Washington D.C. Weather in 1978

Historical record of Washington D.C. weather for the year 1978 based on NOAA data.

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1978 Washington D.C. Weather Extremes
Highest temperature	100 °F	July 23
Lowest temperature	10 °F	January 10
Highest daily low	81 °F	July 23
Lowest daily high	23 °F	January 10
Most daily precipitation	2.2 inches	March 26
Most daily snow	4.6 inches	January 13
Total annual precipitation	39.6 inches	-
Total annual snow	25.5 inches	-

What was the hottest temperature in Washington D.C. in 1978?

The highest temperature recorded in Washington D.C. in 1978 was 100 °F which happened on July 23.

Highest Temperatures: All-Time By Year

Highest Temperatures in Washington D.C. in 1978

Rank	Temperature	Date
1	100 °F	Jul 23
2	98 °F	Jul 22
3	97 °F	Jun 27
4	96 °F	Jul 27
4	96 °F	Jun 19
6	95 °F	Jul 21
6	95 °F	Jul 10
8	94 °F	Sep 19
8	94 °F	Jun 18
10	93 °F	Sep 7
10	93 °F	Aug 29
10	93 °F	Aug 25
10	93 °F	Aug 24
10	93 °F	Aug 19
10	93 °F	Aug 17
10	93 °F	Aug 16
10	93 °F	Jun 30

What was the coldest temperature in Washington D.C. in 1978?

The lowest temperature recorded in Washington D.C. in 1978 was 10 °F which happened on Jan 10.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Washington D.C. in 1978

Rank	Temperature	Date
1	10 °F	January 10
2	14 °F	January 9
3	16 °F	March 5
3	16 °F	January 11
5	18 °F	February 7
5	18 °F	February 4
5	18 °F	February 1
5	18 °F	January 4
9	19 °F	February 6
9	19 °F	February 5
9	19 °F	January 31
9	19 °F	January 29
9	19 °F	January 23
9	19 °F	January 16
9	19 °F	January 12

January 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	38	31	0.02	0.0
January 2	41	29	0.00	0.0
January 3	36	24	0.00	0.0
January 4	37	18	0.00	0.0
January 5	45	28	0.00	0.0
January 6	48	37	0.00	0.0
January 7	44	40	0.00	0.0
January 8	62	41	0.83	0.0
January 9	62	14	0.91	0.6
January 10	23	10	0.00	0.0
January 11	34	16	0.00	0.0
January 12	40	19	0.00	0.0
January 13	36	30	1.13	4.6
January 14	37	31	0.10	0.0
January 15	33	24	0.01	0.0
January 16	34	19	0.00	0.1
January 17	38	31	1.03	0.9
January 18	40	29	0.00	0.0
January 19	36	27	0.29	3.0
January 20	37	30	0.48	1.1
January 21	36	31	0.00	0.0
January 22	35	23	0.00	0.0
January 23	39	19	0.00	0.0
January 24	42	22	0.03	0.0
January 25	44	35	1.66	0.0
January 26	59	26	0.62	0.0
January 27	36	25	0.00	0.0
January 28	30	20	0.00	0.0
January 29	31	19	0.00	0.0
January 30	34	22	0.00	0.0
January 31	35	19	0.00	0.0

February 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	33	18	0.00	0.0
February 2	34	23	0.04	0.3
February 3	34	21	0.00	0.0
February 4	32	18	0.00	0.0
February 5	33	19	0.06	0.6
February 6	26	19	0.14	1.6
February 7	30	18	0.00	0.0
February 8	38	21	0.00	0.0
February 9	39	22	0.00	0.0
February 10	36	20	0.00	0.0
February 11	40	20	0.00	0.0
February 12	45	27	0.00	0.0
February 13	37	24	0.17	1.3
February 14	39	32	0.00	0.0
February 15	41	26	0.00	0.0
February 16	41	29	0.01	0.0
February 17	41	33	0.00	0.0
February 18	43	35	0.00	0.0
February 19	36	23	0.00	0.0
February 20	38	21	0.00	0.0
February 21	41	26	0.00	0.0
February 22	34	21	0.00	0.0
February 23	41	22	0.00	0.0
February 24	46	29	0.00	0.0
February 25	54	32	0.00	0.0
February 26	45	32	0.00	0.0
February 27	40	26	0.00	0.0
February 28	36	28	0.00	0.0

