Wilmington Weather in 1978

Historical record of Wilmington, Delaware weather for the year 1978 based on NOAA data.

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1978 Wilmington Weather Extremes
Highest temperature	96 °F	July 23
Lowest temperature	3 °F	February 10
Highest daily low	77 °F	July 23
Lowest daily high	17 °F	January 10
Most daily precipitation	3.9 inches	July 3
Most daily snow	13.8 inches	February 6
Total annual precipitation	51.3 inches	-
Total annual snow	48.8 inches	-

What was the hottest temperature in Wilmington in 1978?

The highest temperature recorded in Wilmington, Delaware in 1978 was 96 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Wilmington in 1978

Rank	Temperature	Date
1	96 °F	Jul 23
1	96 °F	Jul 22
3	92 °F	Jul 27
4	91 °F	Aug 19
4	91 °F	Aug 17
4	91 °F	Jul 21
4	91 °F	Jul 10
4	91 °F	Jun 19
9	90 °F	Aug 29
9	90 °F	Aug 23
9	90 °F	Aug 16

What was the coldest temperature in Wilmington in 1978?

The lowest temperature recorded in Wilmington, Delaware in 1978 was 3 °F which happened on Feb 10.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Wilmington in 1978

Rank	Temperature	Date
1	3 °F	February 10
2	5 °F	February 20
3	6 °F	January 4
4	7 °F	March 5
4	7 °F	February 5
6	8 °F	February 16
6	8 °F	February 11
6	8 °F	February 4
6	8 °F	January 24
10	9 °F	January 10

January 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	32	25	0.08	0.9
January 2	36	25	0.00	0.0
January 3	29	14	0.00	0.0
January 4	32	6	0.00	0.0
January 5	41	20	0.00	0.0
January 6	45	31	0.00	0.0
January 7	40	37	0.00	0.0
January 8	55	40	0.52	0.0
January 9	60	10	0.77	0.8
January 10	17	9	0.00	0.0
January 11	26	16	0.00	0.0
January 12	32	14	0.00	0.0
January 13	34	25	1.72	3.9
January 14	34	22	0.09	0.0
January 15	26	16	0.00	0.0
January 16	28	14	0.00	0.0
January 17	40	22	1.51	2.9
January 18	40	25	0.03	0.0
January 19	28	20	0.27	3.2
January 20	35	27	1.09	4.3
January 21	30	20	0.00	0.0
January 22	29	14	0.00	0.0
January 23	31	10	0.00	0.0
January 24	37	8	0.00	0.0
January 25	45	32	1.97	0.0
January 26	58	23	0.36	0.0
January 27	27	19	0.00	0.0
January 28	24	17	0.00	0.0
January 29	27	16	0.00	0.0
January 30	31	18	0.00	0.0
January 31	27	13	0.00	0.0

February 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	27	12	0.00	0.0
February 2	29	15	0.00	0.0
February 3	30	12	0.00	0.0
February 4	26	8	0.00	0.0
February 5	27	7	0.02	0.3
February 6	23	17	1.36	13.8
February 7	28	17	0.03	0.4
February 8	33	12	0.00	0.0
February 9	33	10	0.00	0.0
February 10	29	3	0.00	0.0
February 11	32	8	0.00	0.0
February 12	34	14	0.00	0.0
February 13	33	11	0.24	2.6
February 14	31	20	0.12	1.3
February 15	30	10	0.00	0.0
February 16	33	8	0.00	0.0
February 17	39	25	0.00	0.0
February 18	34	21	0.00	0.0
February 19	29	12	0.00	0.0
February 20	31	5	0.00	0.0
February 21	33	13	0.00	0.0
February 22	26	12	0.00	0.0
February 23	31	16	0.00	0.0
February 24	36	16	0.00	0.0
February 25	45	27	0.00	0.0
February 26	38	25	0.00	0.0
February 27	31	19	0.00	0.0
February 28	33	13	0.00	0.0

March 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	35	21	0.01	0.2
March 2	29	13	0.00	0.0
March 3	29	22	0.42	5.3
March 4	31	16	0.00	0.0
March 5	26	7	0.00	0.0
March 6	33	12	0.00	0.0
March 7	33	15	0.00	0.0
March 8	30	24	0.14	1.3
March 9	38	24	0.02	0.2
March 10	40	33	0.02	0.0
March 11	49	29	0.00	0.0
March 12	54	34	0.00	0.0
March 13	48	33	0.00	0.0
March 14	58	35	0.48	0.0
March 15	51	33	0.00	0.0
March 16	37	30	0.56	2.9
March 17	39	25	0.00	0.0
March 18	38	24	0.00	0.0
March 19	62	33	0.00	0.0
March 20	49	32	0.00	0.0
March 21	70	39	0.22	0.0
March 22	57	40	0.02	0.0
March 23	67	42	0.00	0.0
March 24	53	38	0.00	0.0
March 25	38	33	0.12	0.0
March 26	48	34	2.62	0.0
March 27	54	41	0.96	0.0
March 28	57	40	0.00	0.0
March 29	62	38	0.00	0.0
March 30	50	30	0.00	0.0
March 31	59	34	0.00	0.0

