San Luis Obispo Weather in 1991

Historical record of San Luis Obispo, California weather for the year 1991 based on NOAA data.

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1991 San Luis Obispo Weather Extremes
Highest temperature	101 °F	October 3
Lowest temperature	32 °F	January 30
Highest daily low	69 °F	July 1
Lowest daily high	52 °F	March 27
Most daily precipitation	2.5 inches	March 19
Most daily snow	none	-
Total annual precipitation	22.8 inches	-
Total annual snow	none	-

What was the hottest temperature in San Luis Obispo in 1991?

The highest temperature recorded in San Luis Obispo, California in 1991 was 101 °F which happened on October 3.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Luis Obispo in 1991

Rank	Temperature	Date
1	101 °F	Oct 3
2	96 °F	Jul 2
3	95 °F	Oct 13
3	95 °F	Jul 1
5	94 °F	Sep 2
5	94 °F	Aug 13
5	94 °F	Aug 10
8	93 °F	Oct 20
9	92 °F	Oct 21
10	91 °F	Oct 9

What was the coldest temperature in San Luis Obispo in 1991?

The lowest temperature recorded in San Luis Obispo, California in 1991 was 32 °F which happened on Jan 30.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Luis Obispo in 1991

Rank	Temperature	Date
1	32 °F	January 30
2	33 °F	December 3
2	33 °F	December 2
4	34 °F	December 1
4	34 °F	January 23
6	35 °F	December 27
6	35 °F	December 26
6	35 °F	December 25
6	35 °F	December 24
6	35 °F	December 23
6	35 °F	December 22
6	35 °F	December 21
6	35 °F	December 6
6	35 °F	March 16
6	35 °F	March 14
6	35 °F	February 9
6	35 °F	January 29
6	35 °F	January 24

January 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	65	40	0.00
January 2	74	39	0.00
January 3	66	40	0.02
January 4	54	46	0.31
January 5	63	46	0.00
January 6	65	39	0.00
January 7	65	39	0.00
January 8	62	44	0.00
January 9	64	44	0.30
January 10	57	43	0.13
January 11	60	41	0.00
January 12	65	43	0.00
January 13	69	51	0.00
January 14	68	52	0.00
January 15	66	44	0.00
January 16	65	40	0.00
January 17	63	44	0.00
January 18	74	39	0.00
January 19	71	41	0.00
January 20	64	39	0.00
January 21	67	39	0.01
January 22	66	41	0.00
January 23	68	34	0.00
January 24	68	35	0.00
January 25	63	n/a	0.00
January 26	60	43	0.03
January 27	63	36	0.01
January 28	66	36	0.00
January 29	60	35	0.00
January 30	67	32	0.00
January 31	68	n/a	0.00

February 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	64	36	0.00
February 2	75	39	0.00
February 3	57	46	0.21
February 4	68	41	0.00
February 5	68	42	0.03
February 6	66	52	0.00
February 7	78	48	0.00
February 8	82	42	0.00
February 9	76	35	0.00
February 10	70	36	0.00
February 11	70	40	0.00
February 12	74	45	0.00
February 13	78	54	0.00
February 14	79	60	0.00
February 15	86	54	0.00
February 16	72	51	0.00
February 17	65	46	0.00
February 18	63	49	0.00
February 19	n/a	n/a	0.00
February 20	81	40	0.00
February 21	84	44	0.00
February 22	73	44	0.00
February 23	70	45	0.00
February 24	75	43	0.00
February 25	68	44	0.00
February 26	68	45	0.00
February 27	68	41	0.18
February 28	58	51	1.92