March 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	39	28	0.08	0.8
March 2	35	22	0.00	0.0
March 3	33	27	0.42	4.1
March 4	35	22	0.00	0.0
March 5	35	16	0.00	0.0
March 6	39	27	0.00	0.0
March 7	38	30	0.00	0.0
March 8	35	28	0.28	3.4
March 9	38	31	0.00	0.0
March 10	45	36	0.45	0.0
March 11	55	34	0.00	0.0
March 12	61	44	0.00	0.0
March 13	54	40	0.00	0.0
March 14	64	43	0.17	0.0
March 15	58	43	0.00	0.0
March 16	45	37	0.15	0.0
March 17	45	35	0.00	0.0
March 18	46	32	0.00	0.0
March 19	74	42	0.00	0.0
March 20	61	41	0.00	0.0
March 21	79	41	0.09	0.0
March 22	66	46	0.00	0.0
March 23	75	46	0.00	0.0
March 24	59	46	0.00	0.0
March 25	46	38	0.27	0.0
March 26	49	38	2.16	0.0
March 27	61	43	0.41	0.0
March 28	65	46	0.00	0.0
March 29	67	47	0.00	0.0
March 30	54	38	0.00	0.0
March 31	64	42	0.00	0.0

April 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	88	47	0.00
April 2	75	47	0.00
April 3	49	43	0.02
April 4	70	43	0.00
April 5	69	52	0.00
April 6	58	46	0.02
April 7	77	47	0.08
April 8	74	52	0.00
April 9	65	40	0.00
April 10	69	52	0.00
April 11	85	52	0.10
April 12	74	51	0.00
April 13	80	56	0.00
April 14	69	47	0.00
April 15	65	44	0.00
April 16	61	40	0.00
April 17	67	47	0.00
April 18	64	47	0.38
April 19	58	51	0.48
April 20	63	50	0.00
April 21	60	45	0.00
April 22	63	42	0.00
April 23	66	41	0.00
April 24	72	49	0.00
April 25	64	49	0.07
April 26	54	48	0.23
April 27	60	46	0.00
April 28	74	43	0.00
April 29	77	47	0.00
April 30	73	56	0.00

May 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	62	46	0.00
May 2	70	42	0.00
May 3	71	49	0.00
May 4	56	46	1.26
May 5	55	48	0.06
May 6	66	51	0.02
May 7	68	55	0.00
May 8	61	54	0.53
May 9	83	60	0.34
May 10	70	54	0.00
May 11	74	49	0.00
May 12	81	57	0.00
May 13	74	56	0.34
May 14	69	56	0.56
May 15	68	58	1.24
May 16	61	55	0.55
May 17	72	56	0.00
May 18	79	55	0.02
May 19	80	60	0.00
May 20	87	60	0.00
May 21	86	64	0.00
May 22	77	53	0.00
May 23	79	58	0.08
May 24	78	64	0.13
May 25	88	62	0.00
May 26	88	65	0.00
May 27	77	67	0.00
May 28	80	67	0.00
May 29	81	67	0.00
May 30	86	67	0.00
May 31	83	69	0.00

June 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	89	70	0.00
June 2	90	69	0.00
June 3	85	69	0.10
June 4	79	62	0.00
June 5	88	63	0.02
June 6	84	63	0.00
June 7	81	67	0.12
June 8	80	75	0.04
June 9	86	68	0.00
June 10	84	60	0.00
June 11	87	64	0.00
June 12	89	65	0.00
June 13	79	58	0.40
June 14	76	54	0.00
June 15	78	56	0.00
June 16	83	60	0.00
June 17	78	70	0.00
June 18	94	71	0.00
June 19	96	75	0.10
June 20	88	69	0.00
June 21	88	70	0.52
June 22	87	69	0.00
June 23	86	69	0.00
June 24	86	66	0.00
June 25	88	67	0.00
June 26	88	73	0.02
June 27	97	73	0.71
June 28	92	72	0.02
June 29	92	71	0.38
June 30	93	71	0.00

July 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	86	70	0.00
July 2	75	64	0.31
July 3	70	65	1.72
July 4	75	65	0.00
July 5	83	62	0.00
July 6	85	64	0.00
July 7	86	66	0.00
July 8	90	70	0.24
July 9	92	72	0.00
July 10	95	75	0.55
July 11	80	67	0.02
July 12	81	63	0.00
July 13	84	62	0.00
July 14	82	74	0.00
July 15	89	73	0.00
July 16	77	73	0.02
July 17	87	69	0.00
July 18	90	69	0.00
July 19	92	74	0.00
July 20	92	73	0.00
July 21	95	74	0.00
July 22	98	78	0.00
July 23	100	81	0.00
July 24	90	78	0.12
July 25	82	74	0.00
July 26	87	72	0.00
July 27	96	76	0.00
July 28	92	72	0.15
July 29	89	66	0.00
July 30	90	76	0.31
July 31	88	72	0.84

