San Jose Weather in 1978

Historical record of San Jose, California weather for the year 1978 based on NOAA data.

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1978 San Jose Weather Extremes
Highest temperature	96 °F	August 6
Lowest temperature	28 °F	December 30
Highest daily low	64 °F	August 7
Lowest daily high	49 °F	December 30
Most daily precipitation	1.4 inches	January 5
Most daily snow	none	-
Total annual precipitation	19.8 inches	-
Total annual snow	none	-

What was the hottest temperature in San Jose in 1978?

The highest temperature recorded in San Jose, California in 1978 was 96 °F which happened on August 6.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Jose in 1978

Rank	Temperature	Date
1	96 °F	Aug 6
2	95 °F	Sep 24
2	95 °F	May 30
4	94 °F	Sep 25
4	94 °F	Aug 5
4	94 °F	May 31
7	93 °F	Sep 30
7	93 °F	Sep 29
7	93 °F	Jul 17
7	93 °F	Jun 6

What was the coldest temperature in San Jose in 1978?

The lowest temperature recorded in San Jose, California in 1978 was 28 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Jose in 1978

Rank	Temperature	Date
1	28 °F	December 30
1	28 °F	December 8
3	30 °F	December 31
4	31 °F	December 25
4	31 °F	December 21
6	32 °F	December 26
6	32 °F	December 22
6	32 °F	December 20
6	32 °F	December 10
6	32 °F	December 9

January 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	56	42	0.00
January 2	56	42	0.13
January 3	61	51	0.21
January 4	59	48	0.44
January 5	59	53	1.43
January 6	58	52	0.08
January 7	66	42	0.00
January 8	66	43	0.00
January 9	64	55	0.75
January 10	62	49	0.00
January 11	63	49	0.00
January 12	61	52	0.16
January 13	64	53	0.13
January 14	59	53	0.97
January 15	58	47	1.02
January 16	60	52	0.81
January 17	59	51	0.50
January 18	59	48	0.02
January 19	57	50	0.42
January 20	59	48	0.00
January 21	59	45	0.00
January 22	59	41	0.00
January 23	57	39	0.00
January 24	58	35	0.00
January 25	59	38	0.00
January 26	60	39	0.00
January 27	59	40	0.00
January 28	62	44	0.00
January 29	62	39	0.00
January 30	59	43	0.00
January 31	60	43	0.00

February 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	62	45	0.00
February 2	63	40	0.01
February 3	65	42	0.00
February 4	63	46	0.00
February 5	62	46	0.27
February 6	64	46	0.50
February 7	62	53	0.50
February 8	61	46	0.06
February 9	55	50	0.72
February 10	54	46	0.00
February 11	56	38	0.01
February 12	53	33	0.60
February 13	56	46	0.27
February 14	58	41	0.00
February 15	57	44	0.01
February 16	57	40	0.00
February 17	61	48	0.00
February 18	64	44	0.00
February 19	65	50	0.00
February 20	63	47	0.00
February 21	63	47	0.00
February 22	71	45	0.00
February 23	70	46	0.00
February 24	65	51	0.00
February 25	61	52	0.00
February 26	62	51	0.00
February 27	63	50	0.00
February 28	64	44	0.00

March 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	66	53	0.14
March 2	60	53	0.76
March 3	64	54	0.14
March 4	61	55	0.71
March 5	62	52	0.46
March 6	67	47	0.00
March 7	70	50	0.00
March 8	66	54	0.21
March 9	62	52	0.35
March 10	62	51	0.00
March 11	60	47	0.00
March 12	61	47	0.00
March 13	64	42	0.00
March 14	67	46	0.00
March 15	71	43	0.00
March 16	79	46	0.00
March 17	82	51	0.00
March 18	80	55	0.00
March 19	78	52	0.00
March 20	70	52	0.00
March 21	68	56	0.37
March 22	67	52	0.70
March 23	67	54	0.02
March 24	67	46	0.00
March 25	71	46	0.00
March 26	71	46	0.00
March 27	68	47	0.00
March 28	66	54	0.00
March 29	64	53	0.00
March 30	63	54	0.12
March 31	63	53	0.57

April 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	61	50	0.12
April 2	62	46	0.02
April 3	64	45	0.00
April 4	61	45	0.69
April 5	63	42	0.00
April 6	60	46	0.98
April 7	59	41	0.03
April 8	70	41	0.00
April 9	80	41	0.00
April 10	79	40	0.00
April 11	74	53	0.00
April 12	71	53	0.00
April 13	70	55	0.00
April 14	67	46	0.00
April 15	67	46	0.85
April 16	62	44	0.10
April 17	66	40	0.00
April 18	67	46	0.00
April 19	68	46	0.00
April 20	65	50	0.09
April 21	64	44	0.00
April 22	66	41	0.00
April 23	75	45	0.00
April 24	71	56	0.00
April 25	65	53	0.42
April 26	68	52	0.00
April 27	68	48	0.00
April 28	68	47	0.00
April 29	70	47	0.00
April 30	66	47	0.00

May 1978 San Jose Weather

Day	High (°F)	Low (°F)
May 1	74	47
May 2	80	51
May 3	78	53
May 4	72	50
May 5	71	50
May 6	77	50
May 7	82	49
May 8	84	52
May 9	81	56
May 10	69	53
May 11	70	47
May 12	83	49
May 13	85	55
May 14	80	55
May 15	73	55
May 16	76	51
May 17	85	53
May 18	89	54
May 19	92	53
May 20	89	58
May 21	74	55
May 22	70	53
May 23	68	50
May 24	65	49
May 25	67	49
May 26	71	53
May 27	82	53
May 28	85	52
May 29	91	56
May 30	95	55
May 31	94	59

