San Luis Obispo Weather in 1999

Historical record of San Luis Obispo, California weather for the year 1999 based on NOAA data.

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1999 San Luis Obispo Weather Extremes
Highest temperature	99 °F	October 9
Lowest temperature	29 °F	February 12
Highest daily low	62 °F	July 13
Lowest daily high	46 °F	March 15
Most daily precipitation	1.2 inches	April 11
Total annual precipitation	12.0 inches	-

What was the hottest temperature in San Luis Obispo in 1999?

The highest temperature recorded in San Luis Obispo, California in 1999 was 99 °F which happened on October 9.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Luis Obispo in 1999

Rank	Temperature	Date
1	99 °F	Oct 9
2	98 °F	Sep 30
3	94 °F	Oct 8
4	92 °F	Oct 31
5	91 °F	Oct 10
5	91 °F	Sep 29
5	91 °F	Sep 22
5	91 °F	Jul 13
5	91 °F	Jul 12
10	90 °F	Oct 21
10	90 °F	Aug 31

What was the coldest temperature in San Luis Obispo in 1999?

The lowest temperature recorded in San Luis Obispo, California in 1999 was 29 °F which happened on Feb 12.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Luis Obispo in 1999

Rank	Temperature	Date
1	29 °F	February 12
2	30 °F	April 4
2	30 °F	January 9
4	31 °F	January 29
4	31 °F	January 5
6	32 °F	December 9
6	32 °F	December 4
6	32 °F	April 2
6	32 °F	March 7
6	32 °F	January 3

January 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	73	39	0.00
January 2	75	34	0.00
January 3	73	32	0.00
January 4	78	34	0.00
January 5	77	31	0.00
January 6	68	34	0.00
January 7	59	36	0.00
January 8	71	34	0.01
January 9	77	30	0.00
January 10	76	33	0.00
January 11	75	42	0.00
January 12	68	38	0.00
January 13	65	37	0.00
January 14	75	37	0.00
January 15	72	41	0.00
January 16	63	45	0.00
January 17	65	45	0.00
January 18	59	50	0.00
January 19	58	52	0.43
January 20	60	54	0.32
January 21	63	45	0.00
January 22	65	40	0.00
January 23	58	42	0.27
January 24	52	44	0.09
January 25	55	39	0.07
January 26	53	41	0.38
January 27	57	36	0.00
January 28	64	33	0.00
January 29	67	31	0.00
January 30	57	33	0.05
January 31	56	45	0.65

February 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	60	42	0.00
February 2	67	36	0.00
February 3	72	38	0.00
February 4	57	37	0.00
February 5	58	44	0.01
February 6	56	44	0.02
February 7	57	49	0.25
February 8	59	54	0.17
February 9	56	39	0.61
February 10	55	40	0.00
February 11	61	35	0.00
February 12	66	29	0.00
February 13	62	33	0.00
February 14	59	35	0.00
February 15	62	37	0.00
February 16	61	40	0.00
February 17	67	45	0.02
February 18	62	43	0.00
February 19	68	42	0.00
February 20	67	37	0.11
February 21	59	40	0.00
February 22	66	44	0.00
February 23	75	41	0.00
February 24	64	34	0.00
February 25	62	45	0.06
February 26	65	42	0.00
February 27	73	39	0.00
February 28	73	46	0.00

March 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	69	45	0.00
March 2	70	41	0.00
March 3	66	37	0.01
March 4	60	40	0.00
March 5	64	33	0.00
March 6	55	35	0.00
March 7	57	32	0.00
March 8	58	34	0.04
March 9	56	43	0.22
March 10	56	37	0.00
March 11	60	37	0.24
March 12	68	36	0.00
March 13	62	35	0.00
March 14	61	40	0.15
March 15	46	43	0.71
March 16	55	41	0.00
March 17	62	37	0.00
March 18	54	45	0.00
March 19	54	45	1.16
March 20	55	43	0.45
March 21	60	47	0.04
March 22	59	39	0.00
March 23	58	40	0.09
March 24	63	37	0.07
March 25	60	50	0.85
March 26	63	46	0.00
March 27	63	49	0.00
March 28	70	42	0.00
March 29	70	41	0.00
March 30	59	40	0.00
March 31	54	41	0.12