March 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	58	52	1.56
March 2	61	47	0.05
March 3	66	47	0.00
March 4	62	n/a	0.32
March 5	58	50	1.87
March 6	59	43	0.00
March 7	60	40	0.00
March 8	66	44	0.00
March 9	74	41	0.00
March 10	68	40	0.00
March 11	62	42	0.30
March 12	58	n/a	0.00
March 13	63	46	0.34
March 14	57	35	0.15
March 15	58	38	0.02
March 16	55	35	0.16
March 17	60	n/a	0.02
March 18	55	44	1.64
March 19	52	44	2.50
March 20	60	45	1.02
March 21	55	40	0.00
March 22	58	42	0.01
March 23	60	42	0.00
March 24	61	41	0.00
March 25	60	41	1.58
March 26	55	n/a	0.28
March 27	52	37	1.00
March 28	57	n/a	0.00
March 29	61	44	0.00
March 30	66	45	0.00
March 31	n/a	n/a	n/a

April 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	62	49	0.15
April 2	62	40	0.01
April 3	77	44	0.00
April 4	78	55	0.00
April 5	83	58	0.00
April 6	81	50	0.00
April 7	70	48	0.00
April 8	69	48	0.00
April 9	74	41	0.00
April 10	79	46	0.00
April 11	70	47	0.00
April 12	67	40	0.00
April 13	68	40	0.00
April 14	64	43	0.00
April 15	62	41	0.00
April 16	60	39	0.00
April 17	61	40	0.00
April 18	64	42	0.00
April 19	63	n/a	0.00
April 20	64	48	0.10
April 21	64	47	0.17
April 22	64	51	0.00
April 23	59	48	0.00
April 24	62	45	0.00
April 25	64	38	0.00
April 26	64	45	0.00
April 27	66	50	0.00
April 28	73	47	0.00
April 29	80	48	0.00
April 30	79	49	0.00

May 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)
May 1	75	43
May 2	59	38
May 3	62	40
May 4	63	45
May 5	80	48
May 6	83	48
May 7	76	n/a
May 8	n/a	45
May 9	80	45
May 10	62	38
May 11	67	43
May 12	n/a	n/a
May 13	69	39
May 14	66	42
May 15	67	48
May 16	80	46
May 17	69	49
May 18	66	39
May 19	60	42
May 20	68	43
May 21	67	47
May 22	66	47
May 23	68	49
May 24	71	48
May 25	73	48
May 26	74	45
May 27	65	45
May 28	66	45
May 29	66	47
May 30	66	46
May 31	63	42

June 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	73	37	0.00
June 2	71	41	0.00
June 3	70	51	0.00
June 4	67	47	0.00
June 5	74	48	0.00
June 6	69	47	0.00
June 7	70	44	0.00
June 8	71	42	0.00
June 9	71	46	0.00
June 10	77	51	0.00
June 11	74	51	0.00
June 12	73	50	0.00
June 13	70	45	0.00
June 14	70	47	0.00
June 15	72	41	0.00
June 16	70	43	0.00
June 17	76	n/a	0.00
June 18	84	50	0.00
June 19	71	48	0.00
June 20	68	47	0.00
June 21	74	42	0.00
June 22	73	42	0.00
June 23	67	46	0.00
June 24	68	50	0.00
June 25	68	47	0.00
June 26	69	52	0.00
June 27	73	52	0.00
June 28	73	52	0.62
June 29	64	55	0.18
June 30	73	57	0.00

July 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)
July 1	95	69
July 2	96	52
July 3	83	53
July 4	82	54
July 5	81	55
July 6	80	54
July 7	80	54
July 8	79	54
July 9	77	53
July 10	74	54
July 11	76	53
July 12	76	49
July 13	78	53
July 14	79	53
July 15	75	53
July 16	74	53
July 17	78	55
July 18	75	55
July 19	72	54
July 20	74	51
July 21	74	51
July 22	75	55
July 23	75	54
July 24	76	54
July 25	77	54
July 26	77	55
July 27	73	55
July 28	77	46
July 29	77	53
July 30	80	54
July 31	83	55

