San Antonio Weather in 1978

Historical record of San Antonio, Texas weather for the year 1978 based on NOAA data.

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1978 San Antonio Weather Extremes
Highest temperature	101 °F	July 16
Lowest temperature	18 °F	December 10
Highest daily low	79 °F	July 7
Lowest daily high	35 °F	January 21
Most daily precipitation	5.1 inches	September 13
Most daily snow	none	-
Total annual precipitation	36.0 inches	-
Total annual snow	none	-

What was the hottest temperature in San Antonio in 1978?

The highest temperature recorded in San Antonio, Texas in 1978 was 101 °F which happened on July 16.

Highest Temperatures: All-Time By Year

Highest Temperatures in San Antonio in 1978

Rank	Temperature	Date
1	101 °F	Jul 16
2	100 °F	Jul 15
3	99 °F	Jul 20
3	99 °F	Jul 18
3	99 °F	Jul 17
3	99 °F	Jul 13
3	99 °F	Jul 12
3	99 °F	Jul 8
9	98 °F	Jul 23
9	98 °F	Jul 22
9	98 °F	Jul 21
9	98 °F	Jul 14
9	98 °F	Jul 11
9	98 °F	Jul 10
9	98 °F	Jul 7
9	98 °F	Jul 6
9	98 °F	Jul 5
9	98 °F	Jul 4
9	98 °F	Jul 3

What was the coldest temperature in San Antonio in 1978?

The lowest temperature recorded in San Antonio, Texas in 1978 was 18 °F which happened on Dec 10.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in San Antonio in 1978

Rank	Temperature	Date
1	18 °F	December 10
2	22 °F	January 20
3	23 °F	December 9
3	23 °F	February 19
5	25 °F	December 11
6	26 °F	February 22
6	26 °F	January 22
6	26 °F	January 9
6	26 °F	January 3
10	27 °F	March 5
10	27 °F	March 4
10	27 °F	February 6
10	27 °F	January 26
10	27 °F	January 19

January 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	61	31	0.02
January 2	40	29	0.00
January 3	51	26	0.00
January 4	59	47	0.00
January 5	73	51	0.00
January 6	73	43	0.00
January 7	79	56	0.00
January 8	61	37	0.00
January 9	47	26	0.00
January 10	41	33	0.00
January 11	36	31	0.28
January 12	53	35	0.01
January 13	63	36	0.00
January 14	56	32	0.00
January 15	63	30	0.00
January 16	76	34	0.17
January 17	39	28	0.00
January 18	42	33	0.14
January 19	43	27	0.00
January 20	42	22	0.00
January 21	35	28	0.00
January 22	50	26	0.00
January 23	47	34	0.01
January 24	60	42	0.01
January 25	59	30	0.00
January 26	52	27	0.00
January 27	60	35	0.00
January 28	49	32	0.00
January 29	45	35	0.00
January 30	44	35	0.01
January 31	40	36	0.03

February 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	48	37	0.00
February 2	44	36	0.00
February 3	44	35	0.00
February 4	56	32	0.00
February 5	55	30	0.00
February 6	55	27	0.08
February 7	48	36	0.84
February 8	37	32	0.01
February 9	48	32	0.00
February 10	42	31	0.00
February 11	56	35	0.20
February 12	68	47	0.33
February 13	65	41	0.00
February 14	53	29	0.00
February 15	47	40	0.13
February 16	54	41	0.00
February 17	52	31	0.17
February 18	50	30	0.00
February 19	53	23	0.00
February 20	66	29	0.00
February 21	57	30	0.00
February 22	65	26	0.00
February 23	68	33	0.00
February 24	74	32	0.00
February 25	76	50	0.00
February 26	64	41	0.00
February 27	66	56	0.00
February 28	85	59	0.00

March 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	65	48	0.00
March 2	72	54	0.00
March 3	55	32	0.00
March 4	50	27	0.00
March 5	67	27	0.00
March 6	69	54	1.00
March 7	69	45	0.00
March 8	60	40	0.00
March 9	70	31	0.00
March 10	77	36	0.00
March 11	80	52	0.00
March 12	71	46	0.00
March 13	80	49	0.00
March 14	82	42	0.00
March 15	78	48	0.00
March 16	68	43	0.00
March 17	74	34	0.00
March 18	78	38	0.00
March 19	80	52	0.00
March 20	78	62	0.00
March 21	83	61	0.00
March 22	79	63	0.00
March 23	76	62	0.65
March 24	72	50	0.06
March 25	63	43	0.00
March 26	78	41	0.00
March 27	79	41	0.00
March 28	78	45	0.00
March 29	76	50	0.00
March 30	78	56	0.00
March 31	79	58	0.00

