Wilmington Weather in 2021

Historical record of Wilmington, Delaware weather for the year 2021 based on NOAA data.

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2021 Wilmington Weather Extremes
Highest temperature	97 °F	June 30
Lowest temperature	16 °F	January 30
Highest daily low	77 °F	August 19
Lowest daily high	29 °F	February 12
Most daily precipitation	2.3 inches	September 1
Most daily snow	3.0 inches	February 11
Total annual precipitation	38.0 inches	-
Total annual snow	11.6 inches	-

What was the hottest temperature in Wilmington in 2021?

The highest temperature recorded in Wilmington, Delaware in 2021 was 97 °F which happened on June 30.

Highest Temperatures: All-Time By Year

Highest Temperatures in Wilmington in 2021

Rank	Temperature	Date
1	97 °F	Jun 30
2	96 °F	Aug 13
2	96 °F	Aug 12
4	95 °F	Jul 7
5	94 °F	Aug 11
5	94 °F	Jul 16
5	94 °F	Jun 29
5	94 °F	May 23
9	93 °F	Aug 27
9	93 °F	Aug 10
9	93 °F	Jul 12
9	93 °F	Jul 6
9	93 °F	Jun 28

What was the coldest temperature in Wilmington in 2021?

The lowest temperature recorded in Wilmington, Delaware in 2021 was 16 °F which happened on Jan 30.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Wilmington in 2021

Rank	Temperature	Date
1	16 °F	January 30
2	18 °F	February 21
3	19 °F	February 8
3	19 °F	January 29
5	20 °F	January 24
6	21 °F	December 20
6	21 °F	March 8
8	22 °F	January 12
8	22 °F	January 11
10	23 °F	March 7
10	23 °F	February 17
10	23 °F	January 28
10	23 °F	January 23
10	23 °F	January 21
10	23 °F	January 13

January 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	40	25	0.86	0.0
January 2	54	35	0.03	0.0
January 3	40	34	0.31	0.0
January 4	44	36	0.00	0.0
January 5	42	37	0.00	0.0
January 6	42	33	0.00	0.0
January 7	45	28	0.00	0.0
January 8	36	25	0.00	0.0
January 9	45	26	0.00	0.0
January 10	48	26	0.00	0.0
January 11	40	22	0.00	0.0
January 12	44	22	0.00	0.0
January 13	47	23	0.00	0.0
January 14	53	28	0.00	0.0
January 15	55	29	0.22	0.0
January 16	47	36	0.14	0.0
January 17	49	33	0.00	0.0
January 18	45	32	0.00	0.0
January 19	46	30	0.00	0.0
January 20	44	24	0.00	0.0
January 21	46	23	0.00	0.0
January 22	47	33	0.00	0.0
January 23	36	23	0.00	0.0
January 24	36	20	0.00	0.0
January 25	37	31	0.00	0.0
January 26	39	33	0.09	0.0
January 27	43	32	0.00	0.0
January 28	34	23	0.00	0.0
January 29	31	19	0.00	0.0
January 30	37	16	0.00	0.0
January 31	30	26	0.19	2.5

February 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	35	26	0.26	1.2
February 2	37	29	0.07	0.8
February 3	36	29	0.01	0.1
February 4	42	27	0.00	0.0
February 5	50	34	0.04	0.0
February 6	46	28	0.00	0.0
February 7	38	26	0.50	0.2
February 8	31	19	0.00	0.0
February 9	42	25	0.00	0.0
February 10	39	25	0.05	0.7
February 11	32	28	0.18	3.0
February 12	29	24	0.00	0.0
February 13	30	27	0.05	0.0
February 14	36	26	0.00	0.0
February 15	40	33	0.00	0.0
February 16	51	28	0.85	0.0
February 17	35	23	0.00	0.0
February 18	30	24	0.49	1.4
February 19	33	26	0.14	0.1
February 20	33	24	0.00	0.0
February 21	37	18	0.00	0.0
February 22	35	29	0.42	1.3
February 23	52	32	0.00	0.0
February 24	57	29	0.00	0.0
February 25	50	31	0.00	0.0
February 26	47	30	0.12	0.0
February 27	54	33	0.27	0.2
February 28	44	38	1.06	0.0

