San Luis Obispo Weather in 2009

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

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2009 San Luis Obispo Weather Extremes
Highest temperature	111 °F	August 29
Lowest temperature	29 °F	December 8
Highest daily low	68 °F	October 16
Lowest daily high	50 °F	December 7
Most daily precipitation	3.7 inches	October 13
Total annual precipitation	15.6 inches	-

What was the hottest temperature in San Luis Obispo in 2009?

The highest temperature recorded in San Luis Obispo, California in 2009 was 111 °F which happened on August 29.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Luis Obispo in 2009

Rank	Temperature	Date
1	111 °F	Aug 29
2	106 °F	Aug 28
3	105 °F	Aug 27
4	101 °F	Sep 3
4	101 °F	Apr 20
6	97 °F	Sep 26
6	97 °F	Apr 21
8	96 °F	Sep 2
8	96 °F	Apr 19
10	95 °F	Sep 1

What was the coldest temperature in San Luis Obispo in 2009?

The lowest temperature recorded in San Luis Obispo, California in 2009 was 29 °F which happened on Dec 8.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Luis Obispo in 2009

Rank	Temperature	Date
1	29 °F	December 8
2	30 °F	December 9
3	31 °F	December 6
4	32 °F	December 25
4	32 °F	December 1
4	32 °F	November 20
7	34 °F	December 24
7	34 °F	December 4
7	34 °F	November 30
7	34 °F	March 11
7	34 °F	January 4

January 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	69	42	0.00
January 2	62	43	0.01
January 3	59	41	0.00
January 4	62	34	0.00
January 5	58	36	0.00
January 6	63	44	0.00
January 7	73	42	0.00
January 8	73	39	0.00
January 9	70	41	0.00
January 10	75	36	0.00
January 11	78	44	0.00
January 12	82	47	0.00
January 13	87	46	0.00
January 14	86	40	0.00
January 15	84	39	0.00
January 16	83	39	0.00
January 17	84	39	0.00
January 18	85	40	0.00
January 19	82	41	0.00
January 20	82	42	0.00
January 21	72	54	0.00
January 22	66	54	0.02
January 23	64	55	0.34
January 24	59	52	0.06
January 25	59	44	0.05
January 26	58	36	0.00
January 27	66	39	0.00
January 28	69	40	0.00
January 29	80	42	0.00
January 30	78	44	0.00
January 31	75	37	0.00

February 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	80	43	0.00
February 2	81	41	0.00
February 3	82	38	0.00
February 4	75	36	0.00
February 5	62	51	0.54
February 6	58	51	0.94
February 7	61	46	0.13
February 8	57	45	0.32
February 9	54	41	0.33
February 10	58	38	0.00
February 11	59	37	0.14
February 12	59	38	0.00
February 13	55	38	0.75
February 14	57	37	0.01
February 15	62	47	0.00
February 16	55	50	0.82
February 17	59	46	0.11
February 18	63	38	0.00
February 19	68	37	0.00
February 20	71	39	0.00
February 21	66	39	0.00
February 22	67	53	0.36
February 23	71	48	0.18
February 24	65	42	0.00
February 25	64	45	0.00
February 26	65	43	0.00
February 27	72	46	0.00
February 28	76	45	0.00

March 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	74	50	0.01
March 2	67	57	0.04
March 3	65	54	0.58
March 4	60	41	0.05
March 5	60	36	0.00
March 6	61	39	0.00
March 7	67	41	0.00
March 8	64	40	0.00
March 9	61	43	0.00
March 10	64	39	0.00
March 11	60	34	0.00
March 12	66	37	0.00
March 13	67	42	0.00
March 14	60	46	0.00
March 15	67	40	0.00
March 16	68	47	0.00
March 17	79	55	0.00
March 18	83	57	0.00
March 19	81	49	0.00
March 20	68	46	0.00
March 21	62	52	0.05
March 22	57	42	0.22
March 23	65	42	0.00
March 24	71	45	0.00
March 25	71	46	0.00
March 26	68	48	0.00
March 27	74	45	0.00
March 28	79	44	0.00
March 29	64	48	0.00
March 30	73	44	0.00
March 31	74	41	0.00

