San Francisco Weather in 2020

Historical record of San Francisco, California weather for the year 2020 based on NOAA data.

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2020 San Francisco Weather Extremes
Highest temperature	100 °F	September 6
Lowest temperature	42 °F	March 16
Highest daily low	71 °F	September 6
Lowest daily high	50 °F	January 16
Most daily precipitation	1.2 inches	January 16
Total annual precipitation	7.8 inches	-

What was the hottest temperature in San Francisco in 2020?

The highest temperature recorded in San Francisco, California in 2020 was 100 °F which happened on September 6.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Francisco in 2020

Rank	Temperature	Date
1	100 °F	Sep 6
2	94 °F	Sep 28
3	93 °F	Oct 17
3	93 °F	Oct 1
5	92 °F	Oct 16
6	91 °F	Sep 7
7	90 °F	Oct 15
8	89 °F	Sep 27
8	89 °F	Sep 5
10	88 °F	Oct 2

What was the coldest temperature in San Francisco in 2020?

The lowest temperature recorded in San Francisco, California in 2020 was 42 °F which happened on Mar 16.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Francisco in 2020

Rank	Temperature	Date
1	42 °F	March 16
2	43 °F	December 30
2	43 °F	March 26
2	43 °F	February 3
2	43 °F	January 17
2	43 °F	January 16
7	44 °F	December 29
7	44 °F	December 24
7	44 °F	December 23
7	44 °F	December 19
7	44 °F	March 17
7	44 °F	February 5
7	44 °F	January 15

January 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	58	49	0.00
January 2	62	48	0.00
January 3	60	47	0.00
January 4	58	50	0.00
January 5	58	45	0.00
January 6	59	45	0.00
January 7	56	46	0.01
January 8	56	48	0.00
January 9	54	48	0.25
January 10	58	45	0.00
January 11	55	47	0.15
January 12	55	45	0.00
January 13	54	47	0.02
January 14	54	48	0.28
January 15	53	44	0.00
January 16	50	43	1.24
January 17	54	43	0.00
January 18	54	46	0.00
January 19	55	46	0.00
January 20	57	47	0.00
January 21	57	51	0.18
January 22	61	52	0.00
January 23	59	51	0.00
January 24	63	49	0.00
January 25	64	54	0.00
January 26	58	52	0.23
January 27	58	51	0.00
January 28	58	51	0.09
January 29	59	48	0.00
January 30	63	51	0.00
January 31	67	51	0.00

February 2020 San Francisco Weather

Day	High (°F)	Low (°F)
February 1	63	52
February 2	55	45
February 3	55	43
February 4	55	46
February 5	61	44
February 6	66	47
February 7	63	46
February 8	61	47
February 9	61	49
February 10	71	54
February 11	74	56
February 12	66	51
February 13	53	49
February 14	60	49
February 15	63	48
February 16	59	49
February 17	69	48
February 18	67	49
February 19	63	47
February 20	66	49
February 21	71	51
February 22	59	50
February 23	58	49
February 24	66	48
February 25	74	51
February 26	73	53
February 27	75	53
February 28	66	50
February 29	54	49

March 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	59	46	0.00
March 2	71	54	0.00
March 3	73	52	0.00
March 4	74	51	0.00
March 5	62	51	0.00
March 6	56	50	0.01
March 7	55	49	0.17
March 8	56	46	0.00
March 9	64	50	0.00
March 10	71	52	0.00
March 11	65	51	0.00
March 12	62	47	0.00
March 13	61	50	0.00
March 14	52	48	0.59
March 15	54	46	0.30
March 16	54	42	0.07
March 17	55	44	0.00
March 18	55	47	0.03
March 19	59	47	0.00
March 20	64	48	0.00
March 21	63	49	0.00
March 22	67	51	0.00
March 23	55	50	0.00
March 24	57	50	0.08
March 25	55	45	0.00
March 26	57	43	0.00
March 27	56	47	0.00
March 28	57	51	0.05
March 29	58	51	0.14
March 30	60	52	0.00
March 31	62	52	0.00

