St. Helena Weather in 1977

Historical record of St. Helena, California weather for the year 1977 based on NOAA data.

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1977 St. Helena Weather Extremes
Highest temperature	109 °F	July 30
Lowest temperature	25 °F	January 9
Highest daily low	65 °F	August 31
Lowest daily high	49 °F	March 16
Most daily precipitation	5.2 inches	November 21
Most daily snow	none	-
Total annual precipitation	21.3 inches	-
Total annual snow	none	-

What was the hottest temperature in St. Helena in 1977?

The highest temperature recorded in St. Helena, California in 1977 was 109 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Helena in 1977

Rank	Temperature	Date
1	109 °F	Jul 30
1	109 °F	Jul 29
3	106 °F	Jun 21
4	104 °F	Aug 29
5	103 °F	Aug 28
5	103 °F	Jun 22
7	102 °F	Aug 1
7	102 °F	Jun 5
9	101 °F	Sep 8
9	101 °F	Sep 6
9	101 °F	Sep 5
9	101 °F	Jul 31
9	101 °F	Jul 27
9	101 °F	Jul 16

What was the coldest temperature in St. Helena in 1977?

The lowest temperature recorded in St. Helena, California in 1977 was 25 °F which happened on Jan 9.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Helena in 1977

Rank	Temperature	Date
1	25 °F	January 9
2	26 °F	November 20
2	26 °F	January 8
2	26 °F	January 7
5	27 °F	March 14
6	29 °F	December 19
6	29 °F	February 2
6	29 °F	January 10
9	30 °F	December 31
9	30 °F	December 20
9	30 °F	March 13
9	30 °F	January 29
9	30 °F	January 26
9	30 °F	January 25
9	30 °F	January 18
9	30 °F	January 17
9	30 °F	January 11

January 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	50	32	0.14
January 2	57	44	2.03
January 3	56	36	0.07
January 4	58	32	0.00
January 5	50	34	0.00
January 6	59	36	0.00
January 7	56	26	0.00
January 8	56	26	0.00
January 9	58	25	0.00
January 10	59	29	0.00
January 11	53	30	0.00
January 12	51	40	0.26
January 13	49	34	0.00
January 14	56	34	0.00
January 15	51	32	0.00
January 16	51	33	0.00
January 17	55	30	0.00
January 18	49	30	0.00
January 19	56	31	0.00
January 20	57	36	0.00
January 21	55	44	0.05
January 22	66	41	0.00
January 23	70	35	0.00
January 24	67	34	0.00
January 25	65	30	0.00
January 26	66	30	0.00
January 27	63	31	0.00
January 28	54	31	0.00
January 29	51	30	0.00
January 30	53	32	0.00
January 31	61	33	0.00

February 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	61	31	0.00
February 2	61	29	0.00
February 3	63	32	0.00
February 4	66	32	0.00
February 5	62	35	0.00
February 6	69	36	0.00
February 7	65	35	0.00
February 8	58	45	0.62
February 9	61	41	0.01
February 10	69	37	0.00
February 11	71	36	0.00
February 12	71	39	0.00
February 13	76	38	0.00
February 14	77	39	0.00
February 15	80	39	0.00
February 16	75	41	0.00
February 17	71	38	0.00
February 18	80	37	0.00
February 19	70	35	0.00
February 20	59	44	0.12
February 21	57	47	1.36
February 22	60	35	0.16
February 23	56	45	0.36
February 24	60	33	0.00
February 25	63	32	0.00
February 26	67	34	0.00
February 27	69	35	0.00
February 28	59	40	0.02

March 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	60	36	0.00
March 2	60	34	0.00
March 3	64	38	0.00
March 4	70	45	0.00
March 5	71	35	0.00
March 6	69	31	0.00
March 7	61	42	0.00
March 8	70	40	0.00
March 9	60	40	0.16
March 10	66	33	0.00
March 11	66	37	0.00
March 12	59	43	0.05
March 13	56	30	0.00
March 14	59	27	0.00
March 15	50	40	0.93
March 16	49	37	0.69
March 17	60	35	0.00
March 18	65	35	0.00
March 19	70	37	0.00
March 20	72	35	0.00
March 21	76	35	0.00
March 22	75	36	0.00
March 23	63	40	0.19
March 24	51	38	0.50
March 25	68	32	0.02
March 26	75	39	0.00
March 27	70	45	0.00
March 28	65	33	0.00
March 29	61	33	0.10
March 30	65	31	0.17
March 31	66	31	0.00