April 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	81	42	0.00
April 2	65	42	0.00
April 3	42	32	0.11
April 4	58	35	0.10
April 5	62	43	0.00
April 6	50	35	0.10
April 7	69	41	0.07
April 8	61	37	0.00
April 9	55	30	0.00
April 10	58	38	0.00
April 11	66	43	0.06
April 12	71	42	0.00
April 13	75	46	0.00
April 14	60	42	0.00
April 15	58	34	0.00
April 16	54	32	0.00
April 17	57	33	0.00
April 18	61	39	0.18
April 19	55	43	1.13
April 20	60	47	0.40
April 21	56	45	0.00
April 22	60	38	0.00
April 23	63	33	0.00
April 24	66	45	0.00
April 25	63	41	0.00
April 26	54	45	0.00
April 27	51	38	0.01
April 28	70	36	0.00
April 29	74	40	0.00
April 30	64	43	0.00

May 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	55	30	0.00
May 2	66	36	0.00
May 3	67	41	0.00
May 4	56	42	0.71
May 5	47	43	0.11
May 6	52	44	0.02
May 7	67	44	0.00
May 8	57	45	0.46
May 9	77	54	0.98
May 10	67	47	0.00
May 11	70	44	0.00
May 12	73	50	0.00
May 13	69	57	0.44
May 14	69	54	1.87
May 15	56	52	0.28
May 16	55	51	0.26
May 17	65	52	0.42
May 18	73	53	0.11
May 19	78	54	0.00
May 20	86	58	0.00
May 21	83	56	0.00
May 22	75	45	0.00
May 23	75	51	0.13
May 24	63	54	1.15
May 25	79	57	0.00
May 26	81	58	0.00
May 27	71	63	0.00
May 28	75	63	0.00
May 29	77	63	0.00
May 30	82	59	0.00
May 31	85	63	0.00

June 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	85	67	0.00
June 2	86	63	0.00
June 3	79	59	0.15
June 4	74	52	0.00
June 5	82	56	0.32
June 6	76	52	0.00
June 7	77	60	0.17
June 8	83	71	0.55
June 9	83	58	0.02
June 10	81	55	0.00
June 11	82	58	0.00
June 12	81	59	0.00
June 13	72	52	0.28
June 14	70	48	0.00
June 15	73	48	0.00
June 16	77	50	0.00
June 17	68	62	0.09
June 18	85	61	0.00
June 19	91	71	0.00
June 20	83	62	0.00
June 21	83	66	0.50
June 22	83	65	0.00
June 23	82	60	0.00
June 24	79	59	0.00
June 25	83	55	0.00
June 26	78	64	0.00
June 27	88	71	0.78
June 28	89	69	0.00
June 29	89	65	0.14
June 30	87	66	0.00

July 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	78	57	0.00
July 2	67	61	0.05
July 3	67	60	3.89
July 4	65	57	0.01
July 5	80	53	0.00
July 6	83	58	0.00
July 7	83	59	0.00
July 8	87	63	0.00
July 9	89	69	0.00
July 10	91	72	0.00
July 11	78	58	0.00
July 12	80	52	0.00
July 13	81	56	0.00
July 14	75	66	0.03
July 15	82	69	0.00
July 16	77	69	0.03
July 17	82	66	0.20
July 18	87	62	0.00
July 19	87	65	0.00
July 20	84	67	0.00
July 21	91	71	0.00
July 22	96	74	0.00
July 23	96	77	0.00
July 24	87	72	0.00
July 25	76	68	0.29
July 26	81	68	0.00
July 27	92	69	0.24
July 28	86	64	0.08
July 29	82	59	0.00
July 30	82	68	0.06
July 31	82	66	0.65

