Wilmington Weather in 1991

Historical record of Wilmington, Delaware weather for the year 1991 based on NOAA data.

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1991 Wilmington Weather Extremes
Highest temperature	99 °F	July 23
Lowest temperature	13 °F	January 22
Highest daily low	77 °F	July 22
Lowest daily high	22 °F	January 22
Most daily precipitation	2.6 inches	August 9
Most daily snow	4.0 inches	January 7
Total annual precipitation	39.8 inches	-
Total annual snow	6.9 inches	-

What was the hottest temperature in Wilmington in 1991?

The highest temperature recorded in Wilmington, Delaware in 1991 was 99 °F which happened on July 23.

Highest Temperatures: All-Time By Year

Highest Temperatures in Wilmington in 1991

Rank	Temperature	Date
1	99 °F	Jul 23
2	97 °F	Jul 21
2	97 °F	Jul 20
2	97 °F	Jun 16
5	95 °F	Aug 29
5	95 °F	Jun 30
5	95 °F	Jun 29
8	94 °F	Aug 3
8	94 °F	Jul 18
8	94 °F	Jun 15
8	94 °F	May 31
8	94 °F	May 30

What was the coldest temperature in Wilmington in 1991?

The lowest temperature recorded in Wilmington, Delaware in 1991 was 13 °F which happened on Jan 22.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Wilmington in 1991

Rank	Temperature	Date
1	13 °F	January 22
2	14 °F	January 23
3	15 °F	January 26
4	17 °F	December 19
4	17 °F	February 16
4	17 °F	January 25
7	18 °F	December 20
8	19 °F	February 17
8	19 °F	February 15
8	19 °F	February 1
8	19 °F	January 8
8	19 °F	January 5

January 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	41	22	0.00	0.0
January 2	50	23	0.00	0.0
January 3	43	28	0.00	0.0
January 4	37	23	0.00	0.0
January 5	39	19	0.01	0.0
January 6	45	34	0.04	0.0
January 7	40	22	0.56	4.0
January 8	32	19	0.06	0.0
January 9	38	31	0.99	0.0
January 10	45	31	0.00	0.0
January 11	41	26	1.29	1.2
January 12	42	37	0.15	0.0
January 13	38	25	0.00	0.0
January 14	42	20	0.00	0.0
January 15	51	25	0.00	0.0
January 16	55	37	0.84	0.0
January 17	48	32	0.00	0.0
January 18	41	31	0.00	0.0
January 19	50	31	0.00	0.0
January 20	55	36	0.00	0.0
January 21	44	20	0.26	0.0
January 22	22	13	0.00	0.0
January 23	38	14	0.00	0.0
January 24	43	24	0.00	0.0
January 25	28	17	0.00	0.0
January 26	38	15	0.00	0.0
January 27	44	25	0.00	0.0
January 28	53	28	0.00	0.0
January 29	50	24	0.00	0.0
January 30	52	34	0.10	0.0
January 31	51	24	0.00	0.0

February 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	38	19	0.00	0.0
February 2	53	27	0.00	0.0
February 3	64	32	0.00	0.0
February 4	67	34	0.00	0.0
February 5	70	33	0.00	0.0
February 6	54	46	0.09	0.0
February 7	50	45	0.13	0.0
February 8	51	33	0.00	0.0
February 9	51	33	0.00	0.0
February 10	48	31	0.00	0.0
February 11	39	25	0.00	0.0
February 12	33	20	0.00	0.0
February 13	45	28	0.26	0.0
February 14	54	38	0.22	0.0
February 15	40	19	0.00	0.0
February 16	28	17	0.00	0.0
February 17	40	19	0.02	0.6
February 18	43	34	0.08	0.0
February 19	59	41	0.14	0.0
February 20	61	37	0.02	0.0
February 21	56	30	0.00	0.0
February 22	66	35	0.00	0.0
February 23	39	28	0.00	0.0
February 24	47	26	0.00	0.0
February 25	50	33	0.00	0.0
February 26	41	31	0.01	0.0
February 27	40	25	0.00	0.0
February 28	49	28	0.00	0.0

