St. Helena Weather in 1970

Historical record of St. Helena, California weather for the year 1970 based on NOAA data.

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1970 St. Helena Weather Extremes
Highest temperature	107 °F	July 4
Lowest temperature	24 °F	January 5
Highest daily low	66 °F	September 22
Lowest daily high	43 °F	December 20
Most daily precipitation	4.0 inches	January 21
Most daily snow	none	-
Total annual precipitation	54.4 inches	-
Total annual snow	none	-

What was the hottest temperature in St. Helena in 1970?

The highest temperature recorded in St. Helena, California in 1970 was 107 °F which happened on July 4.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Helena in 1970

Rank	Temperature	Date
1	107 °F	Jul 4
2	106 °F	Jul 3
3	105 °F	Aug 9
4	104 °F	Aug 10
4	104 °F	Jul 2
6	102 °F	Jul 19
7	101 °F	Oct 1
7	101 °F	Sep 30
7	101 °F	Aug 8
10	100 °F	Sep 6
10	100 °F	May 31

What was the coldest temperature in St. Helena in 1970?

The lowest temperature recorded in St. Helena, California in 1970 was 24 °F which happened 3 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Helena in 1970

Rank	Temperature	Date
1	24 °F	January 5
1	24 °F	January 4
1	24 °F	January 3
4	25 °F	December 25
4	25 °F	January 6
6	27 °F	January 1
7	28 °F	December 24
7	28 °F	December 22
7	28 °F	December 20
10	30 °F	December 12
10	30 °F	January 29

January 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	66	27	0.00
January 2	61	31	0.00
January 3	58	24	0.00
January 4	55	24	0.00
January 5	54	24	0.00
January 6	52	25	0.00
January 7	50	38	0.02
January 8	48	42	0.56
January 9	56	45	1.85
January 10	55	45	0.12
January 11	52	45	0.27
January 12	59	49	0.11
January 13	56	52	0.99
January 14	61	52	2.63
January 15	54	47	0.51
January 16	62	50	2.74
January 17	61	43	0.17
January 18	60	47	0.00
January 19	57	47	0.87
January 20	58	48	0.64
January 21	59	57	4.00
January 22	61	56	0.36
January 23	60	56	1.19
January 24	58	47	1.72
January 25	59	38	0.00
January 26	60	42	0.00
January 27	58	45	0.97
January 28	58	31	0.00
January 29	60	30	0.00
January 30	62	37	0.03
January 31	56	36	0.00

February 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	62	37	0.00
February 2	71	35	0.00
February 3	65	34	0.00
February 4	68	38	0.00
February 5	61	41	0.00
February 6	65	40	0.00
February 7	71	36	0.00
February 8	75	39	0.00
February 9	71	43	0.00
February 10	63	45	0.00
February 11	65	48	0.03
February 12	61	46	0.36
February 13	58	48	1.55
February 14	59	38	0.01
February 15	60	38	0.00
February 16	55	41	0.92
February 17	55	36	0.17
February 18	63	31	0.00
February 19	65	48	0.00
February 20	69	40	0.00
February 21	67	32	0.00
February 22	69	33	0.00
February 23	68	31	0.00
February 24	71	40	0.00
February 25	73	37	0.00
February 26	77	38	0.00
February 27	70	37	0.00
February 28	61	50	0.25

March 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	58	45	0.92
March 2	59	31	0.00
March 3	54	34	0.00
March 4	52	41	1.26
March 5	65	32	0.02
March 6	67	34	0.00
March 7	65	42	0.01
March 8	65	43	0.23
March 9	55	35	0.39
March 10	60	32	0.02
March 11	53	43	0.01
March 12	68	41	0.00
March 13	74	42	0.00
March 14	67	52	0.06
March 15	75	41	0.00
March 16	76	49	0.00
March 17	67	40	0.00
March 18	65	50	0.00
March 19	69	34	0.00
March 20	73	32	0.00
March 21	72	32	0.00
March 22	76	35	0.00
March 23	81	37	0.00
March 24	84	41	0.00
March 25	84	49	0.00
March 26	78	44	0.00
March 27	76	52	0.00
March 28	79	38	0.00
March 29	76	51	0.00
March 30	67	42	0.00
March 31	70	44	0.00

