San Francisco Weather in 2009

Historical record of San Francisco, California weather for the year 2009 based on NOAA data.

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2009 San Francisco Weather Extremes
Highest temperature	96 °F	August 28
Lowest temperature	38 °F	December 9
Highest daily low	64 °F	April 21
Lowest daily high	46 °F	December 9
Most daily precipitation	2.5 inches	October 13
Total annual precipitation	19.2 inches	-

What was the hottest temperature in San Francisco in 2009?

The highest temperature recorded in San Francisco, California in 2009 was 96 °F which happened on August 28.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Francisco in 2009

Rank	Temperature	Date
1	96 °F	Aug 28
2	93 °F	Apr 20
3	89 °F	May 16
4	88 °F	Sep 2
5	87 °F	Sep 18
5	87 °F	Aug 29
5	87 °F	Apr 21
8	85 °F	Sep 26
8	85 °F	May 17
10	84 °F	Aug 10

What was the coldest temperature in San Francisco in 2009?

The lowest temperature recorded in San Francisco, California in 2009 was 38 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Francisco in 2009

Rank	Temperature	Date
1	38 °F	December 9
1	38 °F	December 8
3	39 °F	December 7
3	39 °F	January 4
5	40 °F	December 6
5	40 °F	December 2
5	40 °F	February 10
8	41 °F	January 3
9	42 °F	December 11
9	42 °F	December 10
9	42 °F	December 4
9	42 °F	March 10
9	42 °F	January 9

January 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	52	43	0.00
January 2	55	45	0.24
January 3	52	41	0.00
January 4	51	39	0.00
January 5	47	44	0.00
January 6	53	45	0.00
January 7	50	44	0.00
January 8	55	45	0.00
January 9	60	42	0.00
January 10	65	50	0.00
January 11	67	47	0.00
January 12	74	52	0.00
January 13	72	56	0.00
January 14	69	50	0.00
January 15	73	51	0.00
January 16	70	52	0.00
January 17	67	50	0.00
January 18	68	51	0.00
January 19	69	50	0.00
January 20	69	50	0.00
January 21	61	52	0.11
January 22	55	50	0.38
January 23	56	52	0.16
January 24	54	49	0.01
January 25	54	46	0.00
January 26	55	43	0.00
January 27	57	45	0.00
January 28	58	44	0.00
January 29	68	46	0.00
January 30	67	46	0.00
January 31	66	46	0.00

February 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	67	47	0.00
February 2	67	49	0.00
February 3	67	49	0.00
February 4	64	47	0.00
February 5	58	51	0.13
February 6	54	51	0.53
February 7	61	49	0.02
February 8	55	46	0.34
February 9	53	44	0.00
February 10	53	40	0.23
February 11	55	45	0.20
February 12	54	44	0.00
February 13	53	43	0.66
February 14	55	44	0.09
February 15	55	45	2.18
February 16	56	45	0.79
February 17	54	47	0.87
February 18	59	47	0.00
February 19	64	46	0.00
February 20	65	49	0.00
February 21	n/a	50	0.00
February 22	58	n/a	1.24
February 23	59	51	0.35
February 24	52	51	0.01
February 25	61	50	0.21
February 26	59	49	0.07
February 27	59	46	0.00
February 28	63	52	0.00

March 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	60	54	0.27
March 2	60	53	0.40
March 3	58	48	0.62
March 4	56	45	0.14
March 5	57	45	0.91
March 6	56	47	0.00
March 7	60	45	0.00
March 8	57	47	0.00
March 9	54	44	0.00
March 10	58	42	0.00
March 11	61	44	0.00
March 12	57	46	0.00
March 13	57	47	0.00
March 14	52	47	0.00
March 15	60	50	0.08
March 16	62	53	0.10
March 17	63	52	0.00
March 18	67	49	0.00
March 19	67	53	0.00
March 20	59	50	0.00
March 21	58	49	0.06
March 22	53	45	0.18
March 23	55	44	0.00
March 24	62	46	0.00
March 25	66	48	0.00
March 26	64	50	0.00
March 27	72	52	0.00
March 28	65	50	0.00
March 29	60	48	0.00
March 30	65	49	0.00
March 31	65	47	0.00