March 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	49	35	0.13
March 2	40	26	0.00
March 3	56	26	0.00
March 4	50	31	0.00
March 5	41	25	0.00
March 6	41	28	0.00
March 7	44	23	0.00
March 8	48	21	0.00
March 9	69	33	0.00
March 10	62	40	0.00
March 11	74	40	0.00
March 12	72	53	0.00
March 13	54	37	0.00
March 14	60	35	0.00
March 15	44	25	0.00
March 16	41	34	0.02
March 17	48	38	0.00
March 18	50	44	1.05
March 19	49	33	0.01
March 20	57	28	0.00
March 21	64	27	0.00
March 22	65	30	0.00
March 23	67	39	0.00
March 24	58	50	1.78
March 25	61	52	0.01
March 26	84	52	0.00
March 27	69	46	0.00
March 28	70	49	0.80
March 29	56	39	0.00
March 30	64	33	0.00
March 31	66	46	1.00

April 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	58	33	0.08
April 2	45	29	0.01
April 3	54	26	0.00
April 4	69	44	0.00
April 5	70	42	0.00
April 6	71	47	0.00
April 7	71	49	0.01
April 8	65	46	0.00
April 9	59	48	0.18
April 10	71	51	0.27
April 11	73	50	1.01
April 12	52	48	0.09
April 13	67	46	0.00
April 14	64	45	0.04
April 15	67	44	0.00
April 16	58	39	0.01
April 17	59	42	0.00
April 18	66	40	0.00
April 19	61	42	0.01
April 20	74	44	0.00
April 21	71	36	0.03
April 22	51	34	0.00
April 23	63	35	0.00
April 24	66	41	0.09
April 25	67	49	0.34
April 26	62	41	0.00
April 27	80	43	0.00
April 28	87	56	0.00
April 29	80	64	0.18
April 30	71	47	0.01

May 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	67	44	0.00
May 2	84	54	0.00
May 3	75	61	0.08
May 4	84	64	0.01
May 5	78	55	0.25
May 6	65	47	0.00
May 7	66	42	0.01
May 8	56	42	0.05
May 9	57	40	0.00
May 10	64	49	0.00
May 11	68	45	0.00
May 12	70	43	0.00
May 13	72	44	0.00
May 14	76	46	0.00
May 15	77	44	0.00
May 16	72	44	0.00
May 17	76	46	0.00
May 18	80	49	0.00
May 19	89	55	0.00
May 20	78	56	0.00
May 21	81	50	0.00
May 22	92	61	0.00
May 23	94	72	0.00
May 24	77	58	0.08
May 25	73	58	0.00
May 26	89	64	0.49
May 27	84	65	0.00
May 28	71	52	0.66
May 29	53	49	1.22
May 30	53	47	0.18
May 31	74	48	0.00

June 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	76	52	0.00
June 2	78	57	0.00
June 3	80	63	0.27
June 4	82	68	0.07
June 5	91	63	0.00
June 6	90	68	0.00
June 7	91	71	0.00
June 8	91	71	0.03
June 9	89	70	0.26
June 10	84	68	0.00
June 11	68	62	0.54
June 12	78	63	0.00
June 13	79	64	0.00
June 14	84	66	0.13
June 15	81	64	0.02
June 16	80	58	0.00
June 17	79	52	0.00
June 18	84	55	0.00
June 19	89	70	0.00
June 20	90	64	0.00
June 21	87	70	0.17
June 22	75	54	0.18
June 23	78	49	0.00
June 24	77	53	0.00
June 25	80	53	0.00
June 26	83	70	0.29
June 27	90	73	0.00
June 28	93	73	0.00
June 29	94	73	0.00
June 30	97	74	0.00

July 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	86	69	1.46
July 2	79	63	0.85
July 3	77	60	0.06
July 4	84	60	0.01
July 5	88	63	0.00
July 6	93	71	0.00
July 7	95	75	0.00
July 8	90	71	0.09
July 9	89	70	0.43
July 10	85	66	0.00
July 11	87	69	0.00
July 12	93	73	0.69
July 13	90	74	0.00
July 14	92	77	0.00
July 15	92	73	0.00
July 16	94	75	0.00
July 17	92	72	0.36
July 18	79	71	0.00
July 19	87	69	0.00
July 20	88	69	0.00
July 21	87	66	0.24
July 22	83	61	0.00
July 23	84	61	0.00
July 24	84	61	0.05
July 25	88	72	0.20
July 26	91	70	0.00
July 27	92	67	0.00
July 28	89	68	0.12
July 29	82	70	0.21
July 30	88	67	0.00
July 31	80	60	0.00