August 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	85	73	0.04
August 2	85	76	0.15
August 3	89	75	0.06
August 4	81	74	0.47
August 5	87	74	0.46
August 6	87	76	0.00
August 7	90	77	0.00
August 8	90	77	0.00
August 9	91	73	0.32
August 10	89	73	0.00
August 11	90	73	0.59
August 12	87	73	0.09
August 13	85	75	1.21
August 14	90	74	0.06
August 15	90	77	0.00
August 16	93	76	0.00
August 17	93	78	0.00
August 18	90	73	0.00
August 19	93	74	0.00
August 20	85	72	0.00
August 21	85	66	0.00
August 22	86	65	0.00
August 23	89	66	0.00
August 24	93	70	0.00
August 25	93	77	0.00
August 26	88	75	0.00
August 27	87	76	0.36
August 28	90	76	0.00
August 29	93	76	0.00
August 30	90	74	2.01
August 31	86	74	0.03

September 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	79	70	0.00
September 2	84	66	0.00
September 3	87	70	0.00
September 4	85	69	0.00
September 5	88	65	0.00
September 6	90	69	0.00
September 7	93	72	0.00
September 8	88	75	0.00
September 9	87	72	0.00
September 10	79	66	0.00
September 11	87	72	0.00
September 12	89	73	0.54
September 13	74	63	0.00
September 14	72	62	0.00
September 15	81	66	0.10
September 16	87	67	0.10
September 17	86	69	0.00
September 18	90	72	0.00
September 19	94	66	0.02
September 20	79	65	0.00
September 21	84	68	0.00
September 22	86	65	0.25
September 23	72	61	0.00
September 24	73	59	0.00
September 25	81	60	0.00
September 26	71	55	0.00
September 27	75	55	0.00
September 28	77	58	0.00
September 29	68	50	0.00
September 30	75	52	0.00

October 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	75	64	0.00
October 2	74	56	0.00
October 3	72	50	0.00
October 4	69	60	0.27
October 5	66	60	0.55
October 6	72	55	0.03
October 7	63	49	0.00
October 8	58	49	0.00
October 9	60	40	0.00
October 10	67	45	0.00
October 11	74	50	0.00
October 12	79	54	0.00
October 13	83	63	0.00
October 14	70	50	0.00
October 15	61	45	0.00
October 16	61	46	0.07
October 17	61	48	0.00
October 18	65	41	0.00
October 19	66	52	0.09
October 20	67	50	0.00
October 21	73	45	0.00
October 22	79	48	0.00
October 23	85	53	0.05
October 24	59	43	0.00
October 25	68	40	0.00
October 26	82	60	0.01
October 27	70	46	0.09
October 28	68	43	0.00
October 29	67	44	0.00
October 30	63	44	0.00
October 31	66	48	0.00

November 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	70	46	0.00	0.0
November 2	71	42	0.00	0.0
November 3	72	45	0.00	0.0
November 4	60	52	0.02	0.0
November 5	74	49	0.00	0.0
November 6	76	45	0.00	0.0
November 7	72	50	0.00	0.0
November 8	59	45	0.00	0.0
November 9	65	39	0.00	0.0
November 10	66	44	0.00	0.0
November 11	66	53	0.04	0.0
November 12	64	50	0.00	0.0
November 13	57	50	0.00	0.0
November 14	69	53	0.00	0.0
November 15	65	52	0.11	0.0
November 16	52	48	0.03	0.0
November 17	61	48	0.50	0.0
November 18	68	48	0.14	0.0
November 19	57	40	0.00	0.0
November 20	55	39	0.00	0.0
November 21	55	41	0.00	0.0
November 22	47	43	0.00	0.0
November 23	52	44	0.12	0.0
November 24	61	46	0.00	0.0
November 25	46	43	0.00	0.0
November 26	48	34	0.08	0.8
November 27	38	34	0.81	2.3
November 28	50	37	0.00	0.0
November 29	47	34	0.46	0.0
November 30	55	38	0.00	0.0

December 1978 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	51	37	0.00
December 2	57	35	0.00
December 3	56	43	0.19
December 4	73	50	0.74
December 5	53	44	0.38
December 6	59	39	0.00
December 7	58	39	0.00
December 8	74	55	0.16
December 9	69	33	0.83
December 10	36	25	0.00
December 11	37	23	0.00
December 12	48	29	0.00
December 13	60	31	0.00
December 14	45	31	0.00
December 15	59	32	0.00
December 16	59	35	0.00
December 17	52	39	0.00
December 18	56	36	0.00
December 19	46	37	0.00
December 20	47	35	0.35
December 21	55	39	0.06
December 22	49	32	0.00
December 23	53	31	0.00
December 24	48	34	0.93
December 25	49	37	0.00
December 26	48	31	0.00
December 27	41	28	0.00
December 28	37	25	0.00
December 29	38	22	0.00
December 30	43	28	0.00
December 31	45	37	0.36

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Weather Station Details

Years	Station	Coordinates
1945–2023	Washington Reagan Airport	location
1851–1945	Washington D.C.	location