April 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	81	62	0.00
April 2	80	63	0.00
April 3	83	68	0.00
April 4	83	68	0.00
April 5	79	67	0.00
April 6	77	64	0.00
April 7	81	63	0.00
April 8	77	68	0.02
April 9	79	69	0.00
April 10	77	56	1.44
April 11	69	53	0.02
April 12	61	52	0.01
April 13	76	44	0.00
April 14	78	48	0.00
April 15	81	63	0.00
April 16	82	64	0.00
April 17	83	66	0.00
April 18	87	55	0.00
April 19	80	50	0.00
April 20	70	53	0.06
April 21	79	43	0.00
April 22	73	56	2.07
April 23	81	59	0.00
April 24	85	64	0.00
April 25	79	60	0.00
April 26	75	52	0.00
April 27	79	50	0.00
April 28	80	61	0.00
April 29	77	68	0.00
April 30	81	70	0.00

May 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	83	70	0.00
May 2	81	57	0.60
May 3	75	53	0.00
May 4	78	46	0.00
May 5	89	58	0.00
May 6	76	72	0.08
May 7	87	72	0.00
May 8	91	68	0.00
May 9	89	61	0.00
May 10	88	68	0.02
May 11	88	72	0.03
May 12	93	73	0.00
May 13	85	62	0.00
May 14	87	57	0.00
May 15	90	60	0.00
May 16	90	74	0.00
May 17	90	74	0.00
May 18	89	72	0.00
May 19	87	75	0.00
May 20	77	68	0.62
May 21	79	68	0.16
May 22	86	71	0.00
May 23	86	73	0.00
May 24	88	73	0.00
May 25	87	76	0.00
May 26	89	75	0.05
May 27	90	76	0.00
May 28	88	76	0.00
May 29	89	67	0.89
May 30	88	66	0.00
May 31	88	73	0.00

June 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	86	71	0.37
June 2	91	71	0.19
June 3	87	74	0.56
June 4	88	69	0.00
June 5	90	71	0.00
June 6	92	68	2.68
June 7	87	67	0.16
June 8	93	69	0.00
June 9	89	71	0.00
June 10	89	68	0.00
June 11	93	75	0.00
June 12	92	77	0.00
June 13	92	75	0.00
June 14	92	72	0.00
June 15	91	77	0.00
June 16	92	78	0.00
June 17	92	76	0.00
June 18	92	75	0.00
June 19	93	75	0.00
June 20	93	75	0.00
June 21	92	73	0.00
June 22	92	73	0.00
June 23	96	75	0.00
June 24	97	77	0.00
June 25	97	78	0.00
June 26	96	77	0.00
June 27	95	76	0.00
June 28	92	76	0.00
June 29	94	72	0.00
June 30	94	70	0.00

July 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	95	73	0.00
July 2	97	76	0.00
July 3	98	77	0.00
July 4	98	75	0.00
July 5	98	78	0.00
July 6	98	76	0.00
July 7	98	79	0.00
July 8	99	73	0.00
July 9	97	71	0.00
July 10	98	77	0.00
July 11	98	73	0.00
July 12	99	74	0.00
July 13	99	76	0.00
July 14	98	78	0.00
July 15	100	78	0.00
July 16	101	77	0.00
July 17	99	78	0.00
July 18	99	77	0.00
July 19	96	77	0.00
July 20	99	76	0.00
July 21	98	74	0.00
July 22	98	78	0.00
July 23	98	77	0.00
July 24	96	74	0.00
July 25	95	76	0.00
July 26	97	75	0.00
July 27	97	75	0.00
July 28	89	73	0.58
July 29	95	74	0.00
July 30	92	75	0.00
July 31	76	70	0.85