August 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	78	68	0.12
August 2	78	70	0.00
August 3	88	73	0.07
August 4	83	73	0.30
August 5	83	71	0.66
August 6	84	73	0.12
August 7	89	74	0.02
August 8	88	72	0.00
August 9	87	69	0.34
August 10	83	69	0.02
August 11	86	70	0.14
August 12	83	72	0.01
August 13	85	72	0.00
August 14	88	73	0.06
August 15	87	72	0.00
August 16	90	74	0.00
August 17	91	71	0.00
August 18	86	65	0.00
August 19	91	64	0.00
August 20	83	69	0.00
August 21	82	62	0.00
August 22	85	60	0.00
August 23	90	60	0.00
August 24	89	64	0.00
August 25	77	66	0.00
August 26	81	65	0.00
August 27	83	64	2.18
August 28	86	71	0.57
August 29	90	74	0.00
August 30	83	70	0.13
August 31	84	69	1.23

September 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	78	64	0.59
September 2	81	61	0.00
September 3	83	60	0.00
September 4	79	60	0.00
September 5	83	54	0.00
September 6	86	62	0.00
September 7	89	71	0.12
September 8	75	59	0.00
September 9	78	57	0.00
September 10	74	55	0.00
September 11	84	65	0.00
September 12	85	62	0.57
September 13	70	57	0.01
September 14	70	52	0.00
September 15	76	59	0.02
September 16	84	60	0.00
September 17	78	63	0.00
September 18	86	66	0.39
September 19	75	58	0.43
September 20	76	58	0.00
September 21	81	59	0.00
September 22	79	61	0.05
September 23	70	52	0.00
September 24	70	46	0.00
September 25	76	53	0.00
September 26	65	45	0.00
September 27	68	44	0.00
September 28	72	47	0.00
September 29	66	41	0.00
September 30	71	41	0.00

October 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	74	61	0.32
October 2	71	46	0.00
October 3	68	43	0.00
October 4	62	50	0.07
October 5	66	50	0.00
October 6	72	49	0.26
October 7	63	44	0.00
October 8	58	39	0.00
October 9	61	35	0.00
October 10	70	36	0.00
October 11	71	43	0.00
October 12	76	51	0.00
October 13	82	55	0.00
October 14	71	43	0.02
October 15	57	36	0.00
October 16	60	34	0.59
October 17	58	37	0.05
October 18	60	31	0.00
October 19	59	47	0.00
October 20	61	39	0.00
October 21	69	37	0.00
October 22	76	40	0.00
October 23	81	46	0.00
October 24	56	34	0.00
October 25	65	32	0.00
October 26	70	52	0.02
October 27	64	39	0.15
October 28	64	33	0.00
October 29	63	37	0.00
October 30	61	39	0.00
October 31	64	43	0.00

November 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	64	41	0.00	0.0
November 2	65	35	0.00	0.0
November 3	68	40	0.00	0.0
November 4	54	41	0.02	0.0
November 5	70	45	0.00	0.0
November 6	66	45	0.00	0.0
November 7	63	42	0.00	0.0
November 8	53	42	0.00	0.0
November 9	62	32	0.00	0.0
November 10	65	33	0.00	0.0
November 11	63	44	0.00	0.0
November 12	58	41	0.00	0.0
November 13	50	46	0.00	0.0
November 14	68	49	0.00	0.0
November 15	62	46	0.17	0.0
November 16	48	42	0.14	0.0
November 17	62	46	0.24	0.0
November 18	67	39	0.54	0.0
November 19	54	34	0.00	0.0
November 20	50	32	0.00	0.0
November 21	48	34	0.00	0.0
November 22	41	34	0.00	0.0
November 23	51	35	0.13	0.0
November 24	56	39	0.03	0.0
November 25	45	35	0.00	0.0
November 26	39	27	0.00	0.0
November 27	37	24	0.84	4.5
November 28	43	33	0.03	0.0
November 29	42	28	0.53	0.0
November 30	53	33	0.02	0.0

December 1978 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	47	30	0.00
December 2	54	31	0.00
December 3	50	34	0.16
December 4	70	44	0.85
December 5	49	37	0.47
December 6	59	30	0.00
December 7	57	32	0.00
December 8	67	47	0.17
December 9	65	30	1.55
December 10	32	19	0.00
December 11	34	14	0.00
December 12	44	20	0.00
December 13	51	22	0.00
December 14	39	24	0.00
December 15	50	25	0.00
December 16	55	28	0.13
December 17	45	35	0.00
December 18	47	33	0.00
December 19	35	23	0.00
December 20	42	28	0.37
December 21	50	32	0.21
December 22	42	26	0.00
December 23	48	24	0.00
December 24	47	25	1.34
December 25	45	31	0.09
December 26	44	23	0.00
December 27	36	23	0.00
December 28	34	18	0.00
December 29	36	13	0.00
December 30	37	19	0.00
December 31	44	34	0.22

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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