April 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	69	35	0.00
April 2	72	37	0.00
April 3	74	40	0.00
April 4	78	37	0.00
April 5	76	42	0.00
April 6	84	41	0.00
April 7	77	46	0.00
April 8	54	50	0.10
April 9	63	45	0.02
April 10	78	44	0.00
April 11	80	37	0.00
April 12	88	41	0.00
April 13	78	50	0.00
April 14	85	41	0.00
April 15	87	40	0.00
April 16	81	42	0.00
April 17	83	43	0.00
April 18	79	50	0.00
April 19	85	54	0.00
April 20	80	37	0.00
April 21	76	34	0.00
April 22	80	35	0.00
April 23	84	37	0.00
April 24	75	40	0.00
April 25	69	52	0.00
April 26	77	42	0.00
April 27	76	38	0.00
April 28	69	37	0.00
April 29	69	55	0.04
April 30	73	51	0.00

May 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	66	52	0.43
May 2	69	42	0.01
May 3	65	45	0.04
May 4	70	44	0.00
May 5	64	44	0.00
May 6	63	34	0.00
May 7	63	34	0.02
May 8	69	44	0.01
May 9	60	46	0.08
May 10	60	50	0.01
May 11	59	42	0.16
May 12	65	45	0.05
May 13	74	43	0.00
May 14	74	39	0.00
May 15	71	43	0.00
May 16	71	43	0.00
May 17	74	36	0.00
May 18	69	39	0.08
May 19	81	45	0.02
May 20	81	49	0.00
May 21	80	45	0.00
May 22	70	50	0.00
May 23	70	49	0.00
May 24	71	40	0.00
May 25	69	40	0.00
May 26	69	52	0.20
May 27	75	40	0.00
May 28	87	43	0.00
May 29	84	40	0.00
May 30	92	46	0.00
May 31	95	53	0.00

June 1977 St. Helena Weather

Day	High (°F)	Low (°F)
June 1	86	52
June 2	87	45
June 3	86	50
June 4	99	48
June 5	102	58
June 6	99	56
June 7	91	59
June 8	80	56
June 9	63	54
June 10	65	54
June 11	69	46
June 12	75	51
June 13	79	51
June 14	79	52
June 15	82	50
June 16	84	49
June 17	76	52
June 18	79	52
June 19	71	51
June 20	92	50
June 21	106	59
June 22	103	56
June 23	90	54
June 24	95	52
June 25	94	55
June 26	88	54
June 27	90	51
June 28	89	53
June 29	88	52
June 30	96	59

July 1977 St. Helena Weather

Day	High (°F)	Low (°F)
July 1	91	60
July 2	85	56
July 3	84	45
July 4	81	52
July 5	89	44
July 6	93	46
July 7	88	51
July 8	87	55
July 9	84	47
July 10	92	49
July 11	90	51
July 12	80	52
July 13	82	52
July 14	89	50
July 15	92	50
July 16	101	61
July 17	98	54
July 18	95	51
July 19	90	52
July 20	92	51
July 21	93	49
July 22	90	50
July 23	84	50
July 24	81	53
July 25	87	51
July 26	90	50
July 27	101	49
July 28	94	50
July 29	109	53
July 30	109	59
July 31	101	57

August 1977 St. Helena Weather

Day	High (°F)	Low (°F)
August 1	102	61
August 2	90	61
August 3	97	60
August 4	90	56
August 5	83	61
August 6	80	56
August 7	84	50
August 8	90	51
August 9	84	51
August 10	87	55
August 11	89	54
August 12	87	55
August 13	88	54
August 14	91	45
August 15	94	49
August 16	92	51
August 17	85	52
August 18	90	52
August 19	86	51
August 20	86	54
August 21	89	55
August 22	100	50
August 23	85	52
August 24	81	52
August 25	77	56
August 26	86	55
August 27	92	51
August 28	103	60
August 29	104	62
August 30	100	62
August 31	87	65