March 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	64	29	0.00	0.0
March 2	69	47	0.13	0.0
March 3	66	48	0.78	0.0
March 4	58	37	0.08	0.0
March 5	57	35	0.00	0.0
March 6	60	33	0.41	0.0
March 7	52	34	0.00	0.0
March 8	44	28	0.00	0.0
March 9	46	23	0.00	0.0
March 10	50	30	0.00	0.0
March 11	43	29	0.00	0.0
March 12	45	24	0.00	0.0
March 13	38	27	0.09	0.4
March 14	37	34	0.31	0.0
March 15	48	33	0.02	0.0
March 16	54	28	0.00	0.0
March 17	58	29	0.00	0.0
March 18	53	42	0.78	0.0
March 19	55	42	0.00	0.0
March 20	57	37	0.00	0.0
March 21	56	41	0.00	0.0
March 22	50	42	0.03	0.0
March 23	46	40	0.95	0.0
March 24	60	43	0.01	0.0
March 25	53	38	0.00	0.0
March 26	54	32	0.08	0.0
March 27	63	44	0.30	0.0
March 28	77	54	0.00	0.0
March 29	57	49	0.42	0.0
March 30	49	33	0.25	0.5
March 31	51	27	0.00	0.0

April 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	53	31	0.11
April 2	52	35	0.00
April 3	57	29	0.00
April 4	62	36	0.00
April 5	60	44	0.03
April 6	75	47	0.00
April 7	84	50	0.00
April 8	86	54	0.00
April 9	83	66	0.00
April 10	72	46	0.00
April 11	61	41	0.00
April 12	59	38	0.00
April 13	48	40	0.50
April 14	51	42	0.02
April 15	53	44	0.44
April 16	75	42	0.00
April 17	76	50	0.02
April 18	56	45	0.00
April 19	55	43	0.00
April 20	51	43	0.06
April 21	49	42	1.55
April 22	55	42	0.02
April 23	67	41	0.00
April 24	62	50	0.50
April 25	73	46	0.00
April 26	74	48	0.00
April 27	79	50	0.00
April 28	67	54	0.00
April 29	64	53	0.03
April 30	77	54	0.00

May 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	76	55	0.00
May 2	69	52	0.00
May 3	66	50	0.00
May 4	71	41	0.00
May 5	73	45	0.00
May 6	77	55	1.90
May 7	67	50	0.00
May 8	74	46	0.00
May 9	68	55	0.00
May 10	77	54	0.00
May 11	74	49	0.00
May 12	87	54	0.00
May 13	89	64	0.05
May 14	88	64	0.00
May 15	85	64	0.00
May 16	83	59	0.00
May 17	84	60	0.00
May 18	70	53	0.00
May 19	66	50	0.00
May 20	71	42	0.00
May 21	79	52	0.00
May 22	87	60	0.00
May 23	91	65	0.00
May 24	86	61	0.00
May 25	92	67	0.03
May 26	90	67	0.00
May 27	91	65	0.00
May 28	91	74	0.00
May 29	93	65	0.00
May 30	94	69	0.00
May 31	94	74	0.00

June 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	89	71	0.00
June 2	85	64	0.00
June 3	86	69	0.00
June 4	77	59	0.00
June 5	75	53	0.00
June 6	74	50	0.00
June 7	82	51	0.00
June 8	85	57	0.00
June 9	90	63	0.00
June 10	91	63	0.00
June 11	90	69	0.20
June 12	86	65	0.03
June 13	78	56	0.00
June 14	85	52	0.00
June 15	94	59	0.00
June 16	97	73	0.41
June 17	91	71	0.00
June 18	71	62	2.41
June 19	72	62	0.02
June 20	90	66	0.00
June 21	91	68	0.00
June 22	81	69	0.00
June 23	69	58	0.12
June 24	83	56	0.00
June 25	82	60	0.00
June 26	81	59	0.00
June 27	86	61	0.00
June 28	91	66	0.00
June 29	95	74	0.00
June 30	95	69	0.22

July 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	84	68	0.00
July 2	79	67	0.10
July 3	75	70	0.00
July 4	76	68	0.00
July 5	75	67	0.00
July 6	86	69	0.00
July 7	90	70	0.51
July 8	89	70	0.00
July 9	86	68	0.00
July 10	83	60	0.00
July 11	88	65	0.00
July 12	88	69	0.04
July 13	86	73	0.91
July 14	85	68	0.00
July 15	86	63	0.00
July 16	87	62	0.00
July 17	91	66	0.00
July 18	94	71	0.00
July 19	91	75	0.00
July 20	97	75	0.00
July 21	97	76	0.00
July 22	92	77	0.03
July 23	99	75	0.02
July 24	90	74	0.00
July 25	82	74	0.25
July 26	85	70	1.78
July 27	76	63	0.03
July 28	85	62	0.00
July 29	75	64	0.04
July 30	79	63	0.00
July 31	83	71	0.00

