San Francisco Weather in 1970

Historical record of San Francisco, California weather for the year 1970 based on NOAA data.

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1970 San Francisco Weather Extremes
Highest temperature	92 °F	September 26
Lowest temperature	41 °F	December 25
Highest daily low	64 °F	September 28
Lowest daily high	46 °F	December 26
Most daily precipitation	1.4 inches	January 20
Most daily snow	none	-
Total annual precipitation	24.3 inches	-
Total annual snow	none	-

What was the hottest temperature in San Francisco in 1970?

The highest temperature recorded in San Francisco, California in 1970 was 92 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Francisco in 1970

Rank	Temperature	Date
1	92 °F	Sep 26
1	92 °F	Jul 2
3	91 °F	May 15
4	89 °F	Sep 27
5	87 °F	Sep 28
5	87 °F	Sep 25
7	86 °F	Oct 1
7	86 °F	Sep 24
7	86 °F	Sep 22
10	85 °F	Aug 9

What was the coldest temperature in San Francisco in 1970?

The lowest temperature recorded in San Francisco, California in 1970 was 41 °F which happened on Dec 25.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Francisco in 1970

Rank	Temperature	Date
1	41 °F	December 25
2	42 °F	December 20
2	42 °F	January 6
4	43 °F	December 26
4	43 °F	December 24
4	43 °F	December 22
4	43 °F	December 18
4	43 °F	December 13
4	43 °F	January 5
10	44 °F	December 27
10	44 °F	December 17
10	44 °F	December 14
10	44 °F	April 27
10	44 °F	April 21
10	44 °F	January 4
10	44 °F	January 3
10	44 °F	January 1

January 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	60	44	0.00
January 2	56	48	0.00
January 3	53	44	0.00
January 4	51	44	0.00
January 5	52	43	0.00
January 6	51	42	0.00
January 7	52	46	0.03
January 8	58	47	0.18
January 9	59	50	0.57
January 10	58	51	0.14
January 11	54	49	0.40
January 12	60	54	0.04
January 13	60	56	0.23
January 14	61	54	1.19
January 15	56	52	0.81
January 16	62	56	0.63
January 17	59	55	0.04
January 18	59	53	0.00
January 19	61	54	0.11
January 20	61	55	1.41
January 21	62	60	0.90
January 22	64	58	0.02
January 23	61	53	0.49
January 24	57	52	0.00
January 25	59	49	0.00
January 26	60	51	0.08
January 27	59	48	0.49
January 28	57	45	0.00
January 29	58	46	0.01
January 30	58	47	0.02
January 31	56	48	0.02

February 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	60	50	0.01
February 2	64	49	0.00
February 3	61	49	0.00
February 4	65	51	0.00
February 5	58	50	0.00
February 6	60	50	0.00
February 7	66	51	0.00
February 8	69	53	0.00
February 9	67	56	0.04
February 10	63	53	0.00
February 11	64	56	0.00
February 12	60	54	0.20
February 13	59	51	0.10
February 14	59	49	0.00
February 15	59	51	0.00
February 16	62	50	0.59
February 17	57	50	0.02
February 18	63	46	0.00
February 19	65	53	0.00
February 20	68	52	0.00
February 21	63	50	0.00
February 22	65	49	0.00
February 23	64	47	0.00
February 24	68	54	0.00
February 25	69	53	0.00
February 26	70	53	0.00
February 27	65	51	0.16
February 28	63	54	0.44

March 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	55	48	0.22
March 2	55	47	0.00
March 3	57	48	0.04
March 4	53	45	1.17
March 5	59	46	0.00
March 6	62	49	0.00
March 7	64	52	0.04
March 8	61	50	0.00
March 9	56	50	0.06
March 10	56	48	0.00
March 11	57	51	0.00
March 12	65	52	0.00
March 13	69	54	0.00
March 14	62	54	0.02
March 15	67	51	0.00
March 16	68	53	0.00
March 17	67	52	0.00
March 18	65	54	0.00
March 19	67	53	0.00
March 20	66	50	0.00
March 21	64	49	0.00
March 22	62	50	0.00
March 23	73	51	0.00
March 24	78	55	0.00
March 25	79	56	0.00
March 26	72	54	0.00
March 27	74	54	0.00
March 28	64	52	0.00
March 29	66	52	0.00
March 30	66	48	0.00
March 31	68	57	0.00

