Delaware, United States: Weather Records

20,496 weather records still stand at 14 stations in Delaware, United States, with standing records by year and every station.

Key Facts for Delaware

Delaware in United States has 14 stations in the data, and 20,496 records set at them still stand.
87 of the 134 recent records listed are record highs and 25 are record lows, counting maximum and minimum temperature.
1959 holds the most standing records in Delaware: 317.
Dover set a monthly record high minimum temperature of 23.9 C (75.0 F) on 20 May 2026.

Record Map

134 stations records

The highest significance station records in Delaware, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records in Delaware: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dover	United States	Record high minimum temperature	23.9 C (75.0 F)	52 of 100 (Notable)
Dover	United States	Record high minimum temperature	16.7 C (62.1 F)	52 of 100 (Notable)
Dover	United States	Record high maximum temperature	28.9 C (84.0 F)	47 of 100 (Notable)
Newark Ag Farm	United States	Record high minimum temperature	25.0 C (77.0 F)	45 of 100 (Notable)
Dover	United States	Record low maximum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Newark Ag Farm	United States	Record daily precipitation	31.2 mm (1.2 in)	44 of 100 (Notable)
Newark Ag Farm	United States	Record daily precipitation	51.6 mm (2.0 in)	44 of 100 (Notable)
Newark Ag Farm	United States	Record low maximum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Dover	United States	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Dover	United States	Record high maximum temperature	36.1 C (97.0 F)	41 of 100 (Notable)
Dover	United States	Record high maximum temperature	33.9 C (93.0 F)	41 of 100 (Notable)
Newark Ag Farm	United States	Record high minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Dover	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Newark Ag Farm	United States	Record low maximum temperature	-6.7 C (19.9 F)	41 of 100 (Notable)
Newark Ag Farm	United States	Record low maximum temperature	-7.8 C (18.0 F)	41 of 100 (Notable)
Wilmington New Castle Co AP	United States	Record high maximum temperature	32.8 C (91.0 F)	38 of 100 (Notable)
Newark Ag Farm	United States	Record high maximum temperature	31.1 C (88.0 F)	36 of 100 (Notable)
Wilmington Porter Rsch	United States	Record low maximum temperature	-9.4 C (15.1 F)	36 of 100 (Notable)
Wilmington Porter Rsch	United States	Record high maximum temperature	30.0 C (86.0 F)	35 of 100 (Notable)
Wilmington Porter Rsch	United States	Record low maximum temperature	-8.3 C (17.1 F)	35 of 100 (Notable)
Lewes	United States	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record high minimum temperature	10.6 C (51.1 F)	33 of 100 (Routine)
Lewes	United States	Record low maximum temperature	-6.7 C (19.9 F)	33 of 100 (Routine)
Dover	United States	Record high maximum temperature	36.1 C (97.0 F)	32 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record high maximum temperature	27.8 C (82.0 F)	32 of 100 (Routine)
Newark Ag Farm	United States	Record high maximum temperature	26.7 C (80.1 F)	32 of 100 (Routine)
Lewes	United States	Record low maximum temperature	-5.0 C (23.0 F)	32 of 100 (Routine)
Lewes	United States	Record daily precipitation	35.1 mm (1.4 in)	32 of 100 (Routine)
Newark Ag Farm	United States	Record low maximum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Newark Ag Farm	United States	Record high maximum temperature	27.2 C (81.0 F)	31 of 100 (Routine)
Wilmington Porter Rsch	United States	Record high maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Newark Ag Farm	United States	Record low maximum temperature	-7.8 C (18.0 F)	31 of 100 (Routine)
Lewes	United States	Record low maximum temperature	-5.0 C (23.0 F)	31 of 100 (Routine)
Newark Ag Farm	United States	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Wilmington Porter Rsch	United States	Record low maximum temperature	-4.4 C (24.1 F)	31 of 100 (Routine)
Lewes	United States	Record high maximum temperature	33.9 C (93.0 F)	30 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record low minimum temperature	-1.1 C (30.0 F)	30 of 100 (Routine)
Lewes	United States	Record high maximum temperature	28.3 C (82.9 F)	30 of 100 (Routine)
Lewes	United States	Record low minimum temperature	-12.2 C (10.0 F)	30 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record high maximum temperature	36.1 C (97.0 F)	29 of 100 (Routine)
Wilmington Porter Rsch	United States	Record high maximum temperature	33.9 C (93.0 F)	29 of 100 (Routine)
Lewes	United States	Record low maximum temperature	-1.7 C (28.9 F)	29 of 100 (Routine)
Lewes	United States	Record high maximum temperature	31.7 C (89.1 F)	28 of 100 (Routine)
Lewes	United States	Record high maximum temperature	37.2 C (99.0 F)	27 of 100 (Routine)
Newark Ag Farm	United States	Record low maximum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Dover	United States	Record daily snowfall	5.3 cm (2.1 in)	27 of 100 (Routine)
Lewes	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record daily precipitation	30.5 mm (1.2 in)	27 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record daily precipitation	55.1 mm (2.2 in)	26 of 100 (Routine)
Lewes	United States	Record high minimum temperature	18.9 C (66.0 F)	26 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record high maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Dover	United States	Record high minimum temperature	26.1 C (79.0 F)	25 of 100 (Routine)
Newark Ag Farm	United States	Record high minimum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Lewes	United States	Record high minimum temperature	17.2 C (63.0 F)	25 of 100 (Routine)
Lewes	United States	Record high minimum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Wilmington Porter Rsch	United States	Record high minimum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Lewes	United States	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Lewes	United States	Record high maximum temperature	32.2 C (90.0 F)	23 of 100 (Routine)
Wilmington New Castle Co AP	United States	Record high maximum temperature	32.2 C (90.0 F)	23 of 100 (Routine)
Lewes	United States	Record high maximum temperature	29.4 C (84.9 F)	23 of 100 (Routine)

