Seattle Weather in 1978

Historical record of Seattle, Washington weather for the year 1978 based on NOAA data.

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1978 Seattle Weather Extremes
Highest temperature	95 °F	August 8
Lowest temperature	13 °F	December 31
Highest daily low	64 °F	August 8
Lowest daily high	23 °F	December 30
Most daily precipitation	1.7 inches	September 22
Most daily snow	3.1 inches	November 18
Total annual precipitation	34.0 inches	-
Total annual snow	5.1 inches	-

What was the hottest temperature in Seattle in 1978?

The highest temperature recorded in Seattle, Washington in 1978 was 95 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Seattle in 1978

Rank	Temperature	Date
1	95 °F	Aug 8
1	95 °F	Jul 22
3	93 °F	Jul 21
4	92 °F	Jun 5
5	89 °F	Jul 20
6	88 °F	Aug 7
6	88 °F	Jul 25
6	88 °F	Jun 28
6	88 °F	Jun 4
10	87 °F	Jun 3

What was the coldest temperature in Seattle in 1978?

The lowest temperature recorded in Seattle, Washington in 1978 was 13 °F which happened on Dec 31.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Seattle in 1978

Rank	Temperature	Date
1	13 °F	December 31
2	14 °F	December 30
3	17 °F	December 29
4	19 °F	December 28
5	24 °F	November 12
6	25 °F	November 22
7	26 °F	December 27
7	26 °F	December 13
7	26 °F	November 14
10	27 °F	November 13

January 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	44	29	0.00
January 2	43	33	0.08
January 3	47	33	1.01
January 4	53	46	0.29
January 5	50	39	0.08
January 6	42	38	0.00
January 7	46	40	0.61
January 8	50	45	0.43
January 9	52	45	0.15
January 10	47	44	0.05
January 11	50	43	0.10
January 12	55	42	0.06
January 13	49	41	0.09
January 14	55	44	0.14
January 15	55	49	0.00
January 16	54	44	0.00
January 17	53	39	0.00
January 18	54	44	0.01
January 19	55	44	0.01
January 20	52	46	0.05
January 21	50	43	0.72
January 22	46	37	0.00
January 23	44	35	0.00
January 24	48	35	0.00
January 25	44	39	0.08
January 26	46	38	0.15
January 27	45	36	0.00
January 28	43	41	0.08
January 29	46	36	0.00
January 30	47	34	0.00
January 31	46	37	0.11

February 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	46	39	0.64
February 2	50	45	0.74
February 3	53	49	0.00
February 4	62	44	0.00
February 5	59	48	0.27
February 6	59	46	0.05
February 7	52	44	0.30
February 8	57	43	0.09
February 9	50	35	0.07
February 10	45	32	0.00
February 11	46	32	0.00
February 12	52	31	0.00
February 13	53	41	0.00
February 14	51	37	0.57
February 15	47	37	0.00
February 16	47	36	0.00
February 17	52	40	0.00
February 18	51	46	0.09
February 19	59	44	0.00
February 20	53	43	0.00
February 21	60	44	0.00
February 22	50	40	0.00
February 23	52	43	0.24
February 24	48	42	0.17
February 25	47	42	0.36
February 26	49	38	0.00
February 27	49	34	0.00
February 28	48	34	0.00

March 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	51	30	0.00
March 2	51	34	0.00
March 3	48	37	0.05
March 4	52	36	0.00
March 5	53	41	0.01
March 6	55	41	0.04
March 7	56	46	0.61
March 8	58	43	0.00
March 9	54	42	0.00
March 10	53	36	0.00
March 11	45	39	0.70
March 12	50	39	0.01
March 13	51	37	0.06
March 14	54	35	0.01
March 15	56	37	0.00
March 16	64	40	0.00
March 17	64	39	0.00
March 18	63	40	0.00
March 19	59	44	0.00
March 20	64	41	0.00
March 21	62	46	0.00
March 22	61	43	0.00
March 23	54	48	0.31
March 24	58	46	0.17
March 25	52	47	0.30
March 26	62	47	0.00
March 27	58	49	0.00
March 28	57	46	0.15
March 29	59	46	0.00
March 30	52	45	0.01
March 31	61	38	0.00