April 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	58	40	0.00
April 2	60	32	0.00
April 3	54	34	0.01
April 4	58	30	0.00
April 5	53	36	0.39
April 6	54	41	0.35
April 7	57	36	0.02
April 8	54	36	0.15
April 9	56	34	0.01
April 10	60	37	0.00
April 11	52	37	1.17
April 12	61	37	0.00
April 13	63	49	0.00
April 14	82	46	0.00
April 15	83	46	0.01
April 16	87	48	0.00
April 17	84	44	0.00
April 18	77	43	0.00
April 19	76	44	0.00
April 20	68	48	0.00
April 21	61	47	0.00
April 22	62	42	0.00
April 23	70	36	0.00
April 24	62	41	0.00
April 25	64	51	0.00
April 26	66	47	0.00
April 27	61	45	0.00
April 28	57	44	0.00
April 29	65	39	0.00
April 30	64	44	0.00

May 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)
May 1	64	41
May 2	63	49
May 3	62	48
May 4	64	41
May 5	80	43
May 6	71	41
May 7	68	46
May 8	64	43
May 9	67	38
May 10	68	45
May 11	70	48
May 12	72	45
May 13	65	40
May 14	65	38
May 15	61	35
May 16	66	39
May 17	74	42
May 18	77	44
May 19	66	49
May 20	61	42
May 21	69	39
May 22	63	49
May 23	66	49
May 24	67	44
May 25	69	51
May 26	67	52
May 27	67	51
May 28	64	51
May 29	62	52
May 30	67	45
May 31	68	43

June 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	63	42	0.00
June 2	58	51	0.00
June 3	62	47	0.00
June 4	66	42	0.00
June 5	71	51	0.00
June 6	67	41	0.00
June 7	67	38	0.00
June 8	67	38	0.00
June 9	65	39	0.00
June 10	68	45	0.00
June 11	72	44	0.01
June 12	75	49	0.00
June 13	72	46	0.00
June 14	77	51	0.00
June 15	69	51	0.00
June 16	73	50	0.00
June 17	76	51	0.00
June 18	74	50	0.00
June 19	72	48	0.00
June 20	70	46	0.00
June 21	67	51	0.00
June 22	74	54	0.00
June 23	75	52	0.00
June 24	75	53	0.00
June 25	73	47	0.00
June 26	70	43	0.00
June 27	74	46	0.00
June 28	75	49	0.00
June 29	79	51	0.00
June 30	77	52	0.00

July 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)
July 1	73	54
July 2	68	55
July 3	70	49
July 4	74	44
July 5	86	50
July 6	74	52
July 7	80	49
July 8	82	52
July 9	83	52
July 10	78	54
July 11	85	53
July 12	91	60
July 13	91	62
July 14	84	58
July 15	74	58
July 16	74	57
July 17	74	55
July 18	72	54
July 19	71	55
July 20	70	56
July 21	72	56
July 22	72	55
July 23	72	56
July 24	74	53
July 25	71	49
July 26	71	54
July 27	72	55
July 28	70	55
July 29	73	47
July 30	74	52
July 31	70	49

August 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	74	46	0.00
August 2	n/a	n/a	0.00
August 3	83	52	0.00
August 4	75	52	0.00
August 5	70	57	0.02
August 6	71	53	0.00
August 7	72	52	0.00
August 8	72	58	0.00
August 9	74	57	0.00
August 10	71	57	0.00
August 11	74	52	0.00
August 12	78	53	0.00
August 13	77	50	0.00
August 14	79	50	0.00
August 15	74	45	0.00
August 16	75	55	0.00
August 17	74	55	0.00
August 18	72	51	0.00
August 19	80	48	0.00
August 20	81	48	0.01
August 21	78	51	0.00
August 22	79	49	0.00
August 23	79	52	0.00
August 24	77	50	0.00
August 25	82	52	0.00
August 26	84	55	0.00
August 27	77	53	0.00
August 28	77	54	0.00
August 29	78	54	0.00
August 30	76	53	0.00
August 31	90	48	0.00