August 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	76	62	0.20
August 2	82	58	0.00
August 3	79	59	0.00
August 4	79	61	0.00
August 5	86	58	0.00
August 6	90	67	0.00
August 7	83	67	0.09
August 8	83	68	0.00
August 9	91	67	0.18
August 10	93	72	0.37
August 11	94	72	0.08
August 12	96	72	0.00
August 13	96	74	0.01
August 14	91	73	0.00
August 15	87	71	0.00
August 16	83	72	0.10
August 17	81	74	0.56
August 18	89	75	0.20
August 19	90	77	0.00
August 20	84	73	0.05
August 21	84	70	0.00
August 22	82	73	0.11
August 23	90	71	0.38
August 24	91	71	0.00
August 25	91	68	0.00
August 26	92	73	0.00
August 27	93	74	0.03
August 28	79	70	0.03
August 29	81	68	0.01
August 30	89	73	0.36
August 31	87	70	0.00

September 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	81	65	2.30
September 2	79	59	0.00
September 3	76	54	0.00
September 4	80	55	0.00
September 5	76	63	0.31
September 6	84	63	0.01
September 7	83	59	0.00
September 8	87	67	0.07
September 9	75	62	0.60
September 10	77	58	0.00
September 11	78	55	0.00
September 12	84	62	0.00
September 13	89	70	0.00
September 14	85	69	0.00
September 15	89	70	0.03
September 16	83	69	0.00
September 17	81	69	0.00
September 18	87	67	0.00
September 19	82	60	0.00
September 20	78	56	0.00
September 21	80	61	0.00
September 22	83	69	0.00
September 23	78	61	1.93
September 24	74	51	0.00
September 25	77	50	0.00
September 26	74	58	0.00
September 27	80	54	0.00
September 28	78	60	0.11
September 29	71	54	0.00
September 30	71	50	0.00

October 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	69	46	0.00
October 2	76	48	0.00
October 3	83	56	0.00
October 4	81	69	0.00
October 5	71	64	1.21
October 6	72	63	0.00
October 7	76	60	0.00
October 8	78	58	0.00
October 9	72	63	0.00
October 10	69	64	0.14
October 11	71	61	0.00
October 12	70	63	0.00
October 13	72	61	0.00
October 14	80	57	0.00
October 15	81	57	0.00
October 16	81	54	0.37
October 17	64	48	0.00
October 18	63	44	0.00
October 19	70	43	0.00
October 20	77	50	0.00
October 21	76	50	0.00
October 22	68	49	0.00
October 23	65	47	0.16
October 24	62	44	0.01
October 25	78	60	0.70
October 26	67	49	0.41
October 27	69	50	0.06
October 28	64	46	0.00
October 29	62	53	1.69
October 30	66	54	0.08
October 31	66	50	0.02

November 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	60	42	0.00
November 2	51	38	0.08
November 3	53	34	0.00
November 4	53	31	0.00
November 5	55	31	0.00
November 6	57	28	0.00
November 7	56	31	0.00
November 8	68	36	0.00
November 9	72	41	0.00
November 10	69	44	0.00
November 11	66	41	0.00
November 12	65	39	0.20
November 13	62	36	0.03
November 14	49	31	0.03
November 15	49	36	0.00
November 16	51	29	0.00
November 17	63	31	0.00
November 18	71	39	0.09
November 19	48	31	0.00
November 20	47	27	0.00
November 21	52	31	0.01
November 22	50	31	0.06
November 23	45	27	0.00
November 24	48	24	0.00
November 25	55	30	0.00
November 26	48	37	0.18
November 27	42	34	0.00
November 28	54	36	0.00
November 29	46	28	0.00
November 30	44	28	0.00

December 2021 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	52	29	0.02	0.0
December 2	60	44	0.00	0.0
December 3	56	41	0.00	0.0
December 4	50	32	0.00	0.0
December 5	51	28	0.00	0.0
December 6	66	40	0.02	0.0
December 7	43	31	0.00	0.0
December 8	41	31	0.00	0.0
December 9	42	27	0.00	0.0
December 10	50	36	0.01	0.0
December 11	67	45	0.31	0.0
December 12	50	33	0.00	0.0
December 13	55	27	0.00	0.0
December 14	58	30	0.00	0.0
December 15	56	30	0.00	0.0
December 16	63	43	0.00	0.0
December 17	62	46	0.00	0.0
December 18	50	42	0.12	0.0
December 19	48	29	0.03	0.0
December 20	38	21	0.00	0.0
December 21	42	24	0.01	0.0
December 22	48	30	0.06	0.0
December 23	39	26	0.00	0.0
December 24	52	34	0.00	0.0
December 25	60	42	0.05	0.0
December 26	54	37	0.00	0.0
December 27	39	33	0.16	0.1
December 28	49	35	0.05	0.0
December 29	51	43	0.00	0.0
December 30	51	45	0.26	0.0
December 31	53	46	0.01	0.0

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Weather Station Details

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