April 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	52	44	0.02
April 2	52	41	0.11
April 3	64	43	0.00
April 4	58	43	0.30
April 5	54	40	0.06
April 6	53	33	0.00
April 7	60	37	0.00
April 8	59	45	0.00
April 9	64	40	0.00
April 10	69	43	0.02
April 11	57	39	0.00
April 12	57	38	0.00
April 13	53	40	0.15
April 14	50	43	0.12
April 15	61	41	0.67
April 16	50	38	0.68
April 17	54	40	0.07
April 18	59	45	0.26
April 19	58	44	0.47
April 20	56	40	0.00
April 21	50	39	0.17
April 22	50	41	0.40
April 23	58	41	0.00
April 24	70	48	0.00
April 25	64	52	0.00
April 26	56	50	0.07
April 27	56	49	0.18
April 28	56	48	0.44
April 29	59	45	0.00
April 30	61	44	0.00

May 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	64	44	0.00
May 2	61	47	0.00
May 3	58	42	0.09
May 4	55	40	0.05
May 5	60	39	0.00
May 6	65	40	0.00
May 7	71	45	0.00
May 8	67	44	0.00
May 9	59	49	0.08
May 10	53	45	0.13
May 11	59	46	0.00
May 12	59	45	0.21
May 13	59	51	0.23
May 14	53	45	0.41
May 15	60	47	0.20
May 16	63	48	0.00
May 17	63	48	0.00
May 18	68	48	0.00
May 19	79	52	0.00
May 20	82	53	0.00
May 21	62	45	0.00
May 22	59	42	0.03
May 23	62	40	0.00
May 24	63	46	0.00
May 25	61	44	0.13
May 26	58	50	0.06
May 27	63	49	0.11
May 28	62	48	0.06
May 29	61	45	0.00
May 30	69	43	0.00
May 31	78	51	0.00

June 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	82	61	0.00
June 2	86	58	0.00
June 3	87	58	0.00
June 4	88	59	0.00
June 5	92	61	0.00
June 6	83	57	0.00
June 7	71	54	0.00
June 8	74	51	0.00
June 9	65	52	0.31
June 10	66	49	0.00
June 11	72	54	0.03
June 12	69	54	0.28
June 13	64	51	0.10
June 14	67	47	0.03
June 15	67	50	0.00
June 16	66	49	0.00
June 17	76	51	0.00
June 18	71	53	0.00
June 19	75	49	0.00
June 20	80	54	0.00
June 21	71	53	0.00
June 22	69	52	0.00
June 23	72	50	0.00
June 24	69	52	0.00
June 25	67	54	0.00
June 26	76	52	0.00
June 27	85	55	0.00
June 28	88	59	0.00
June 29	67	60	0.00
June 30	75	59	0.00

July 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	76	58	0.00
July 2	68	58	0.00
July 3	67	56	0.00
July 4	64	54	0.00
July 5	70	56	0.00
July 6	77	53	0.00
July 7	75	53	0.00
July 8	68	55	0.00
July 9	69	55	0.00
July 10	66	52	0.05
July 11	71	53	0.02
July 12	79	52	0.00
July 13	85	55	0.00
July 14	85	56	0.00
July 15	74	57	0.00
July 16	62	55	0.60
July 17	68	52	0.00
July 18	73	53	0.00
July 19	81	54	0.00
July 20	89	56	0.00
July 21	93	61	0.00
July 22	95	64	0.00
July 23	84	56	0.00
July 24	75	54	0.00
July 25	88	55	0.00
July 26	72	59	0.73
July 27	73	58	0.00
July 28	78	55	0.00
July 29	81	55	0.00
July 30	83	55	0.00
July 31	74	52	0.00

August 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	72	55	0.00
August 2	78	55	0.00
August 3	83	56	0.00
August 4	79	58	0.00
August 5	79	57	0.00
August 6	84	60	0.00
August 7	88	62	0.00
August 8	95	64	0.00
August 9	85	58	0.00
August 10	75	54	0.05
August 11	66	57	0.15
August 12	72	56	0.02
August 13	74	57	0.00
August 14	65	54	0.13
August 15	71	56	0.00
August 16	71	54	0.00
August 17	71	54	0.00
August 18	69	57	0.10
August 19	65	57	0.03
August 20	66	54	0.03
August 21	75	57	0.00
August 22	66	55	0.05
August 23	66	53	0.06
August 24	73	57	0.30
August 25	71	55	0.08
August 26	74	53	0.00
August 27	73	52	0.00
August 28	79	58	0.00
August 29	80	58	0.00
August 30	74	58	0.00
August 31	66	60	0.19

