Average December 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 December each year between 1904 and 2023. It is based on NOAA data.

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What Was the Hottest December Ever in Vacaville?

2014 was the warmest December in the history of Vacaville, California. The average daily high temperature was 59.3 °F, and the average low was 46.6 °F.

What Was the Coldest December Ever in Vacaville?

1963 was the coolest December in the history of Vacaville, California. The average daily high temperature was 46.4 °F, and the average low was 32.6 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	7	62.5	39.1
2022	74	54.6	37.1
2021	68	53.5	38.8
2020	30	61.2	35.6
2019	11	58.2	41.7
2018	24	59.4	38.2
2017	33	63.1	33.3
2016	55	57.6	35.8
2015	45	57.5	37.5
2014	1	59.3	46.6
2013	95	60.1	28.8
2012	60	55.7	37.2
2011	77	59.8	31.6
2010	12	56.4	43.3
2009	53	54.4	39.2
2008	64	55.2	37.6
2007	52	56.1	37.5
2006	40	57.6	37.5
2005	8	58.4	41.9
2004	47	55.1	39.6
2003	37	55.5	40.3
2002	17	57.6	40.8
2001	27	54.6	42.7
2000	41	58.1	37.0
1999	26	62.1	35.4
1998	90	55.6	33.9
1997	38	55.8	39.5
1996	6	58.5	43.2
1995	5	59.3	42.6
1994	102	51.7	35.8
1993	86	54.7	35.4
1992	101	52.7	35.0
1991	61	57.1	35.9
1990	105	54.2	31.6
1988	62	56.7	36.2
1987	56	54.1	39.2
1986	69	55.5	36.7
1984	96	53.1	35.7
1983	16	56.4	42.6
1982	63	54.7	38.1
1981	28	56.1	40.9
1980	50	57.1	37.5
1979	44	59.2	35.9
1978	107	51.8	33.0
1977	10	57.6	42.5
1976	58	61.6	31.5
1975	71	58.1	33.9
1974	72	54.9	37.0
1973	48	53.9	40.8
1972	109	49.5	34.4
1971	111	49.7	33.6
1970	76	53.2	38.2
1969	22	58.1	39.7
1968	104	52.3	34.2
1967	89	56.5	33.1
1966	65	52.5	40.1
1965	110	50.0	33.4
1964	4	58.7	43.6
1963	114	46.4	32.6
1962	82	54.3	36.7
1961	93	52.4	36.8
1960	85	53.6	37.0
1959	43	60.1	34.9
1958	3	63.6	38.9
1957	88	53.0	36.9
1956	98	59.0	29.5
1955	29	55.3	41.7
1954	106	49.9	35.3
1953	20	61.8	36.4
1952	83	51.8	39.0
1951	92	52.3	37.0
1950	9	56.0	44.1
1949	94	54.4	34.8
1948	112	50.9	32.4
1947	103	54.5	32.3
1946	80	52.2	39.0
1945	66	54.4	38.2
1944	57	57.4	35.8
1943	25	59.7	37.8
1942	54	55.3	38.1
1941	32	56.9	39.7
1940	21	59.9	38.2
1939	31	59.8	36.9
1938	23	58.1	39.7
1937	42	58.2	36.8
1936	73	56.9	34.9
1935	35	60.8	35.5
1934	13	61.0	38.6
1933	87	54.3	35.7
1932	113	53.9	29.2
1931	84	56.4	34.4
1930	100	58.3	29.6
1929	2	63.2	40.6
1928	34	62.5	33.8
1927	51	58.6	35.4
1926	91	53.2	36.2
1925	15	55.8	43.4
1924	108	51.8	32.7
1923	75	58.5	33.1
1922	49	56.3	38.3
1921	18	61.0	37.4
1920	67	55.2	37.2
1919	79	55.5	35.8
1916	97	54.9	33.9
1915	46	56.7	38.1
1912	78	57.5	33.8
1911	36	60.8	35.3
1910	14	60.6	39.0
1909	81	54.7	36.4
1908	99	51.7	36.5
1907	19	58.3	40.0
1906	39	55.6	39.6
1905	59	58.9	34.1
1904	70	55.4	36.7

Weather Station Details

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