April 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	76	36	0.00
April 2	80	37	0.00
April 3	82	48	0.00
April 4	82	35	0.00
April 5	81	37	0.00
April 6	76	34	0.00
April 7	68	35	0.00
April 8	74	38	0.00
April 9	76	42	0.00
April 10	75	52	0.00
April 11	73	35	0.00
April 12	73	37	0.00
April 13	63	45	0.00
April 14	58	34	0.05
April 15	60	32	0.00
April 16	66	31	0.00
April 17	72	34	0.00
April 18	71	33	0.00
April 19	68	44	0.01
April 20	65	34	0.00
April 21	62	36	0.00
April 22	66	31	0.04
April 23	68	31	0.00
April 24	74	39	0.00
April 25	69	44	0.00
April 26	60	45	0.02
April 27	59	32	0.10
April 28	65	31	0.00
April 29	73	35	0.00
April 30	82	42	0.00

May 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	87	44	0.00
May 2	89	43	0.00
May 3	90	44	0.00
May 4	82	43	0.00
May 5	73	47	0.00
May 6	65	48	0.00
May 7	74	38	0.00
May 8	68	50	0.00
May 9	74	50	0.00
May 10	68	45	0.00
May 11	62	44	0.03
May 12	66	37	0.00
May 13	80	51	0.02
May 14	91	50	0.00
May 15	99	56	0.00
May 16	98	51	0.00
May 17	90	48	0.00
May 18	74	47	0.00
May 19	74	44	0.00
May 20	79	40	0.00
May 21	86	44	0.00
May 22	92	47	0.00
May 23	96	47	0.00
May 24	92	54	0.00
May 25	78	51	0.00
May 26	72	52	0.00
May 27	73	49	0.00
May 28	82	50	0.00
May 29	86	45	0.00
May 30	96	48	0.00
May 31	100	58	0.00

June 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	95	52	0.00
June 2	99	51	0.00
June 3	99	49	0.00
June 4	85	49	0.00
June 5	77	51	0.00
June 6	80	51	0.00
June 7	74	48	0.00
June 8	62	47	0.19
June 9	68	52	0.15
June 10	79	52	0.01
June 11	82	49	0.00
June 12	80	51	0.00
June 13	73	57	0.00
June 14	76	53	0.00
June 15	83	45	0.00
June 16	79	50	0.00
June 17	79	48	0.00
June 18	91	44	0.00
June 19	95	52	0.00
June 20	89	52	0.00
June 21	89	50	0.00
June 22	92	57	0.00
June 23	85	54	0.00
June 24	84	54	0.00
June 25	87	52	0.00
June 26	82	50	0.00
June 27	73	54	0.00
June 28	76	52	0.00
June 29	82	49	0.00
June 30	94	51	0.00

July 1970 St. Helena Weather

Day	High (°F)	Low (°F)
July 1	98	53
July 2	104	60
July 3	106	59
July 4	107	59
July 5	85	55
July 6	81	52
July 7	88	54
July 8	89	51
July 9	80	49
July 10	84	49
July 11	86	51
July 12	91	49
July 13	95	52
July 14	92	51
July 15	85	54
July 16	90	55
July 17	97	49
July 18	95	50
July 19	102	55
July 20	91	60
July 21	85	55
July 22	89	50
July 23	85	50
July 24	84	51
July 25	88	47
July 26	87	48
July 27	87	58
July 28	90	53
July 29	90	46
July 30	84	47
July 31	82	49

