Delaware December Temperature by Year

This page is a list of the average statewide temperature in the month of December in Delaware for each year from 1895–2023. It is a statewide average over the entire territory of the state, based on data from the NOAA.

State:

Month:

What Was the Hottest December in Delaware History?

2015 was the warmest December in Delaware history. Statewide, the average daily high temperature was 59.4 °F, and the average low was 42.2 °F.

What Was the Coldest December in Delaware History?

1989 was the coolest December in Delaware history. Statewide, the average daily high temperature was 34.0 °F, and the average low was 17.2 °F.

Click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	4	53.2	34.8
2022	60	47.2	27.9
2021	4	53.3	34.7
2020	29	48.7	30.8
2019	26	49.1	30.8
2018	18	49.7	33.1
2017	74	44.8	27.5
2016	35	48.1	30.3
2015	1	59.4	42.2
2014	20	48.5	33.6
2013	24	49.5	31.4
2012	3	52.5	35.8
2011	9	53.7	33.1
2010	113	39.1	24.2
2009	65	45.2	29.0
2008	22	50.6	30.9
2007	35	47.1	31.1
2006	7	54.2	33.5
2005	84	44.2	27.1
2004	39	48.7	29.4
2003	58	46.8	28.9
2002	76	44.7	27.3
2001	2	53.8	34.9
2000	115	40.2	22.3
1999	23	49.6	31.4
1998	15	51.6	32.4
1997	43	47.6	30.2
1996	19	49.2	33.3
1995	108	40.6	25.1
1994	15	51.4	32.5
1993	76	44.1	27.9
1992	50	46.3	30.7
1991	21	50.6	31.0
1990	13	52.3	33.0
1989	129	34.0	17.2
1988	70	46.1	26.7
1987	30	48.4	30.9
1986	52	46.4	30.1
1985	98	43.3	24.8
1984	4	53.7	34.2
1983	90	43.6	26.4
1982	12	51.5	34.5
1981	92	42.1	27.1
1980	92	44.0	25.2
1979	38	47.9	30.2
1978	47	49.1	28.6
1977	83	44.5	26.9
1976	112	41.4	22.4
1975	61	46.3	28.5
1974	33	48.6	30.3
1973	39	48.1	29.8
1972	17	49.4	34.1
1971	11	52.3	33.8
1970	70	44.7	28.2
1969	105	40.9	25.7
1968	96	42.8	25.6
1967	63	46.2	28.4
1966	81	44.1	27.4
1965	52	48.1	28.4
1964	39	47.4	30.5
1963	123	37.4	22.0
1962	116	38.6	23.5
1961	92	42.8	26.3
1960	124	39.7	19.0
1959	39	47.8	30.2
1958	127	37.8	19.0
1957	33	48.0	30.8
1956	8	52.7	34.5
1955	119	39.3	22.0
1954	84	44.2	27.1
1953	30	49.2	30.0
1952	65	45.4	28.8
1951	43	48.8	29.1
1950	107	41.9	24.6
1949	43	48.8	29.0
1948	56	47.0	29.0
1947	103	42.7	24.4
1946	35	50.4	28.1
1945	121	37.5	23.2
1944	109	40.8	24.4
1943	97	44.5	23.8
1942	110	40.6	24.2
1941	30	49.1	30.2
1940	26	49.2	30.8
1939	67	45.8	28.2
1938	69	45.2	28.0
1937	92	43.3	26.0
1936	43	47.6	30.2
1935	122	37.0	22.6
1934	90	44.1	25.8
1933	76	45.4	26.5
1932	57	47.6	28.3
1931	13	52.3	33.1
1930	102	41.6	26.0
1929	68	45.9	28.0
1928	80	45.4	26.4
1927	58	46.8	28.7
1926	114	39.4	23.6
1925	87	43.0	27.8
1924	84	45.2	26.1
1923	10	52.6	33.7
1922	72	44.6	27.9
1921	89	44.0	26.1
1920	52	46.1	30.5
1919	116	40.6	21.5
1918	28	47.9	31.8
1917	128	35.5	20.4
1916	101	42.1	25.7
1915	105	41.4	25.1
1914	110	38.6	26.3
1913	49	47.6	29.6
1912	47	48.6	29.0
1911	25	49.1	31.2
1910	126	36.9	20.6
1909	120	39.1	21.9
1908	76	44.7	27.2
1907	55	46.8	29.3
1906	74	44.8	27.4
1905	63	46.4	28.2
1904	125	37.9	20.4
1903	118	39.6	21.9
1902	98	42.6	25.5
1901	98	43.8	24.3
1900	88	44.8	25.7
1899	72	46.0	26.4
1898	81	45.0	26.5
1897	61	46.2	28.6
1896	103	42.8	24.4
1895	50	47.9	29.2