Which Years Hold Standing Records

20,496 standing records

20,496 records at stations in Delaware still stand. 1959 holds the most, with 317.

Standing records in Delaware by the year they were set
Year set	Standing records
1893	73
1894	143
1895	261
1896	315
1897	38
1898	109
1899	100
1900	144
1901	98
1902	46
1903	85
1904	103
1905	70
1906	90
1907	107
1908	92
1909	103
1910	91
1911	94
1912	89
1913	85
1914	153
1915	97
1916	88
1917	207
1918	227
1919	168
1920	169
1921	178
1922	122
1923	164
1924	146
1925	223
1926	183
1927	203
1928	185
1929	251
1930	237
1931	173
1932	166
1933	156
1934	174
1935	122
1936	131
1937	110
1938	89
1939	99
1940	189
1941	149
1942	153
1943	122
1944	66
1945	210
1946	177
1947	207
1948	202
1949	206
1950	294
1951	233
1952	211
1953	278
1954	286
1955	220
1956	314
1957	287
1958	197
1959	317
1960	277
1961	226
1962	234
1963	228
1964	304
1965	258
1966	234
1967	299
1968	151
1969	102
1970	238
1971	150
1972	180
1973	162
1974	203
1975	138
1976	220
1977	167
1978	130
1979	264
1980	97
1981	86
1982	182
1983	184
1984	223
1985	143
1986	141
1987	108
1988	183
1989	161
1990	181
1991	157
1992	61
1993	74
1994	63
1995	83
1996	105
1997	84
1998	147
1999	116
2000	170
2001	156
2002	182
2003	102
2004	81
2005	94
2006	96
2007	109
2008	96
2009	87
2010	113
2011	87
2012	78
2013	76
2014	86
2015	153
2016	98
2017	104
2018	121
2019	74
2020	80
2021	86
2022	97
2023	69
2024	59
2025	133
2026	190

Record Highs and Lows in 2026

Each square is a day of 2026. Warm squares had more record highs than record lows at stations in Delaware, cold squares more lows.

Counts the records listed in the day ledgers; a busy day may list only its highest significance records.