April 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	69	43	0.00
April 2	66	46	0.00
April 3	65	38	0.00
April 4	71	38	0.00
April 5	79	37	0.00
April 6	78	40	0.00
April 7	63	44	0.48
April 8	64	47	0.02
April 9	64	43	0.00
April 10	66	47	0.00
April 11	64	43	0.00
April 12	74	46	0.00
April 13	73	49	0.00
April 14	59	44	0.00
April 15	59	36	0.00
April 16	68	39	0.00
April 17	77	43	0.00
April 18	80	46	0.00
April 19	96	50	0.00
April 20	101	54	0.00
April 21	97	57	0.00
April 22	75	51	0.00
April 23	63	55	0.00
April 24	68	46	0.00
April 25	64	38	0.00
April 26	65	40	0.00
April 27	62	45	0.00
April 28	64	44	0.00
April 29	68	46	0.00
April 30	77	47	0.00

May 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	73	53	0.06
May 2	74	55	0.07
May 3	73	55	0.00
May 4	76	57	0.00
May 5	76	58	0.01
May 6	80	55	0.00
May 7	80	55	0.00
May 8	84	53	0.00
May 9	81	50	0.00
May 10	79	47	0.00
May 11	75	50	0.00
May 12	70	49	0.00
May 13	84	52	0.00
May 14	79	52	0.00
May 15	77	52	0.00
May 16	88	50	0.00
May 17	85	53	0.00
May 18	77	53	0.00
May 19	75	54	0.00
May 20	78	50	0.00
May 21	71	49	0.00
May 22	73	52	0.00
May 23	70	53	0.00
May 24	72	54	0.00
May 25	71	53	0.00
May 26	72	53	0.00
May 27	73	52	0.00
May 28	71	56	0.00
May 29	73	57	0.01
May 30	74	58	0.00
May 31	73	57	0.00

June 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	72	56	0.00
June 2	75	57	0.00
June 3	76	54	0.00
June 4	77	51	0.00
June 5	74	57	0.23
June 6	77	57	0.00
June 7	74	56	0.00
June 8	75	54	0.00
June 9	73	58	0.00
June 10	75	60	0.01
June 11	77	59	0.00
June 12	72	59	0.00
June 13	78	57	0.00
June 14	77	53	0.00
June 15	79	61	0.00
June 16	80	57	0.00
June 17	82	59	0.00
June 18	81	57	0.00
June 19	86	57	0.00
June 20	68	56	0.00
June 21	73	51	0.00
June 22	79	48	0.00
June 23	74	55	0.00
June 24	75	57	0.00
June 25	77	57	0.00
June 26	75	56	0.00
June 27	84	54	0.00
June 28	86	55	0.00
June 29	82	57	0.00
June 30	77	59	0.00

July 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)
July 1	79	59
July 2	80	59
July 3	79	59
July 4	78	60
July 5	78	59
July 6	78	55
July 7	81	51
July 8	78	55
July 9	79	51
July 10	82	52
July 11	85	54
July 12	85	55
July 13	89	55
July 14	88	56
July 15	86	58
July 16	86	57
July 17	84	56
July 18	85	57
July 19	93	57
July 20	84	57
July 21	83	56
July 22	81	54
July 23	81	56
July 24	80	55
July 25	80	55
July 26	85	55
July 27	83	54
July 28	80	56
July 29	78	57
July 30	79	59
July 31	80	58

August 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)
August 1	79	57
August 2	80	56
August 3	78	56
August 4	83	59
August 5	82	54
August 6	79	60
August 7	84	54
August 8	78	53
August 9	83	55
August 10	81	56
August 11	80	58
August 12	83	57
August 13	92	56
August 14	81	55
August 15	78	54
August 16	76	56
August 17	76	57
August 18	79	58
August 19	74	58
August 20	78	59
August 21	83	59
August 22	79	58
August 23	81	59
August 24	79	55
August 25	80	55
August 26	84	53
August 27	105	51
August 28	106	67
August 29	111	66
August 30	87	57
August 31	84	56