April 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	69	50	0.00
April 2	66	49	0.00
April 3	74	51	0.00
April 4	72	50	0.00
April 5	59	50	0.00
April 6	58	48	0.00
April 7	57	46	0.00
April 8	61	47	0.00
April 9	58	49	0.00
April 10	59	50	0.00
April 11	61	48	0.00
April 12	64	47	0.00
April 13	52	45	0.01
April 14	55	47	0.00
April 15	54	45	0.00
April 16	57	46	0.00
April 17	59	47	0.00
April 18	58	48	0.00
April 19	56	48	0.03
April 20	57	46	0.00
April 21	54	44	0.00
April 22	56	45	0.00
April 23	56	45	0.00
April 24	60	47	0.00
April 25	55	48	0.00
April 26	54	45	0.02
April 27	51	44	0.00
April 28	58	45	0.00
April 29	63	48	0.00
April 30	65	51	0.00

May 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	76	51	0.00
May 2	77	51	0.00
May 3	72	48	0.00
May 4	57	47	0.00
May 5	55	48	0.00
May 6	55	48	0.00
May 7	58	47	0.00
May 8	60	51	0.00
May 9	56	50	0.00
May 10	54	48	0.00
May 11	58	48	0.00
May 12	63	50	0.00
May 13	64	53	0.03
May 14	79	54	0.00
May 15	91	63	0.00
May 16	79	53	0.00
May 17	58	51	0.00
May 18	55	49	0.00
May 19	56	49	0.00
May 20	62	48	0.00
May 21	64	49	0.00
May 22	67	51	0.00
May 23	72	51	0.00
May 24	59	51	0.00
May 25	64	53	0.00
May 26	59	51	0.00
May 27	56	49	0.00
May 28	61	49	0.00
May 29	63	50	0.00
May 30	77	52	0.00
May 31	83	54	0.00

June 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	65	52	0.00
June 2	62	50	0.00
June 3	60	50	0.00
June 4	55	49	0.00
June 5	62	51	0.00
June 6	59	51	0.00
June 7	57	49	0.00
June 8	60	52	0.48
June 9	60	53	0.09
June 10	64	54	0.00
June 11	65	51	0.00
June 12	65	53	0.00
June 13	62	53	0.00
June 14	56	50	0.00
June 15	63	51	0.00
June 16	57	50	0.00
June 17	57	51	0.00
June 18	64	51	0.00
June 19	67	50	0.00
June 20	59	50	0.00
June 21	57	50	0.00
June 22	61	52	0.00
June 23	61	52	0.00
June 24	65	56	0.00
June 25	61	54	0.00
June 26	61	53	0.00
June 27	63	55	0.00
June 28	58	54	0.00
June 29	67	52	0.00
June 30	77	55	0.00

July 1970 San Francisco Weather

Day	High (°F)	Low (°F)
July 1	81	57
July 2	92	62
July 3	78	54
July 4	64	52
July 5	55	50
July 6	56	50
July 7	60	50
July 8	60	51
July 9	59	52
July 10	61	52
July 11	58	51
July 12	59	51
July 13	65	52
July 14	61	52
July 15	61	54
July 16	64	53
July 17	63	52
July 18	61	51
July 19	67	52
July 20	58	52
July 21	60	52
July 22	63	52
July 23	61	51
July 24	62	51
July 25	61	52
July 26	60	53
July 27	62	54
July 28	64	54
July 29	62	54
July 30	60	53
July 31	59	52