September 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	81	50	0.00
September 2	88	52	0.00
September 3	93	51	0.00
September 4	100	52	0.00
September 5	101	56	0.00
September 6	101	55	0.00
September 7	99	52	0.00
September 8	101	51	0.00
September 9	95	51	0.00
September 10	80	55	0.00
September 11	80	51	0.00
September 12	82	52	0.00
September 13	81	50	0.00
September 14	71	53	0.00
September 15	66	45	0.00
September 16	66	50	0.08
September 17	69	56	0.14
September 18	75	56	0.01
September 19	72	58	0.58
September 20	78	51	0.00
September 21	83	48	0.00
September 22	84	47	0.00
September 23	82	46	0.00
September 24	80	57	0.00
September 25	84	46	0.00
September 26	76	45	0.00
September 27	75	49	0.00
September 28	70	61	0.24
September 29	72	56	0.05
September 30	80	45	0.00

October 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	82	44	0.00
October 2	85	45	0.00
October 3	90	46	0.00
October 4	81	47	0.00
October 5	73	47	0.00
October 6	72	45	0.00
October 7	83	46	0.00
October 8	86	45	0.00
October 9	83	46	0.00
October 10	89	45	0.00
October 11	85	46	0.00
October 12	83	47	0.00
October 13	90	46	0.00
October 14	88	46	0.00
October 15	85	46	0.00
October 16	81	45	0.00
October 17	76	44	0.00
October 18	77	46	0.00
October 19	64	51	0.00
October 20	70	51	0.00
October 21	72	46	0.00
October 22	82	40	0.00
October 23	72	42	0.00
October 24	73	52	0.00
October 25	78	56	0.00
October 26	74	51	0.00
October 27	62	47	0.00
October 28	66	47	0.00
October 29	66	52	0.32
October 30	68	45	0.14
October 31	68	41	0.00

November 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	75	40	0.00
November 2	75	41	0.00
November 3	61	42	0.00
November 4	63	35	0.00
November 5	62	40	0.70
November 6	70	40	0.00
November 7	75	39	0.00
November 8	76	45	0.00
November 9	75	35	0.00
November 10	72	36	0.00
November 11	63	41	0.02
November 12	68	48	0.07
November 13	73	36	0.00
November 14	70	40	0.00
November 15	76	39	0.00
November 16	80	41	0.00
November 17	71	41	0.00
November 18	63	40	0.00
November 19	52	36	0.00
November 20	59	26	0.00
November 21	55	40	5.19
November 22	66	40	1.10
November 23	68	41	0.00
November 24	70	40	0.00
November 25	71	42	0.00
November 26	72	42	0.00
November 27	71	41	0.00
November 28	69	39	0.00
November 29	73	39	0.00
November 30	74	38	0.00

December 1977 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	75	48	0.00
December 2	73	48	0.00
December 3	70	40	0.00
December 4	68	38	0.00
December 5	67	39	0.00
December 6	64	37	0.00
December 7	63	38	0.00
December 8	64	39	0.00
December 9	72	41	0.00
December 10	70	40	0.00
December 11	66	45	0.30
December 12	65	39	0.00
December 13	64	38	0.00
December 14	61	48	0.65
December 15	68	43	1.88
December 16	68	40	n/a
December 17	62	38	n/a
December 18	63	37	0.00
December 19	55	29	0.00
December 20	59	30	0.00
December 21	60	33	n/a
December 22	61	36	n/a
December 23	66	35	n/a
December 24	63	40	0.00
December 25	61	39	0.00
December 26	59	40	0.17
December 27	60	38	0.26
December 28	59	34	0.00
December 29	58	38	0.07
December 30	56	35	0.06
December 31	57	30	0.00

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Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location