Average August Temperature in Vacaville by Year

This page contains a list of the average monthly high and low temperatures in Vacaville, California for the month of August each year between 1905 and 2023. It is based on NOAA data.

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What Was the Hottest August Ever in Vacaville?

1958 was the warmest August in the history of Vacaville, California. The average daily high temperature was 98.9 °F, and the average low was 61.5 °F.

What Was the Coldest August Ever in Vacaville?

1911 was the coolest August in the history of Vacaville, California. The average daily high temperature was 87.9 °F, and the average low was 51.1 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	8	95.5	61.4
2022	6	97.4	60.7
2021	14	95.8	59.4
2020	2	97.7	62.3
2019	13	95.6	60.0
2018	50	92.7	56.9
2017	4	96.6	62.4
2016	35	93.8	57.1
2015	20	93.8	59.9
2014	51	90.7	58.9
2013	57	91.3	57.8
2012	21	95.3	58.0
2011	60	91.7	56.9
2010	80	90.4	56.4
2009	12	94.1	61.7
2008	9	95.2	61.4
2007	18	94.1	59.7
2006	65	91.1	57.2
2005	15	95.9	59.2
2004	22	93.2	59.7
2003	37	92.0	58.8
2002	67	92.3	55.5
2001	33	93.7	57.7
2000	43	92.4	57.9
1999	61	89.7	58.9
1997	32	93.4	58.1
1996	5	99.4	59.4
1995	19	95.6	58.2
1994	46	96.6	53.6
1993	30	93.8	58.0
1992	7	99.0	58.4
1991	78	91.2	55.7
1990	16	94.5	59.8
1989	59	92.7	56.2
1987	71	92.0	55.6
1986	81	92.5	53.9
1985	103	90.9	52.6
1984	42	94.2	56.4
1983	36	91.6	59.2
1982	69	91.1	56.6
1981	85	92.0	53.8
1980	101	89.5	54.2
1979	79	91.8	55.0
1978	49	93.3	56.4
1977	56	92.5	56.9
1976	109	87.2	55.4
1975	94	91.1	53.6
1974	74	93.5	53.8
1973	91	92.5	52.6
1972	48	94.7	55.5
1971	45	94.8	55.4
1970	84	93.8	52.1
1969	29	98.3	53.6
1968	93	89.7	55.2
1967	11	99.9	56.3
1966	27	96.3	55.8
1965	26	94.2	58.1
1964	44	94.1	56.2
1963	75	92.6	54.5
1962	54	93.3	56.2
1961	10	96.6	59.8
1960	28	96.1	55.8
1959	34	94.5	56.7
1958	1	98.9	61.5
1957	73	94.5	53.0
1956	86	92.3	53.4
1955	55	97.3	52.2
1954	111	89.3	52.1
1953	90	90.9	54.2
1952	53	96.3	53.3
1951	70	93.6	54.1
1950	23	97.2	55.3
1949	104	90.3	53.0
1948	105	92.2	51.2
1947	100	90.4	53.5
1946	83	94.2	52.0
1945	63	93.8	54.6
1944	62	95.9	52.6
1943	98	93.2	51.0
1942	72	94.6	53.0
1941	107	90.3	52.6
1940	82	93.5	52.8
1939	41	97.2	53.4
1938	99	93.7	50.5
1937	31	98.1	53.4
1936	17	98.2	55.9
1935	40	98.1	52.5
1934	47	96.8	53.4
1933	24	98.0	54.5
1932	89	93.8	51.4
1931	25	97.9	54.4
1930	66	95.8	52.1
1929	39	98.1	52.6
1928	76	95.1	51.9
1927	96	92.5	51.9
1926	97	92.5	51.9
1925	112	89.3	52.0
1924	106	92.3	51.0
1923	102	91.6	52.0
1922	110	91.7	50.8
1921	108	92.6	50.2
1920	38	95.7	55.0
1919	77	93.3	53.7
1915	58	96.4	52.5
1914	3	93.7	66.0
1912	87	90.4	54.9
1911	113	87.9	51.1
1910	52	93.9	55.7
1909	88	92.0	53.3
1908	68	92.0	55.8
1907	95	89.2	55.5
1906	64	93.6	54.7
1905	92	91.6	53.4

Weather Station Details

Years	Station	Coordinates
1999–2024	Vacaville Nut Tree Airport	location
1893–1998	Vacaville	location