August 1970 San Francisco Weather

Day	High (°F)	Low (°F)
August 1	62	51
August 2	65	53
August 3	60	51
August 4	58	50
August 5	65	52
August 6	70	54
August 7	66	52
August 8	77	54
August 9	85	58
August 10	76	52
August 11	61	51
August 12	59	51
August 13	64	50
August 14	57	51
August 15	59	51
August 16	60	52
August 17	62	54
August 18	58	50
August 19	56	50
August 20	56	51
August 21	59	50
August 22	60	50
August 23	62	52
August 24	65	53
August 25	58	52
August 26	61	53
August 27	59	51
August 28	56	51
August 29	56	52
August 30	64	54
August 31	62	52

September 1970 San Francisco Weather

Day	High (°F)	Low (°F)
September 1	62	52
September 2	61	52
September 3	65	54
September 4	64	54
September 5	72	58
September 6	84	60
September 7	77	58
September 8	65	55
September 9	74	55
September 10	69	50
September 11	67	50
September 12	61	49
September 13	60	52
September 14	74	52
September 15	69	52
September 16	72	52
September 17	83	55
September 18	65	55
September 19	60	54
September 20	65	52
September 21	75	53
September 22	86	64
September 23	70	55
September 24	86	58
September 25	87	63
September 26	92	64
September 27	89	64
September 28	87	64
September 29	81	59
September 30	71	55

October 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	86	58	0.00
October 2	60	52	0.00
October 3	58	52	0.00
October 4	58	51	0.00
October 5	59	52	0.00
October 6	64	53	0.00
October 7	73	51	0.00
October 8	76	58	0.00
October 9	77	55	0.00
October 10	73	54	0.00
October 11	57	50	0.00
October 12	58	52	0.00
October 13	60	52	0.00
October 14	61	54	0.00
October 15	56	51	0.00
October 16	59	50	0.00
October 17	60	49	0.00
October 18	66	52	0.06
October 19	59	49	0.00
October 20	62	55	0.21
October 21	62	54	0.26
October 22	61	53	0.05
October 23	59	53	0.23
October 24	61	52	0.00
October 25	60	52	0.00
October 26	65	51	0.00
October 27	67	54	0.00
October 28	70	53	0.00
October 29	72	55	0.00
October 30	64	57	0.02
October 31	70	55	0.01

November 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	70	53	0.00
November 2	61	51	0.00
November 3	63	52	0.95
November 4	60	56	0.19
November 5	63	58	0.29
November 6	62	56	0.30
November 7	62	55	0.02
November 8	65	58	0.00
November 9	64	54	0.05
November 10	64	54	0.00
November 11	62	54	0.13
November 12	65	53	0.00
November 13	66	52	0.00
November 14	66	56	0.00
November 15	68	52	0.00
November 16	64	56	0.00
November 17	66	54	0.00
November 18	68	52	0.00
November 19	65	54	0.00
November 20	65	52	0.00
November 21	56	53	0.00
November 22	59	55	0.00
November 23	65	54	0.00
November 24	66	54	0.57
November 25	61	54	0.47
November 26	55	50	0.00
November 27	53	48	1.20
November 28	57	49	1.17
November 29	55	50	0.87
November 30	56	49	0.23

December 1970 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	59	52	0.69
December 2	55	45	0.43
December 3	56	48	0.56
December 4	59	56	0.36
December 5	61	55	0.03
December 6	55	53	0.02
December 7	60	53	0.11
December 8	59	51	0.19
December 9	56	49	0.00
December 10	58	46	0.00
December 11	56	48	0.00
December 12	55	45	0.00
December 13	46	43	0.27
December 14	53	44	0.00
December 15	58	49	0.68
December 16	53	46	0.24
December 17	51	44	0.18
December 18	50	43	0.25
December 19	53	46	0.00
December 20	50	42	0.77
December 21	53	45	0.10
December 22	51	43	0.00
December 23	52	45	0.00
December 24	52	43	0.00
December 25	48	41	0.02
December 26	46	43	0.23
December 27	50	44	0.05
December 28	54	46	0.11
December 29	58	51	0.10
December 30	57	46	0.00
December 31	57	48	0.00

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Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location