6
1936	82	83.5	47.8
1935	93	83.3	46.2
1934	70	81.4	50.7
1933	88	81.4	49.2
1932	90	81.8	48.5
1931	71	82.3	49.8
1930	98	77.9	51.3
1929	12	81.9	55.8
1928	92	80.9	49.2
1926	83	82.1	49.1
1925	103	77.7	48.7
1924	95	80.6	48.8
1923	78	81.4	50.5
1922	100	80.6	47.6
1920	24	82.9	53.1
1919	99	79.2	49.1
1918	105	70.2	48.5
1917	104	75.4	50.8
1916	101	79.2	48.8
1915	75	83.2	48.9
1914	102	78.1	49.3
1913	26	83.5	52.4

Weather Station Details

Years	Station	Coordinates
1893–2024	Petaluma Airport	location