San Luis Obispo Weather in 1978

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

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1978 San Luis Obispo Weather Extremes
Highest temperature	105 °F	September 25
Lowest temperature	29 °F	December 7
Highest daily low	71 °F	September 25
Lowest daily high	50 °F	December 8
Most daily precipitation	4.0 inches	January 17
Most daily snow	none	-
Total annual precipitation	44.9 inches	-
Total annual snow	none	-

What was the hottest temperature in San Luis Obispo in 1978?

The highest temperature recorded in San Luis Obispo, California in 1978 was 105 °F which happened on September 25.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Luis Obispo in 1978

Rank	Temperature	Date
1	105 °F	Sep 25
2	102 °F	Sep 27
2	102 °F	Sep 26
2	102 °F	Sep 24
5	100 °F	Sep 28
6	99 °F	Sep 29
7	97 °F	Oct 13
8	96 °F	Sep 30
9	95 °F	Sep 23
10	94 °F	May 30

What was the coldest temperature in San Luis Obispo in 1978?

The lowest temperature recorded in San Luis Obispo, California in 1978 was 29 °F which happened on Dec 7.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Luis Obispo in 1978

Rank	Temperature	Date
1	29 °F	December 7
2	30 °F	December 9
2	30 °F	December 8
4	33 °F	December 2
5	34 °F	December 10
5	34 °F	April 7
7	35 °F	December 6
8	37 °F	December 26
8	37 °F	December 14
8	37 °F	May 24

January 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	61	44	0.00
January 2	63	44	0.00
January 3	53	48	0.45
January 4	60	47	0.03
January 5	58	50	0.27
January 6	61	50	2.26
January 7	62	45	0.00
January 8	68	44	0.00
January 9	69	47	1.90
January 10	59	50	2.49
January 11	61	48	0.03
January 12	63	46	0.00
January 13	60	48	0.02
January 14	69	49	0.11
January 15	59	47	3.16
January 16	58	47	0.53
January 17	60	52	3.99
January 18	60	47	0.00
January 19	62	49	0.44
January 20	60	45	0.08
January 21	62	47	0.00
January 22	64	47	0.00
January 23	61	43	0.00
January 24	58	40	0.00
January 25	61	40	0.00
January 26	66	42	0.00
January 27	68	51	0.00
January 28	68	44	0.00
January 29	71	43	0.00
January 30	71	43	0.00
January 31	65	44	0.00

February 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	61	44	0.00
February 2	60	43	0.00
February 3	68	51	0.00
February 4	74	48	0.00
February 5	69	47	0.11
February 6	64	54	0.88
February 7	61	52	0.02
February 8	61	46	1.87
February 9	62	46	3.17
February 10	56	44	2.51
February 11	53	39	0.22
February 12	56	39	1.75
February 13	51	44	0.17
February 14	57	43	0.00
February 15	59	45	0.00
February 16	59	44	0.00
February 17	61	44	0.00
February 18	62	48	0.00
February 19	66	48	0.00
February 20	70	42	0.00
February 21	69	42	0.00
February 22	71	44	0.00
February 23	76	43	0.00
February 24	69	45	0.00
February 25	57	48	0.00
February 26	69	49	0.00
February 27	62	49	0.00
February 28	60	50	0.01

March 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	68	55	0.98
March 2	68	50	0.28
March 3	60	52	1.24
March 4	59	52	2.76
March 5	60	52	1.17
March 6	62	49	0.17
March 7	65	46	n/a
March 8	68	45	0.00
March 9	65	51	0.10
March 10	55	49	0.41
March 11	59	49	0.03
March 12	57	43	0.04
March 13	59	43	0.00
March 14	62	45	0.00
March 15	66	49	0.00
March 16	77	52	0.00
March 17	85	50	0.00
March 18	85	50	0.00
March 19	80	47	0.00
March 20	70	47	0.00
March 21	66	52	0.00
March 22	69	52	0.65
March 23	64	52	0.07
March 24	64	49	0.03
March 25	69	46	0.00
March 26	78	50	0.00
March 27	74	52	0.00
March 28	65	51	0.00
March 29	71	53	0.00
March 30	57	53	0.07
March 31	63	50	0.09