August 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	80	55	0.00
August 2	78	50	0.00
August 3	72	n/a	0.00
August 4	71	55	0.00
August 5	68	55	0.00
August 6	72	56	0.00
August 7	77	52	0.00
August 8	80	56	0.00
August 9	88	54	0.00
August 10	94	53	0.00
August 11	80	55	0.00
August 12	81	55	0.03
August 13	94	62	0.04
August 14	70	62	0.00
August 15	76	56	0.00
August 16	75	55	0.00
August 17	72	53	0.00
August 18	72	54	0.00
August 19	74	55	0.00
August 20	73	52	0.00
August 21	76	50	0.00
August 22	77	50	0.00
August 23	76	n/a	0.00
August 24	81	52	0.00
August 25	80	52	0.00
August 26	74	52	0.00
August 27	73	52	0.00
August 28	74	52	0.00
August 29	88	52	0.00
August 30	84	52	0.00
August 31	80	51	0.00

September 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)
September 1	79	55
September 2	94	51
September 3	82	51
September 4	80	51
September 5	77	51
September 6	81	56
September 7	78	58
September 8	75	56
September 9	77	55
September 10	67	45
September 11	75	45
September 12	76	52
September 13	77	53
September 14	76	n/a
September 15	77	53
September 16	74	n/a
September 17	77	52
September 18	81	50
September 19	77	50
September 20	79	51
September 21	79	51
September 22	81	48
September 23	84	50
September 24	87	51
September 25	89	55
September 26	86	52
September 27	75	49
September 28	83	50
September 29	84	49
September 30	82	48

October 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	81	47	0.00
October 2	90	n/a	0.00
October 3	101	48	0.00
October 4	n/a	48	0.00
October 5	78	52	0.00
October 6	72	52	0.00
October 7	78	50	0.00
October 8	85	48	0.00
October 9	91	48	0.00
October 10	83	51	0.00
October 11	88	49	0.00
October 12	84	55	0.00
October 13	95	48	0.00
October 14	85	48	0.00
October 15	82	46	0.00
October 16	83	46	0.00
October 17	75	53	0.00
October 18	75	48	0.00
October 19	85	n/a	0.00
October 20	93	55	0.00
October 21	92	56	0.00
October 22	n/a	n/a	0.00
October 23	67	55	0.00
October 24	72	44	0.00
October 25	68	43	0.00
October 26	67	47	0.08
October 27	62	43	0.36
October 28	66	49	0.00
October 29	68	42	0.00
October 30	64	42	0.00
October 31	72	40	0.00

November 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	73	41	0.00
November 2	79	42	0.00
November 3	83	44	0.00
November 4	85	44	0.00
November 5	85	45	0.00
November 6	86	45	0.00
November 7	90	58	0.00
November 8	87	55	0.00
November 9	73	52	0.00
November 10	68	52	0.00
November 11	79	51	0.00
November 12	86	51	0.00
November 13	85	50	0.00
November 14	79	48	0.00
November 15	64	40	0.00
November 16	68	38	0.00
November 17	69	38	0.00
November 18	59	38	0.58
November 19	61	37	0.00
November 20	75	37	0.00
November 21	74	44	0.00
November 22	65	51	0.00
November 23	72	45	0.00
November 24	79	45	0.00
November 25	80	55	0.00
November 26	78	54	0.00
November 27	79	43	0.00
November 28	67	44	0.00
November 29	65	36	0.00
November 30	62	38	0.00

December 1991 San Luis Obispo Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	60	34	0.00
December 2	65	33	0.00
December 3	63	33	0.00
December 4	70	36	0.00
December 5	76	41	0.00
December 6	75	35	0.00
December 7	67	37	0.03
December 8	54	45	0.18
December 9	60	48	0.00
December 10	71	48	0.00
December 11	71	45	0.00
December 12	66	39	0.00
December 13	70	41	0.00
December 14	71	37	0.00
December 15	72	37	0.00
December 16	77	39	0.00
December 17	75	39	0.00
December 18	68	39	0.06
December 19	60	39	0.02
December 20	60	39	0.00
December 21	65	35	0.00
December 22	72	35	0.00
December 23	68	35	0.00
December 24	68	35	0.00
December 25	72	35	0.00
December 26	71	35	0.00
December 27	63	35	0.00
December 28	65	48	2.43
December 29	n/a	48	0.70
December 30	55	48	1.05
December 31	60	38	0.02

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Weather Station Details

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