April 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	57	48	0.00
April 2	60	46	0.00
April 3	58	47	0.00
April 4	55	48	0.23
April 5	53	49	0.24
April 6	51	45	0.25
April 7	61	45	0.00
April 8	58	50	0.00
April 9	61	52	0.00
April 10	61	52	0.00
April 11	56	51	0.00
April 12	62	51	0.00
April 13	63	52	0.00
April 14	76	49	0.00
April 15	69	52	0.00
April 16	57	51	0.00
April 17	59	52	0.00
April 18	62	54	0.00
April 19	62	53	0.00
April 20	59	52	0.00
April 21	63	51	0.00
April 22	68	51	0.00
April 23	69	53	0.00
April 24	74	54	0.00
April 25	71	53	0.00
April 26	59	52	0.00
April 27	67	52	0.00
April 28	71	54	0.00
April 29	61	52	0.00
April 30	63	52	0.00

May 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	65	50	0.00
May 2	65	52	0.00
May 3	62	50	0.00
May 4	68	49	0.00
May 5	63	51	0.00
May 6	71	52	0.00
May 7	76	53	0.00
May 8	76	51	0.00
May 9	60	51	0.00
May 10	62	54	0.00
May 11	68	53	0.03
May 12	62	55	0.08
May 13	64	52	0.02
May 14	61	56	0.08
May 15	65	54	0.01
May 16	69	55	0.00
May 17	69	57	0.24
May 18	63	55	0.12
May 19	63	54	0.00
May 20	65	53	0.00
May 21	67	53	0.00
May 22	66	52	0.00
May 23	70	52	0.00
May 24	72	53	0.00
May 25	81	55	0.00
May 26	81	56	0.00
May 27	72	54	0.00
May 28	62	53	0.00
May 29	66	54	0.00
May 30	69	57	0.01
May 31	62	56	0.00

June 2020 San Francisco Weather

Day	High (°F)	Low (°F)
June 1	66	55
June 2	78	56
June 3	82	58
June 4	72	56
June 5	62	54
June 6	63	54
June 7	61	53
June 8	70	53
June 9	75	53
June 10	72	55
June 11	69	54
June 12	63	55
June 13	65	55
June 14	64	57
June 15	66	57
June 16	66	54
June 17	77	56
June 18	82	56
June 19	64	53
June 20	63	54
June 21	64	55
June 22	66	55
June 23	64	55
June 24	67	55
June 25	64	54
June 26	64	55
June 27	61	55
June 28	63	54
June 29	68	54
June 30	73	55

July 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	67	54	0.00
July 2	67	54	0.00
July 3	62	54	0.00
July 4	71	54	0.00
July 5	70	56	0.00
July 6	66	54	0.00
July 7	67	52	0.00
July 8	69	54	0.00
July 9	72	54	0.00
July 10	68	52	0.00
July 11	71	54	0.00
July 12	71	54	0.00
July 13	61	54	0.00
July 14	67	55	0.00
July 15	66	56	0.00
July 16	64	56	0.00
July 17	66	57	0.00
July 18	67	57	0.00
July 19	65	57	0.00
July 20	61	56	0.00
July 21	64	55	0.00
July 22	69	56	0.03
July 23	66	55	0.00
July 24	61	55	0.00
July 25	68	56	0.00
July 26	65	57	0.00
July 27	64	54	0.00
July 28	62	55	0.00
July 29	62	54	0.00
July 30	63	55	0.00
July 31	64	55	0.00