April 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	63	49	0.00
April 2	59	47	0.00
April 3	57	46	0.00
April 4	65	45	0.00
April 5	75	48	0.00
April 6	75	52	0.00
April 7	60	51	0.22
April 8	62	50	0.01
April 9	55	50	0.01
April 10	58	48	0.00
April 11	59	46	0.00
April 12	62	49	0.00
April 13	62	49	0.00
April 14	54	45	0.00
April 15	56	44	0.00
April 16	60	47	0.00
April 17	66	49	0.00
April 18	69	47	0.00
April 19	68	53	0.00
April 20	93	62	0.00
April 21	87	64	0.00
April 22	68	51	0.00
April 23	62	49	0.00
April 24	55	48	0.00
April 25	57	46	0.00
April 26	60	46	0.00
April 27	54	47	0.00
April 28	56	46	0.00
April 29	58	46	0.00
April 30	64	48	0.00

May 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	64	47	0.23
May 2	64	55	0.04
May 3	63	51	0.06
May 4	69	50	0.05
May 5	68	55	0.42
May 6	68	54	0.00
May 7	68	50	0.00
May 8	73	52	0.00
May 9	68	51	0.00
May 10	64	48	0.00
May 11	64	49	0.00
May 12	64	48	0.00
May 13	65	51	0.00
May 14	65	50	0.00
May 15	62	51	0.00
May 16	89	54	0.00
May 17	85	53	0.00
May 18	59	50	0.00
May 19	60	50	0.00
May 20	61	49	0.00
May 21	61	48	0.00
May 22	61	50	0.00
May 23	54	49	0.00
May 24	54	48	0.00
May 25	61	48	0.00
May 26	70	50	0.00
May 27	61	51	0.00
May 28	61	51	0.00
May 29	61	52	0.00
May 30	60	53	0.00
May 31	58	52	0.00

June 2009 San Francisco Weather

Day	High (°F)	Low (°F)
June 1	60	52
June 2	61	51
June 3	62	53
June 4	64	54
June 5	67	56
June 6	66	56
June 7	65	56
June 8	60	54
June 9	64	55
June 10	65	56
June 11	65	56
June 12	64	55
June 13	66	57
June 14	66	57
June 15	65	57
June 16	62	55
June 17	64	56
June 18	70	55
June 19	70	54
June 20	65	53
June 21	68	53
June 22	73	53
June 23	74	53
June 24	66	53
June 25	65	53
June 26	67	52
June 27	79	51
June 28	78	58
June 29	65	55
June 30	66	56

July 2009 San Francisco Weather

Day	High (°F)	Low (°F)
July 1	65	56
July 2	65	56
July 3	63	54
July 4	65	54
July 5	62	54
July 6	66	54
July 7	60	55
July 8	70	54
July 9	63	52
July 10	63	53
July 11	66	52
July 12	66	53
July 13	81	53
July 14	83	56
July 15	64	52
July 16	64	51
July 17	66	51
July 18	70	54
July 19	69	53
July 20	61	53
July 21	59	52
July 22	59	52
July 23	58	51
July 24	61	52
July 25	63	51
July 26	66	52
July 27	65	51
July 28	62	54
July 29	64	56
July 30	68	55
July 31	62	54

August 2009 San Francisco Weather

Day	High (°F)	Low (°F)
August 1	63	54
August 2	64	55
August 3	67	55
August 4	69	57
August 5	69	57
August 6	68	58
August 7	67	57
August 8	73	56
August 9	78	55
August 10	84	58
August 11	64	57
August 12	76	55
August 13	69	57
August 14	67	56
August 15	72	55
August 16	71	54
August 17	64	54
August 18	65	54
August 19	63	56
August 20	65	56
August 21	75	55
August 22	61	56
August 23	62	55
August 24	64	54
August 25	67	53
August 26	64	53
August 27	79	53
August 28	96	61
August 29	87	56
August 30	61	54
August 31	66	53