April 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	64	43	0.06
April 2	60	43	0.01
April 3	63	43	0.00
April 4	62	46	0.56
April 5	61	47	0.02
April 6	62	45	0.00
April 7	53	34	0.62
April 8	58	39	0.17
April 9	61	41	0.00
April 10	68	45	0.00
April 11	69	49	0.00
April 12	63	50	0.00
April 13	57	49	0.00
April 14	63	52	0.00
April 15	59	50	0.45
April 16	58	39	1.70
April 17	59	42	0.06
April 18	66	47	0.00
April 19	69	48	0.00
April 20	65	47	0.00
April 21	63	43	0.00
April 22	64	41	0.00
April 23	70	50	0.00
April 24	74	51	0.00
April 25	63	51	0.33
April 26	63	50	0.37
April 27	63	50	0.02
April 28	70	50	0.00
April 29	72	47	0.00
April 30	65	48	0.00

May 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)
May 1	63	44
May 2	65	45
May 3	71	47
May 4	75	47
May 5	76	47
May 6	70	42
May 7	73	49
May 8	80	51
May 9	85	51
May 10	75	49
May 11	66	45
May 12	75	51
May 13	87	62
May 14	91	n/a
May 15	76	53
May 16	67	50
May 17	74	53
May 18	85	51
May 19	83	50
May 20	82	51
May 21	69	51
May 22	65	48
May 23	63	40
May 24	63	37
May 25	64	45
May 26	66	47
May 27	69	50
May 28	86	59
May 29	85	53
May 30	94	50
May 31	83	50

June 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	69	53	0.00
June 2	66	55	0.00
June 3	71	47	0.00
June 4	67	50	0.00
June 5	76	50	0.00
June 6	n/a	n/a	0.00
June 7	86	49	0.00
June 8	90	49	0.00
June 9	77	49	0.00
June 10	82	47	0.00
June 11	76	52	0.00
June 12	80	48	0.00
June 13	84	48	0.00
June 14	79	41	0.00
June 15	70	45	0.00
June 16	73	48	0.00
June 17	73	n/a	0.00
June 18	74	43	0.00
June 19	78	48	0.00
June 20	69	50	0.00
June 21	72	47	0.00
June 22	77	47	0.00
June 23	72	n/a	0.00
June 24	78	47	0.00
June 25	77	51	0.00
June 26	70	48	0.00
June 27	65	50	0.07
June 28	69	54	0.00
June 29	79	55	0.00
June 30	72	54	0.00

July 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)
July 1	77	55
July 2	68	45
July 3	74	52
July 4	73	51
July 5	67	51
July 6	79	52
July 7	72	53
July 8	74	52
July 9	79	51
July 10	79	52
July 11	69	52
July 12	67	52
July 13	74	53
July 14	87	58
July 15	91	52
July 16	78	50
July 17	75	50
July 18	79	49
July 19	80	49
July 20	74	50
July 21	73	50
July 22	77	50
July 23	81	52
July 24	78	52
July 25	80	53
July 26	79	53
July 27	74	53
July 28	76	52
July 29	75	51
July 30	73	52
July 31	73	50

August 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	n/a	n/a	n/a
August 2	n/a	n/a	n/a
August 3	n/a	n/a	n/a
August 4	n/a	n/a	n/a
August 5	n/a	n/a	n/a
August 6	n/a	n/a	n/a
August 7	n/a	n/a	n/a
August 8	n/a	n/a	n/a
August 9	n/a	n/a	n/a
August 10	n/a	n/a	n/a
August 11	n/a	n/a	n/a
August 12	n/a	n/a	n/a
August 13	n/a	n/a	n/a
August 14	n/a	n/a	n/a
August 15	n/a	n/a	n/a
August 16	n/a	n/a	n/a
August 17	n/a	n/a	n/a
August 18	n/a	n/a	n/a
August 19	n/a	n/a	n/a
August 20	n/a	n/a	n/a
August 21	n/a	n/a	n/a
August 22	n/a	n/a	n/a
August 23	n/a	n/a	n/a
August 24	n/a	n/a	n/a
August 25	n/a	n/a	n/a
August 26	n/a	n/a	n/a
August 27	n/a	n/a	n/a
August 28	n/a	n/a	n/a
August 29	n/a	n/a	n/a
August 30	n/a	n/a	n/a
August 31	n/a	n/a	n/a