August 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	65	55	0.00
August 2	65	54	0.00
August 3	73	57	0.00
August 4	63	55	0.00
August 5	63	55	0.00
August 6	70	55	0.00
August 7	67	56	0.00
August 8	68	56	0.00
August 9	65	55	0.00
August 10	64	56	0.00
August 11	67	58	0.00
August 12	64	55	0.00
August 13	83	55	0.00
August 14	n/a	62	0.00
August 15	86	64	0.00
August 16	81	62	0.01
August 17	81	62	0.00
August 18	77	61	0.00
August 19	77	60	0.00
August 20	72	54	0.00
August 21	75	58	0.00
August 22	74	57	0.00
August 23	68	57	0.00
August 24	68	57	0.00
August 25	67	57	0.00
August 26	59	54	0.00
August 27	64	54	0.00
August 28	62	54	0.00
August 29	63	55	0.00
August 30	62	54	0.00
August 31	64	55	0.00

September 2020 San Francisco Weather

Day	High (°F)	Low (°F)
September 1	65	56
September 2	66	58
September 3	64	56
September 4	69	55
September 5	89	58
September 6	100	71
September 7	91	62
September 8	71	57
September 9	60	57
September 10	64	57
September 11	71	54
September 12	72	54
September 13	62	55
September 14	64	57
September 15	69	58
September 16	74	62
September 17	67	59
September 18	68	60
September 19	73	60
September 20	78	59
September 21	71	57
September 22	67	57
September 23	71	57
September 24	71	59
September 25	69	58
September 26	74	59
September 27	89	62
September 28	94	58
September 29	64	55
September 30	81	57

October 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	93	64	0.00
October 2	88	57	0.00
October 3	77	56	0.00
October 4	63	54	0.00
October 5	70	52	0.00
October 6	61	51	0.01
October 7	61	54	0.00
October 8	61	57	0.00
October 9	67	56	0.00
October 10	66	57	0.00
October 11	72	56	0.00
October 12	81	58	0.00
October 13	82	59	0.00
October 14	83	62	0.00
October 15	90	65	0.00
October 16	92	69	0.00
October 17	93	64	0.00
October 18	76	58	0.00
October 19	69	55	0.00
October 20	74	53	0.00
October 21	75	57	0.00
October 22	63	54	0.00
October 23	66	54	0.00
October 24	66	54	0.00
October 25	69	55	0.00
October 26	73	58	0.00
October 27	75	56	0.00
October 28	74	54	0.00
October 29	74	53	0.00
October 30	61	49	0.00
October 31	75	50	0.00

November 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	77	54	0.00
November 2	77	53	0.00
November 3	66	50	0.00
November 4	71	54	0.00
November 5	74	57	0.00
November 6	59	51	0.00
November 7	60	48	0.00
November 8	55	49	0.00
November 9	58	45	0.00
November 10	61	46	0.00
November 11	57	50	0.00
November 12	61	47	0.00
November 13	58	49	0.07
November 14	60	49	0.00
November 15	65	47	0.00
November 16	68	52	0.00
November 17	63	54	0.31
November 18	63	53	0.11
November 19	62	51	0.00
November 20	62	48	0.00
November 21	62	46	0.00
November 22	57	46	0.00
November 23	60	50	0.00
November 24	64	48	0.00
November 25	59	50	0.00
November 26	62	48	0.00
November 27	63	48	0.00
November 28	60	46	0.00
November 29	62	46	0.00
November 30	61	45	0.00

December 2020 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	63	46	0.00
December 2	63	47	0.00
December 3	62	48	0.00
December 4	65	48	0.00
December 5	60	48	0.00
December 6	61	48	0.00
December 7	71	49	0.00
December 8	71	50	0.00
December 9	65	49	0.00
December 10	63	49	0.00
December 11	55	48	0.32
December 12	56	51	0.12
December 13	57	49	0.75
December 14	57	46	0.00
December 15	57	48	0.00
December 16	59	47	0.00
December 17	56	49	0.39
December 18	61	45	0.00
December 19	56	44	0.00
December 20	58	45	0.00
December 21	59	46	0.00
December 22	58	48	0.00
December 23	58	44	0.00
December 24	57	44	0.00
December 25	59	48	0.33
December 26	57	51	0.00
December 27	57	47	0.00
December 28	54	47	0.11
December 29	60	44	0.00
December 30	54	43	0.03
December 31	57	48	0.02

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Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location