September 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	72	43	0.00
September 2	74	51	0.00
September 3	72	51	0.00
September 4	74	55	0.00
September 5	75	53	0.00
September 6	72	54	0.00
September 7	77	51	0.00
September 8	82	51	0.00
September 9	75	52	0.00
September 10	73	50	0.00
September 11	74	46	0.00
September 12	73	54	0.00
September 13	71	55	0.00
September 14	71	56	0.00
September 15	72	56	0.00
September 16	72	54	0.00
September 17	72	55	0.00
September 18	64	55	0.00
September 19	70	49	0.00
September 20	76	44	0.00
September 21	73	46	0.00
September 22	91	55	0.18
September 23	80	58	0.00
September 24	72	55	0.00
September 25	75	54	0.00
September 26	77	53	0.00
September 27	75	52	0.01
September 28	77	51	0.01
September 29	91	48	0.00
September 30	98	49	0.00

October 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	77	47	0.01
October 2	71	51	0.00
October 3	70	52	0.00
October 4	n/a	n/a	n/a
October 5	n/a	n/a	n/a
October 6	74	55	0.00
October 7	86	50	0.00
October 8	94	48	0.00
October 9	99	52	0.00
October 10	91	52	0.00
October 11	86	47	0.00
October 12	86	50	0.01
October 13	76	51	0.00
October 14	70	52	0.00
October 15	70	54	0.00
October 16	75	49	0.00
October 17	77	46	0.01
October 18	83	43	0.00
October 19	79	46	0.01
October 20	86	43	0.00
October 21	90	44	0.00
October 22	74	49	0.01
October 23	69	45	0.00
October 24	76	44	0.01
October 25	73	49	0.01
October 26	68	50	0.00
October 27	71	51	0.00
October 28	69	57	0.00
October 29	81	51	0.00
October 30	86	44	0.00
October 31	92	44	0.00

November 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	89	47	0.00
November 2	74	40	0.00
November 3	68	48	0.00
November 4	74	43	0.00
November 5	70	52	0.00
November 6	70	51	0.00
November 7	71	53	1.15
November 8	69	49	0.01
November 9	70	45	0.01
November 10	70	41	0.00
November 11	69	41	0.02
November 12	77	41	0.01
November 13	72	43	0.01
November 14	66	47	0.01
November 15	72	52	0.00
November 16	66	53	0.12
November 17	65	44	0.00
November 18	66	41	0.00
November 19	67	40	0.49
November 20	65	51	0.01
November 21	64	46	0.00
November 22	66	41	0.00
November 23	67	36	0.00
November 24	70	40	0.00
November 25	75	43	0.00
November 26	76	45	0.00
November 27	72	42	0.00
November 28	64	45	0.01
November 29	64	46	0.00
November 30	62	41	0.00

December 1999 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	67	42	0.00
December 2	66	46	0.00
December 3	63	38	0.00
December 4	67	32	0.00
December 5	69	35	0.00
December 6	70	35	0.00
December 7	63	48	0.00
December 8	64	36	0.00
December 9	53	32	0.08
December 10	56	36	0.00
December 11	64	33	0.00
December 12	71	33	0.00
December 13	62	38	0.00
December 14	62	43	0.00
December 15	71	41	0.00
December 16	73	37	0.00
December 17	79	38	0.00
December 18	73	49	0.00
December 19	75	45	0.00
December 20	80	41	0.00
December 21	76	37	0.00
December 22	69	35	0.00
December 23	79	42	0.00
December 24	76	40	0.00
December 25	79	35	0.00
December 26	77	37	0.00
December 27	75	38	0.00
December 28	77	36	0.00
December 29	77	36	0.00
December 30	59	34	0.00
December 31	59	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