September 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	95	54	0.00
September 2	96	64	0.00
September 3	101	62	0.00
September 4	83	54	0.00
September 5	80	53	0.00
September 6	82	58	0.00
September 7	83	57	0.00
September 8	82	53	0.00
September 9	82	55	0.00
September 10	89	54	0.00
September 11	81	55	0.00
September 12	76	57	0.00
September 13	75	59	0.00
September 14	78	60	0.00
September 15	89	59	0.00
September 16	91	56	0.00
September 17	84	58	0.00
September 18	88	56	0.00
September 19	80	55	0.00
September 20	79	56	0.00
September 21	82	56	0.00
September 22	82	56	0.00
September 23	89	53	0.01
September 24	86	53	0.00
September 25	81	54	0.00
September 26	97	52	0.01
September 27	89	53	0.00
September 28	74	58	0.00
September 29	76	55	0.00
September 30	82	57	0.00

October 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	94	56	0.00
October 2	87	51	0.00
October 3	68	49	0.00
October 4	66	48	0.00
October 5	74	43	0.00
October 6	79	45	0.00
October 7	77	47	0.00
October 8	68	50	0.00
October 9	68	48	0.00
October 10	66	47	0.00
October 11	68	53	0.00
October 12	68	58	0.00
October 13	67	60	3.68
October 14	70	63	0.22
October 15	82	60	0.00
October 16	94	68	0.00
October 17	89	62	0.00
October 18	76	57	0.00
October 19	69	53	0.00
October 20	75	54	0.00
October 21	79	52	0.00
October 22	82	53	0.00
October 23	88	54	0.00
October 24	83	56	0.00
October 25	87	55	0.00
October 26	81	52	0.00
October 27	68	53	0.00
October 28	67	50	0.00
October 29	69	43	0.00
October 30	75	42	0.00
October 31	83	45	0.00

November 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	85	50	0.00
November 2	85	47	0.00
November 3	83	46	0.00
November 4	63	45	0.00
November 5	68	44	0.00
November 6	72	46	0.00
November 7	71	51	0.01
November 8	76	47	0.00
November 9	72	41	0.00
November 10	77	44	0.00
November 11	73	46	0.00
November 12	60	48	0.00
November 13	63	42	0.00
November 14	66	42	0.00
November 15	73	42	0.00
November 16	72	37	0.00
November 17	68	35	0.00
November 18	65	40	0.00
November 19	75	38	0.00
November 20	63	32	0.00
November 21	65	46	0.00
November 22	68	41	0.00
November 23	74	45	0.00
November 24	75	38	0.00
November 25	78	38	0.00
November 26	77	38	0.00
November 27	60	44	0.00
November 28	63	40	0.00
November 29	73	37	0.00
November 30	74	34	0.00

December 2009 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	62	32	0.00
December 2	60	48	0.00
December 3	67	40	0.00
December 4	71	34	0.01
December 5	57	39	0.00
December 6	55	31	0.01
December 7	50	37	1.07
December 8	53	29	0.00
December 9	56	30	0.00
December 10	55	43	0.95
December 11	61	53	0.07
December 12	59	50	1.73
December 13	59	47	0.56
December 14	61	43	0.00
December 15	64	40	0.00
December 16	64	37	0.00
December 17	69	42	0.00
December 18	68	53	0.00
December 19	74	46	0.00
December 20	68	44	0.00
December 21	61	44	0.10
December 22	57	44	0.02
December 23	62	39	0.00
December 24	65	34	0.00
December 25	65	32	0.00
December 26	57	38	0.03
December 27	61	45	0.06
December 28	61	42	0.00
December 29	62	40	0.00
December 30	60	44	0.11
December 31	65	39	0.01

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Weather Station Details

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