August 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	89	66	0.00
August 2	93	71	0.00
August 3	94	74	0.67
August 4	88	71	0.00
August 5	83	63	0.00
August 6	83	63	0.00
August 7	83	61	0.00
August 8	85	64	0.00
August 9	77	72	2.60
August 10	83	68	0.11
August 11	82	64	0.00
August 12	85	63	0.00
August 13	88	66	0.00
August 14	85	68	0.02
August 15	80	71	0.09
August 16	90	65	0.00
August 17	88	70	0.00
August 18	89	72	0.03
August 19	86	69	1.77
August 20	80	69	0.09
August 21	82	67	0.00
August 22	84	63	0.00
August 23	87	64	0.00
August 24	86	68	0.00
August 25	80	65	0.00
August 26	84	62	0.00
August 27	86	64	0.00
August 28	90	69	0.00
August 29	95	71	0.00
August 30	93	74	0.00
August 31	91	68	0.00

September 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	73	58	0.00
September 2	74	51	0.00
September 3	78	52	0.00
September 4	83	61	0.00
September 5	83	65	0.19
September 6	77	63	0.04
September 7	85	61	0.00
September 8	87	61	0.00
September 9	87	63	0.00
September 10	84	67	0.00
September 11	83	65	0.00
September 12	75	55	0.00
September 13	80	51	0.00
September 14	75	65	0.84
September 15	82	63	0.00
September 16	92	71	0.00
September 17	92	73	0.74
September 18	83	71	0.02
September 19	81	54	0.68
September 20	66	48	0.02
September 21	66	45	0.00
September 22	68	43	0.00
September 23	70	54	0.01
September 24	74	60	0.66
September 25	72	58	2.03
September 26	73	52	0.13
September 27	65	46	0.00
September 28	66	42	0.00
September 29	76	47	0.00
September 30	66	48	0.00

October 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	77	51	0.00
October 2	80	61	0.00
October 3	79	63	0.00
October 4	83	57	0.00
October 5	79	63	0.00
October 6	71	44	0.01
October 7	60	40	0.00
October 8	64	37	0.00
October 9	70	43	0.00
October 10	74	47	0.00
October 11	62	49	0.16
October 12	64	41	0.01
October 13	62	42	0.00
October 14	62	38	0.00
October 15	66	55	0.33
October 16	64	51	0.00
October 17	52	45	0.76
October 18	72	47	0.00
October 19	77	46	0.00
October 20	54	35	0.00
October 21	58	32	0.00
October 22	69	38	0.00
October 23	70	46	0.00
October 24	71	53	0.00
October 25	68	57	0.00
October 26	72	57	0.00
October 27	73	56	0.00
October 28	67	47	0.00
October 29	59	36	0.00
October 30	68	35	0.00
October 31	64	46	0.00

November 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	62	48	0.00
November 2	70	50	0.00
November 3	53	39	0.00
November 4	42	32	0.00
November 5	47	28	0.00
November 6	52	24	0.00
November 7	53	30	0.00
November 8	45	39	0.00
November 9	46	35	0.01
November 10	44	37	0.19
November 11	47	39	0.04
November 12	49	37	0.06
November 13	50	36	0.06
November 14	60	34	0.00
November 15	66	41	0.00
November 16	66	40	0.00
November 17	50	30	0.00
November 18	53	28	0.00
November 19	64	40	0.00
November 20	73	44	0.00
November 21	72	62	0.07
November 22	69	60	0.82
November 23	62	53	0.00
November 24	59	37	0.00
November 25	42	31	0.00
November 26	41	26	0.00
November 27	43	23	0.00
November 28	53	29	0.00
November 29	67	44	0.00
November 30	72	42	0.01

December 1991 Wilmington Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	64	56	0.45	0.0
December 2	57	42	1.27	0.0
December 3	58	43	0.75	0.0
December 4	47	28	0.01	0.2
December 5	34	23	0.00	0.0
December 6	46	31	0.00	0.0
December 7	54	26	0.00	0.0
December 8	57	34	0.00	0.0
December 9	67	46	0.78	0.0
December 10	52	34	0.13	0.0
December 11	55	31	0.00	0.0
December 12	52	35	0.00	0.0
December 13	58	48	0.12	0.0
December 14	62	37	0.04	0.0
December 15	40	33	0.00	0.0
December 16	34	25	0.00	0.0
December 17	45	26	0.00	0.0
December 18	40	22	0.00	0.0
December 19	31	17	0.00	0.0
December 20	38	18	0.00	0.0
December 21	48	33	0.00	0.0
December 22	49	30	0.00	0.0
December 23	42	26	0.01	0.0
December 24	42	26	0.00	0.0
December 25	45	27	0.00	0.0
December 26	40	22	0.00	0.0
December 27	49	26	0.00	0.0
December 28	45	23	0.00	0.0
December 29	51	40	0.70	0.0
December 30	47	27	0.00	0.0
December 31	38	22	0.00	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