September 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	68	57	0.00
September 2	88	59	0.00
September 3	78	56	0.00
September 4	64	53	0.00
September 5	70	55	0.00
September 6	66	56	0.00
September 7	71	57	0.00
September 8	66	55	0.00
September 9	66	54	0.00
September 10	77	55	0.00
September 11	71	53	0.00
September 12	62	57	0.08
September 13	72	58	0.20
September 14	68	58	0.00
September 15	74	57	0.00
September 16	69	56	0.00
September 17	77	58	0.00
September 18	87	61	0.00
September 19	71	56	0.00
September 20	77	56	0.00
September 21	66	55	0.00
September 22	73	54	0.00
September 23	64	55	0.00
September 24	63	54	0.00
September 25	72	53	0.00
September 26	85	52	0.00
September 27	81	58	0.00
September 28	62	55	0.00
September 29	63	53	0.00
September 30	67	51	0.00

October 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	77	55	0.00
October 2	76	53	0.00
October 3	63	52	0.00
October 4	61	50	0.00
October 5	67	51	0.00
October 6	72	51	0.00
October 7	67	53	0.00
October 8	61	53	0.00
October 9	62	52	0.00
October 10	58	51	0.00
October 11	58	51	0.00
October 12	64	56	0.00
October 13	64	57	2.48
October 14	74	62	0.00
October 15	71	63	0.00
October 16	75	58	0.00
October 17	72	54	0.00
October 18	61	56	0.00
October 19	68	57	0.63
October 20	64	56	0.00
October 21	69	54	0.00
October 22	71	56	0.00
October 23	75	56	0.00
October 24	70	55	0.00
October 25	76	54	0.00
October 26	72	56	0.00
October 27	66	54	0.00
October 28	64	53	0.00
October 29	65	51	0.00
October 30	72	53	0.00
October 31	69	51	0.00

November 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	73	51	0.00
November 2	79	58	0.00
November 3	77	58	0.00
November 4	64	53	0.00
November 5	65	57	0.00
November 6	62	54	0.09
November 7	64	50	0.00
November 8	65	51	0.00
November 9	62	49	0.00
November 10	64	54	0.00
November 11	63	54	0.00
November 12	61	51	0.00
November 13	59	47	0.00
November 14	60	51	0.05
November 15	63	48	0.00
November 16	65	48	0.00
November 17	63	47	0.01
November 18	59	48	0.00
November 19	61	46	0.00
November 20	57	48	0.29
November 21	57	46	0.00
November 22	61	47	0.00
November 23	64	47	0.00
November 24	67	50	0.00
November 25	69	51	0.00
November 26	65	50	0.00
November 27	57	50	0.01
November 28	67	49	0.00
November 29	70	53	0.00
November 30	62	49	0.00

December 2009 San Francisco Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	63	45	0.00
December 2	54	40	0.00
December 3	56	45	0.00
December 4	57	42	0.00
December 5	54	47	0.00
December 6	51	40	0.30
December 7	47	39	0.25
December 8	47	38	0.00
December 9	46	38	0.00
December 10	48	42	0.10
December 11	51	42	0.50
December 12	58	48	0.59
December 13	55	51	0.08
December 14	57	50	0.00
December 15	58	49	0.00
December 16	57	49	0.23
December 17	60	50	0.00
December 18	60	50	0.00
December 19	56	47	0.00
December 20	61	48	0.02
December 21	58	49	0.16
December 22	55	45	0.00
December 23	57	43	0.00
December 24	58	44	0.00
December 25	59	44	0.00
December 26	54	46	0.41
December 27	54	48	0.01
December 28	53	47	0.00
December 29	53	43	0.11
December 30	57	46	0.01
December 31	59	49	0.00

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Weather Station Details

Years	Station	Coordinates
1921–2024	Downtown San Francisco	location