August 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	81	71	3.87
August 2	89	75	0.13
August 3	91	75	0.00
August 4	90	74	0.00
August 5	94	74	0.00
August 6	91	72	0.16
August 7	92	71	0.00
August 8	91	73	0.00
August 9	92	72	0.00
August 10	92	73	0.00
August 11	92	74	0.00
August 12	93	74	0.00
August 13	94	77	0.00
August 14	94	77	0.00
August 15	97	76	0.00
August 16	94	76	0.00
August 17	95	76	0.00
August 18	97	78	0.00
August 19	94	76	0.00
August 20	94	74	0.00
August 21	94	72	0.00
August 22	93	74	0.00
August 23	93	70	0.00
August 24	95	74	0.00
August 25	93	74	0.00
August 26	94	73	0.00
August 27	93	73	0.00
August 28	97	72	0.00
August 29	90	72	0.00
August 30	88	70	0.13
August 31	88	72	0.68

September 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	88	73	0.04
September 2	89	72	0.00
September 3	92	71	0.00
September 4	92	70	0.43
September 5	88	69	0.00
September 6	88	70	0.00
September 7	83	71	2.51
September 8	84	72	0.10
September 9	88	74	0.08
September 10	82	74	0.28
September 11	86	74	0.10
September 12	89	77	0.00
September 13	83	71	5.13
September 14	86	75	0.00
September 15	90	78	0.00
September 16	89	77	0.00
September 17	89	76	0.00
September 18	89	76	0.00
September 19	89	75	0.00
September 20	89	75	0.00
September 21	87	71	0.00
September 22	85	67	0.09
September 23	77	71	0.00
September 24	87	71	0.00
September 25	85	63	0.00
September 26	82	64	0.00
September 27	72	67	0.10
September 28	80	65	0.00
September 29	86	60	0.00
September 30	89	58	0.00

October 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	88	61	0.00
October 2	86	67	0.00
October 3	87	70	0.00
October 4	86	66	0.00
October 5	87	71	0.00
October 6	73	66	0.00
October 7	78	64	0.00
October 8	69	60	0.24
October 9	79	59	0.00
October 10	85	64	0.00
October 11	87	70	0.00
October 12	85	69	0.00
October 13	86	65	0.00
October 14	75	48	0.00
October 15	80	42	0.00
October 16	83	49	0.00
October 17	81	49	0.00
October 18	81	51	0.00
October 19	83	48	0.00
October 20	85	50	0.00
October 21	83	48	0.00
October 22	84	64	0.00
October 23	84	63	0.00
October 24	69	56	0.00
October 25	75	62	0.31
October 26	70	59	0.00
October 27	78	52	0.00
October 28	72	56	0.00
October 29	78	51	0.00
October 30	81	45	0.00
October 31	83	51	0.00

November 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	84	61	0.00
November 2	83	57	0.00
November 3	83	59	0.00
November 4	82	60	0.00
November 5	70	59	1.69
November 6	72	54	0.00
November 7	67	43	0.00
November 8	68	38	0.00
November 9	72	39	0.00
November 10	82	48	0.00
November 11	78	62	0.00
November 12	81	61	0.00
November 13	82	71	0.00
November 14	83	68	0.00
November 15	74	47	0.35
November 16	50	45	0.37
November 17	66	37	0.00
November 18	65	55	0.00
November 19	60	50	0.22
November 20	56	50	0.10
November 21	56	52	0.01
November 22	63	53	0.03
November 23	73	60	0.00
November 24	76	65	0.05
November 25	78	69	0.00
November 26	75	61	2.03
November 27	62	46	0.06
November 28	55	45	0.00
November 29	74	42	0.00
November 30	75	41	0.00

December 1978 San Antonio Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	78	43	0.00
December 2	82	67	0.00
December 3	73	43	0.09
December 4	62	37	0.00
December 5	73	33	0.00
December 6	65	46	0.01
December 7	46	39	0.02
December 8	39	31	0.00
December 9	43	23	0.00
December 10	45	18	0.00
December 11	60	25	0.00
December 12	59	32	0.00
December 13	59	52	0.01
December 14	55	46	0.08
December 15	65	44	0.00
December 16	76	40	0.00
December 17	59	43	0.00
December 18	65	52	0.00
December 19	69	54	0.00
December 20	78	54	0.02
December 21	63	35	0.00
December 22	65	29	0.00
December 23	69	38	0.00
December 24	65	37	0.00
December 25	70	31	0.00
December 26	64	45	0.00
December 27	59	46	0.00
December 28	58	49	0.05
December 29	68	57	0.00
December 30	64	42	0.05
December 31	44	35	0.76

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Weather Station Details

Years	Station	Coordinates
1947–2024	San Antonio International Airport	location
1893–1946	San Antonio Nursery	location