August 1970 St. Helena Weather

Day	High (°F)	Low (°F)
August 1	89	51
August 2	97	49
August 3	87	50
August 4	76	54
August 5	88	47
August 6	97	50
August 7	89	50
August 8	101	49
August 9	105	53
August 10	104	52
August 11	97	49
August 12	89	49
August 13	93	54
August 14	87	50
August 15	85	54
August 16	92	53
August 17	89	48
August 18	86	50
August 19	82	46
August 20	79	45
August 21	81	48
August 22	80	49
August 23	85	45
August 24	91	43
August 25	83	44
August 26	81	49
August 27	82	48
August 28	82	53
August 29	80	52
August 30	83	51
August 31	88	46

September 1970 St. Helena Weather

Day	High (°F)	Low (°F)
September 1	85	45
September 2	87	43
September 3	87	52
September 4	81	49
September 5	85	53
September 6	100	55
September 7	96	59
September 8	90	51
September 9	97	51
September 10	98	46
September 11	96	45
September 12	85	48
September 13	77	38
September 14	82	38
September 15	89	38
September 16	93	41
September 17	95	44
September 18	87	49
September 19	78	46
September 20	78	50
September 21	86	43
September 22	95	66
September 23	90	45
September 24	93	47
September 25	92	59
September 26	98	46
September 27	98	47
September 28	97	47
September 29	95	47
September 30	101	44

October 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	101	48	0.00
October 2	91	45	0.00
October 3	80	47	0.00
October 4	80	48	0.00
October 5	77	43	0.00
October 6	78	40	0.00
October 7	76	41	0.00
October 8	86	41	0.00
October 9	90	41	0.00
October 10	89	43	0.00
October 11	82	41	0.00
October 12	74	49	0.00
October 13	73	46	0.00
October 14	73	50	0.00
October 15	73	49	0.00
October 16	74	41	0.00
October 17	72	38	0.00
October 18	68	49	0.23
October 19	67	39	0.00
October 20	65	51	0.54
October 21	60	47	0.29
October 22	66	50	0.50
October 23	56	51	0.41
October 24	65	42	0.00
October 25	66	42	0.00
October 26	66	37	0.00
October 27	70	35	0.00
October 28	73	34	0.00
October 29	78	32	0.00
October 30	61	40	0.02
October 31	76	42	0.00

November 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	80	40	0.00
November 2	77	42	0.00
November 3	64	44	0.20
November 4	60	50	1.36
November 5	62	55	0.58
November 6	67	52	1.50
November 7	n/a	49	0.04
November 8	62	53	0.01
November 9	66	57	0.10
November 10	69	48	0.00
November 11	59	49	0.24
November 12	66	39	0.00
November 13	72	35	0.00
November 14	70	41	0.00
November 15	71	39	0.00
November 16	69	43	0.00
November 17	74	39	0.00
November 18	71	39	0.00
November 19	72	40	0.00
November 20	68	35	0.00
November 21	57	44	0.00
November 22	56	51	0.01
November 23	68	49	0.02
November 24	60	53	0.26
November 25	60	56	0.44
November 26	57	40	0.46
November 27	51	42	1.12
November 28	52	45	3.53
November 29	55	44	1.28
November 30	55	40	0.81

December 1970 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	55	41	0.40
December 2	52	43	1.55
December 3	50	39	2.04
December 4	57	50	3.76
December 5	59	52	0.26
December 6	56	52	0.00
December 7	55	49	0.39
December 8	56	51	0.22
December 9	59	33	0.00
December 10	61	32	0.00
December 11	62	34	0.00
December 12	57	30	0.00
December 13	46	32	0.14
December 14	49	32	0.01
December 15	52	44	0.27
December 16	53	41	1.46
December 17	51	36	0.36
December 18	44	39	0.43
December 19	53	33	0.00
December 20	43	28	0.98
December 21	52	39	0.04
December 22	51	28	0.00
December 23	55	34	0.00
December 24	55	28	0.00
December 25	54	25	0.00
December 26	45	38	0.15
December 27	48	39	0.05
December 28	50	42	0.63
December 29	57	46	0.68
December 30	57	33	0.00
December 31	60	38	0.00

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Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location