June 1978 San Jose Weather

Day	High (°F)	Low (°F)
June 1	79	56
June 2	75	53
June 3	73	56
June 4	82	55
June 5	86	57
June 6	93	59
June 7	90	59
June 8	83	56
June 9	80	55
June 10	74	55
June 11	81	53
June 12	76	55
June 13	73	56
June 14	72	51
June 15	76	51
June 16	82	50
June 17	82	54
June 18	73	57
June 19	76	52
June 20	71	53
June 21	74	56
June 22	73	54
June 23	72	55
June 24	71	52
June 25	79	51
June 26	78	54
June 27	78	56
June 28	76	58
June 29	76	59
June 30	73	55

July 1978 San Jose Weather

Day	High (°F)	Low (°F)
July 1	72	55
July 2	72	55
July 3	79	52
July 4	81	53
July 5	84	53
July 6	84	53
July 7	79	55
July 8	87	55
July 9	86	64
July 10	80	53
July 11	75	54
July 12	72	55
July 13	88	57
July 14	89	61
July 15	85	56
July 16	87	55
July 17	93	58
July 18	90	60
July 19	86	59
July 20	82	57
July 21	87	58
July 22	85	58
July 23	82	58
July 24	86	58
July 25	84	59
July 26	77	59
July 27	75	57
July 28	75	56
July 29	75	56
July 30	84	55
July 31	86	55

August 1978 San Jose Weather

Day	High (°F)	Low (°F)
August 1	86	58
August 2	80	53
August 3	80	53
August 4	85	63
August 5	94	60
August 6	96	63
August 7	92	64
August 8	91	58
August 9	85	60
August 10	82	58
August 11	85	57
August 12	79	56
August 13	78	56
August 14	88	53
August 15	88	54
August 16	81	53
August 17	80	51
August 18	90	57
August 19	88	56
August 20	83	54
August 21	77	55
August 22	75	53
August 23	74	50
August 24	78	51
August 25	78	61
August 26	77	58
August 27	84	54
August 28	85	55
August 29	84	58
August 30	77	56
August 31	81	56

September 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	90	59	0.00
September 2	89	62	0.00
September 3	79	60	0.00
September 4	82	63	0.00
September 5	81	61	0.00
September 6	75	58	0.00
September 7	73	51	0.00
September 8	78	51	0.00
September 9	78	55	0.00
September 10	74	57	0.02
September 11	77	54	0.00
September 12	84	54	0.00
September 13	83	56	0.00
September 14	80	56	0.00
September 15	85	58	0.00
September 16	83	58	0.00
September 17	81	53	0.00
September 18	72	51	0.00
September 19	78	50	0.00
September 20	82	49	0.00
September 21	80	51	0.00
September 22	82	50	0.00
September 23	92	56	0.00
September 24	95	60	0.00
September 25	94	63	0.00
September 26	91	58	0.00
September 27	76	61	0.00
September 28	84	53	0.00
September 29	93	57	0.00
September 30	93	60	0.00

October 1978 San Jose Weather

Day	High (°F)	Low (°F)
October 1	86	58
October 2	92	58
October 3	90	56
October 4	85	56
October 5	79	57
October 6	68	59
October 7	76	49
October 8	77	51
October 9	74	52
October 10	81	51
October 11	87	53
October 12	89	56
October 13	91	57
October 14	91	60
October 15	78	58
October 16	70	57
October 17	75	54
October 18	73	56
October 19	67	57
October 20	67	56
October 21	67	51
October 22	77	52
October 23	82	47
October 24	82	51
October 25	75	52
October 26	68	52
October 27	67	53
October 28	66	52
October 29	68	45
October 30	68	41
October 31	67	47

November 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	66	48	0.00
November 2	65	43	0.00
November 3	70	44	0.00
November 4	67	43	0.00
November 5	70	49	0.00
November 6	76	45	0.00
November 7	75	47	0.00
November 8	76	47	0.00
November 9	74	46	0.00
November 10	61	40	0.00
November 11	56	44	0.00
November 12	57	37	0.00
November 13	54	43	0.10
November 14	56	34	0.00
November 15	60	34	0.00
November 16	58	45	0.00
November 17	61	41	0.00
November 18	59	48	0.00
November 19	62	48	0.05
November 20	61	52	0.12
November 21	59	50	0.80
November 22	56	46	0.42
November 23	58	43	0.00
November 24	59	40	0.00
November 25	58	38	0.00
November 26	59	43	0.00
November 27	60	39	0.00
November 28	61	39	0.00
November 29	63	45	0.00
November 30	61	51	0.00

December 1978 San Jose Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	59	50	0.14
December 2	58	40	0.00
December 3	59	37	0.00
December 4	60	36	0.00
December 5	58	47	0.00
December 6	53	36	0.01
December 7	49	37	0.00
December 8	50	28	0.00
December 9	51	32	0.00
December 10	56	32	0.00
December 11	59	38	0.00
December 12	59	39	0.00
December 13	61	39	0.00
December 14	59	36	0.00
December 15	63	36	0.00
December 16	60	33	0.00
December 17	58	48	0.10
December 18	54	45	0.13
December 19	52	41	0.04
December 20	52	32	0.00
December 21	51	31	0.00
December 22	55	32	0.00
December 23	54	33	0.00
December 24	51	34	0.00
December 25	51	31	0.00
December 26	51	32	0.00
December 27	55	39	0.00
December 28	51	46	0.00
December 29	51	35	0.00
December 30	49	28	0.00
December 31	55	30	0.00

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Weather Station Details

Years	Station	Coordinates
1999–2024	San Jose 2	location
1893–1998	San Jose	location