Average Temperature in Wilmington by Year

This page contains a list of the average yearly high and low temperatures in Wilmington, Delaware for each year between 1895 and 2023. It is based on NOAA data.

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What Was the Hottest Year Ever in Wilmington?

2023 was the warmest year in the history of Wilmington, Delaware. The average daily high temperature was 67.8 °F, and the average low was 47.9 °F.

What Was the Coldest Year Ever in Wilmington?

1940 was the coolest year in the history of Wilmington, Delaware. The average daily high temperature was 61.0 °F, and the average low was 41.8 °F.

* click column headers to sort

Year	Rank	High (°F)	Low (°F)
2023	1	67.8	47.9
2022	12	66.4	46.7
2021	5	66.5	47.7
2020	4	66.4	47.8
2019	11	66.1	47.3
2018	19	64.7	47.2
2017	9	66.1	47.5
2016	10	66.4	47.1
2015	20	65.3	46.6
2014	73	63.2	44.6
2013	33	64.3	46.1
2012	2	67.0	48.1
2011	13	65.6	47.1
2010	16	65.4	46.9
2009	57	63.1	45.8
2008	26	65.3	46.1
2007	21	65.2	46.5
2006	14	65.7	47.0
2005	46	63.9	45.5
2004	59	62.9	45.7
2003	94	61.7	44.9
2002	25	65.2	46.3
2001	31	64.8	45.7
2000	81	62.7	44.8
1999	27	65.0	46.2
1998	7	66.1	47.7
1997	85	63.1	44.2
1996	96	61.8	44.6
1995	50	64.1	45.3
1994	40	64.5	45.3
1993	29	64.8	46.1
1992	61	63.4	45.3
1991	8	66.5	47.2
1990	6	66.7	47.3
1989	72	62.8	45.1
1988	71	63.6	44.4
1987	43	64.1	45.5
1986	55	63.8	45.3
1985	23	65.5	46.1
1984	79	63.4	44.3
1983	32	65.2	45.3
1982	70	63.8	44.2
1981	86	63.3	44.0
1980	63	64.0	44.5
1979	83	63.0	44.4
1978	105	61.6	42.7
1977	84	62.9	44.4
1976	88	63.1	43.8
1975	30	64.3	46.3
1974	37	64.6	45.6
1973	3	66.2	48.3
1972	53	63.6	45.5
1971	36	64.1	46.1
1970	47	63.8	45.7
1969	66	62.9	45.4
1968	58	63.9	44.9
1967	103	61.6	43.2
1966	98	62.9	43.5
1965	89	63.1	43.7
1964	74	63.9	43.9
1963	100	62.7	42.5
1962	102	62.1	43.1
1961	90	62.7	44.1
1960	99	62.6	43.8
1959	34	64.8	45.5
1958	106	60.9	43.2
1957	52	64.1	45.2
1956	82	63.1	44.4
1955	48	64.4	45.0
1954	42	64.8	44.8
1953	17	66.1	46.0
1952	39	64.8	45.3
1951	64	64.4	44.0
1950	97	63.1	43.2
1949	22	65.8	46.0
1948	91	63.0	43.6
1947	93	62.5	44.1
1946	49	64.7	44.7
1945	76	64.0	43.7
1944	68	64.7	43.5
1943	78	64.7	43.0
1942	65	64.2	44.2
1941	45	65.4	44.1
1940	109	61.0	41.8
1939	54	64.7	44.4
1938	35	65.2	45.0
1937	60	63.8	44.8
1936	75	63.5	44.3
1935	95	62.3	44.1
1934	92	63.0	43.6
1933	44	64.1	45.3
1932	38	64.8	45.4
1931	24	64.9	46.6
1930	41	64.9	44.8
1929	69	63.9	44.3
1928	80	63.0	44.6
1927	87	62.6	44.5
1926	107	61.2	42.6
1925	62	64.2	44.4
1924	104	61.8	42.9
1923	67	63.9	44.4
1922	51	63.8	45.5
1921	18	65.4	46.6
1920	101	61.4	43.8
1919	56	63.8	45.2
1918	77	63.6	44.1
1917	108	60.8	42.2
1896	15	65.7	46.9
1895	28	65.7	45.4

Weather Station Details

Years	Station	Coordinates
1948–2024	New Castle Airport	location
1932–1947	Wilmington Porter Research	location
1894–1931	Wilmington City Hall	location