Record highs and lows per day in Delaware in 2026
Date	Value
2026-01-24	2 more record lows than highs
2026-01-26	1 more record lows than highs
2026-01-29	1 more record lows than highs
2026-01-30	3 more record lows than highs
2026-01-31	2 more record lows than highs
2026-02-08	2 more record lows than highs
2026-03-10	4 more record highs than lows
2026-03-11	8 more record highs than lows
2026-03-12	2 more record highs than lows
2026-03-31	3 more record highs than lows
2026-04-01	4 more record highs than lows
2026-04-02	1 more record highs than lows
2026-04-04	3 more record highs than lows
2026-04-05	1 more record highs than lows
2026-04-14	2 more record highs than lows
2026-04-15	5 more record highs than lows
2026-04-16	8 more record highs than lows
2026-04-17	5 more record highs than lows
2026-04-21	2 more record lows than highs
2026-05-18	2 more record highs than lows
2026-05-19	3 more record highs than lows
2026-05-20	4 more record highs than lows
2026-05-21	1 more record highs than lows
2026-05-23	3 more record lows than highs
2026-05-24	1 more record lows than highs
2026-06-04	1 more record highs than lows
2026-06-05	2 more record highs than lows
2026-06-06	1 more record highs than lows
2026-06-11	1 more record highs than lows
2026-06-12	1 more record highs than lows
2026-07-02	4 more record highs than lows
2026-07-03	7 more record highs than lows
2026-07-04	5 more record highs than lows
2026-07-05	1 more record highs than lows
2026-07-07	1 more record lows than highs
2026-07-16	1 more record highs than lows
2026-07-20	1 more record lows than highs
2026-08-06	3 more record highs than lows
2026-08-07	1 more record highs than lows
2026-09-14	1 more record highs than lows

Top Records by Significance

Top records in Delaware by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 May 2026	Dover, US	monthly high min	23.9 C (75.0 F)	1.1 C (2.0 F)	130 years	52 of 100 (Notable)
12 March 2026	Dover, US	daily high min	16.7 C (62.1 F)	6.1 C (11.0 F)	127 years	52 of 100 (Notable)
11 March 2026	Dover, US	daily high max	28.9 C (84.0 F)	5.0 C (9.0 F)	103 years	47 of 100 (Notable)
3 July 2026	Newark Ag Farm, US	daily high min	25.0 C (77.0 F)	1.7 C (3.1 F)	127 years	45 of 100 (Notable)
24 May 2026	Dover, US	daily low max	13.9 C (57.0 F)	2.2 C (4.0 F)	104 years	44 of 100 (Notable)
29 April 2026	Newark Ag Farm, US	daily rain	31.2 mm (1.2 in)	4.8 mm (0.19 in)	124 years	44 of 100 (Notable)
30 October 2025	Newark Ag Farm, US	daily rain	51.6 mm (2.0 in)	18.8 mm (0.7 in)	70 years	44 of 100 (Notable)
7 July 2026	Newark Ag Farm, US	daily low max	23.9 C (75.0 F)	1.1 C (2.0 F)	120 years	43 of 100 (Notable)
14 September 2026	Dover, US	daily high min (Provisional)	23.3 C (73.9 F)	0.5 C (0.9 F)	111 years	41 of 100 (Notable)
21 May 2026	Dover, US	daily high max	36.1 C (97.0 F)	2.2 C (4.0 F)	92 years	41 of 100 (Notable)

Stations

Stations in Delaware
Station	Record from	Years	Thresholds
Bridgeville 1 NW	1893	93 years	Threshold days
Delaware Cy Reedy Poin	1902	53 years	Threshold days
Dover	1893	134 years	Threshold days
Georgetown 5 SW	1946	52 years	Threshold days
Lewes	1945	82 years	Threshold days
Middletown 3 E	1952	37 years	Threshold days
Milford 2 SE	1893	112 years	Threshold days
Millsboro	1893	62 years	Threshold days
Newark Ag Farm	1894	133 years	Threshold days
Wilmington City Hall	1894	65 years	Threshold days
Wilmington Porter Rsch	1931	96 years	Threshold days
Dover AFB	1946	81 years	Threshold days
Georgetown-Delaware Coastal AP	1945	82 years	Threshold days
Wilmington New Castle Co AP	1931	96 years	Threshold days

Download the Data

Data for Delaware standing records by year: CSV or JSON. Field meanings are on the data page.

Sources: Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 14 October 2026 (2026-10-14).