September 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	66	59	0.55
September 2	73	56	0.25
September 3	63	56	0.14
September 4	63	55	0.14
September 5	62	54	0.18
September 6	67	53	0.06
September 7	67	51	0.00
September 8	67	51	0.32
September 9	65	57	0.47
September 10	66	54	0.00
September 11	69	54	0.02
September 12	66	53	0.00
September 13	60	52	0.02
September 14	68	52	0.00
September 15	68	52	0.00
September 16	63	45	0.13
September 17	58	45	0.58
September 18	64	43	0.00
September 19	66	45	0.00
September 20	58	52	0.25
September 21	62	52	0.18
September 22	60	53	1.65
September 23	64	54	0.71
September 24	64	53	0.00
September 25	69	55	0.00
September 26	67	53	0.01
September 27	70	54	0.02
September 28	64	53	0.16
September 29	73	53	0.00
September 30	67	50	0.11

October 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	65	49	0.00
October 2	67	48	0.00
October 3	65	47	0.00
October 4	64	49	0.00
October 5	71	49	0.00
October 6	72	43	0.00
October 7	67	51	0.00
October 8	72	56	0.00
October 9	65	53	0.00
October 10	60	52	0.00
October 11	63	49	0.00
October 12	61	45	0.00
October 13	65	46	0.00
October 14	71	49	0.00
October 15	66	47	0.00
October 16	60	56	0.00
October 17	65	51	0.00
October 18	65	50	0.00
October 19	64	45	0.00
October 20	57	50	0.10
October 21	59	42	0.00
October 22	61	44	0.00
October 23	66	46	0.78
October 24	56	45	0.00
October 25	59	40	0.00
October 26	53	39	0.00
October 27	55	46	0.00
October 28	52	45	0.10
October 29	53	40	0.00
October 30	53	36	0.00
October 31	53	33	0.00

November 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	59	36	0.00	0.0
November 2	53	42	0.67	0.0
November 3	57	44	1.05	0.0
November 4	53	40	0.00	0.0
November 5	50	36	0.00	0.0
November 6	56	40	0.00	0.0
November 7	59	51	0.01	0.0
November 8	52	40	0.24	0.0
November 9	47	34	0.23	0.0
November 10	45	33	0.00	0.0
November 11	45	28	0.00	0.0
November 12	44	24	0.00	0.0
November 13	44	27	0.00	0.0
November 14	47	26	0.00	0.0
November 15	44	29	0.58	0.0
November 16	50	42	0.25	0.0
November 17	50	42	0.00	0.0
November 18	44	34	0.57	3.1
November 19	35	31	0.87	1.8
November 20	37	31	0.00	0.0
November 21	41	28	0.00	0.0
November 22	38	25	0.00	0.0
November 23	40	33	0.00	0.0
November 24	47	36	0.00	0.0
November 25	46	36	0.00	0.0
November 26	45	33	0.00	0.0
November 27	43	30	0.33	0.0
November 28	47	42	0.00	0.0
November 29	48	42	0.54	0.0
November 30	48	43	0.71	0.0

December 1978 Seattle Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	44	42	0.01	0.0
December 2	46	40	0.00	0.0
December 3	50	44	0.12	0.0
December 4	46	35	0.51	0.0
December 5	42	34	0.06	0.0
December 6	41	30	0.00	0.0
December 7	38	28	0.00	0.0
December 8	40	32	0.01	0.0
December 9	46	36	0.17	0.0
December 10	53	38	0.20	0.0
December 11	52	33	0.04	0.0
December 12	45	30	0.00	0.0
December 13	45	26	0.00	0.0
December 14	50	37	0.00	0.0
December 15	45	34	0.00	0.0
December 16	45	34	0.00	0.0
December 17	46	38	0.06	0.0
December 18	44	35	0.01	0.0
December 19	35	31	0.00	0.0
December 20	44	34	0.04	0.2
December 21	45	41	0.03	0.0
December 22	46	40	0.06	0.0
December 23	51	40	0.01	0.0
December 24	50	35	0.00	0.0
December 25	43	29	0.00	0.0
December 26	43	32	0.00	0.0
December 27	42	26	0.04	0.0
December 28	31	19	0.00	0.0
December 29	28	17	0.00	0.0
December 30	23	14	0.00	0.0
December 31	26	13	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1948–2024	Seattle Tacoma International Airport	location
1894–1947	University of Washington	location