September 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	75	50	0.00
September 2	84	51	0.00
September 3	76	n/a	0.00
September 4	78	52	0.00
September 5	66	55	1.14
September 6	73	58	0.02
September 7	71	55	0.00
September 8	70	56	0.00
September 9	82	54	0.00
September 10	72	51	0.00
September 11	70	57	0.00
September 12	83	60	0.00
September 13	86	53	0.00
September 14	77	54	0.02
September 15	71	54	0.00
September 16	77	51	0.00
September 17	78	52	0.00
September 18	69	57	0.00
September 19	71	54	0.00
September 20	81	54	0.00
September 21	86	55	0.00
September 22	88	56	0.00
September 23	95	64	0.00
September 24	102	67	0.00
September 25	105	71	0.00
September 26	102	65	0.00
September 27	102	65	0.00
September 28	100	55	0.00
September 29	99	67	0.00
September 30	96	54	0.00

October 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)
October 1	87	50
October 2	81	49
October 3	79	50
October 4	71	51
October 5	75	51
October 6	70	50
October 7	70	49
October 8	76	48
October 9	73	47
October 10	74	52
October 11	93	57
October 12	93	56
October 13	97	55
October 14	87	57
October 15	81	52
October 16	78	53
October 17	77	47
October 18	72	51
October 19	73	50
October 20	72	50
October 21	70	49
October 22	69	51
October 23	80	46
October 24	89	45
October 25	85	45
October 26	71	47
October 27	70	46
October 28	67	49
October 29	72	45
October 30	67	46
October 31	69	39

November 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	69	39	0.00
November 2	69	43	0.00
November 3	70	45	0.00
November 4	78	52	0.00
November 5	82	51	0.00
November 6	78	48	0.00
November 7	82	42	0.00
November 8	89	53	0.00
November 9	87	45	0.00
November 10	66	43	0.00
November 11	57	44	0.22
November 12	50	39	0.46
November 13	57	42	0.26
November 14	59	45	0.00
November 15	59	44	0.00
November 16	66	39	0.00
November 17	65	39	0.00
November 18	66	46	0.00
November 19	71	49	0.00
November 20	63	40	0.00
November 21	62	44	0.48
November 22	57	49	0.91
November 23	59	40	0.10
November 24	59	41	0.00
November 25	66	38	0.00
November 26	59	39	0.00
November 27	60	44	0.00
November 28	66	39	0.00
November 29	68	40	0.00
November 30	71	45	0.00

December 1978 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	75	43	0.00
December 2	58	33	0.26
December 3	61	44	0.00
December 4	65	41	0.00
December 5	68	44	0.00
December 6	61	35	0.00
December 7	53	29	0.00
December 8	50	30	0.00
December 9	55	30	0.00
December 10	57	34	0.00
December 11	66	47	0.00
December 12	71	43	0.00
December 13	72	39	0.00
December 14	69	37	0.00
December 15	73	41	0.00
December 16	69	40	0.00
December 17	62	40	0.08
December 18	54	46	0.78
December 19	52	41	1.12
December 20	55	40	0.00
December 21	58	42	0.00
December 22	57	38	0.00
December 23	64	48	0.00
December 24	64	38	0.00
December 25	68	38	0.00
December 26	71	37	0.00
December 27	69	40	0.00
December 28	56	40	0.00
December 29	55	42	0.00
December 30	51	39	0.00
December 31	55	39	0.00

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Weather Station Details

Years	Station	Coordinates
1999–2024	San Luis Obispo Airport	location
1893–1998	San Luis Obispo Poly	location