St. Helena Weather in 1921

Historical record of St. Helena, California weather for the year 1921 based on NOAA data.

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1921 St. Helena Weather Extremes
Highest temperature	112 °F	July 6
Lowest temperature	23 °F	November 19
Highest daily low	71 °F	July 3
Lowest daily high	45 °F	January 12
Most daily precipitation	3.1 inches	January 17

What was the hottest temperature in St. Helena in 1921?

The highest temperature recorded in St. Helena, California in 1921 was 112 °F which happened on July 6.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Helena in 1921

Rank	Temperature	Date
1	112 °F	Jul 6
2	110 °F	Jul 8
2	110 °F	Jul 7
2	110 °F	Jun 21
5	108 °F	Sep 27
5	108 °F	Jun 10
7	107 °F	Jun 22
7	107 °F	Jun 9
9	106 °F	Sep 28
9	106 °F	Jul 5
9	106 °F	Jun 20

What was the coldest temperature in St. Helena in 1921?

The lowest temperature recorded in St. Helena, California in 1921 was 23 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Helena in 1921

Rank	Temperature	Date
1	23 °F	November 19
1	23 °F	November 18
3	25 °F	November 20
4	26 °F	November 16
4	26 °F	February 15
6	27 °F	December 19
7	28 °F	December 7
7	28 °F	January 23
7	28 °F	January 8
10	29 °F	December 14
10	29 °F	December 13
10	29 °F	November 17
10	29 °F	April 15
10	29 °F	February 16
10	29 °F	January 22
10	29 °F	January 12
10	29 °F	January 11
10	29 °F	January 7
10	29 °F	January 6

January 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	63	35	0.00
January 2	58	36	0.00
January 3	58	43	0.00
January 4	56	45	0.08
January 5	58	47	0.49
January 6	57	29	0.09
January 7	54	29	0.00
January 8	60	28	0.00
January 9	56	32	0.00
January 10	56	39	0.00
January 11	58	29	0.00
January 12	45	29	0.00
January 13	59	39	0.14
January 14	69	31	0.00
January 15	63	30	0.00
January 16	55	36	0.00
January 17	57	40	3.10
January 18	50	43	0.60
January 19	56	37	1.05
January 20	51	35	0.49
January 21	57	32	0.02
January 22	65	29	0.00
January 23	51	28	0.00
January 24	51	42	1.64
January 25	55	40	0.49
January 26	55	40	0.55
January 27	60	45	0.81
January 28	54	33	0.06
January 29	52	35	0.08
January 30	59	38	2.47
January 31	55	32	0.05

February 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	55	37	0.01
February 2	55	36	0.00
February 3	63	41	0.00
February 4	54	37	0.00
February 5	58	42	0.23
February 6	62	30	0.00
February 7	70	37	0.00
February 8	63	37	0.00
February 9	69	39	0.00
February 10	70	44	0.00
February 11	71	42	0.00
February 12	62	45	0.00
February 13	55	40	0.00
February 14	51	39	0.31
February 15	54	26	0.00
February 16	54	29	0.00
February 17	61	38	0.44
February 18	58	30	0.00
February 19	64	31	0.00
February 20	58	39	0.00
February 21	64	43	0.67
February 22	70	32	0.00
February 23	78	33	0.00
February 24	75	35	0.00
February 25	74	34	0.00
February 26	73	38	0.00
February 27	56	42	0.00
February 28	72	36	0.00

March 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	73	40	0.00
March 2	78	45	0.00
March 3	58	48	0.00
March 4	61	42	0.00
March 5	60	48	0.32
March 6	69	40	0.35
March 7	64	38	0.00
March 8	64	43	0.00
March 9	68	48	0.00
March 10	54	49	0.00
March 11	55	45	0.00
March 12	57	45	0.00
March 13	58	47	1.15
March 14	66	40	0.16
March 15	63	41	0.00
March 16	74	40	0.00
March 17	65	41	0.10
March 18	67	45	0.00
March 19	68	36	0.00
March 20	65	35	0.00
March 21	67	35	0.00
March 22	68	36	1.11
March 23	65	35	0.00
March 24	68	40	0.00
March 25	69	37	0.00
March 26	68	38	0.00
March 27	80	47	0.00
March 28	77	37	0.00
March 29	71	41	0.00
March 30	68	40	0.00
March 31	72	41	0.00

April 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	73	44	0.00
April 2	64	45	0.00
April 3	63	40	0.00
April 4	64	35	0.00
April 5	72	41	0.00
April 6	71	33	0.00
April 7	67	32	0.00
April 8	76	38	0.00
April 9	75	38	0.00
April 10	63	35	0.00
April 11	72	46	0.00
April 12	64	39	0.00
April 13	63	38	0.19
April 14	63	31	0.00
April 15	65	29	0.00
April 16	59	34	0.00
April 17	61	44	0.45
April 18	68	38	0.22
April 19	65	40	0.00
April 20	64	40	0.00
April 21	91	43	0.00
April 22	85	43	0.00
April 23	71	44	0.00
April 24	72	37	0.00
April 25	76	38	0.00
April 26	88	42	0.00
April 27	92	51	0.00
April 28	96	63	0.00
April 29	97	50	0.00
April 30	82	40	0.00

May 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	65	39	0.00
May 2	70	33	0.25
May 3	71	33	0.00
May 4	75	32	0.00
May 5	68	44	0.00
May 6	75	41	0.00
May 7	71	42	0.00
May 8	n/a	40	0.00
May 9	80	36	0.00
May 10	82	40	0.00
May 11	95	43	0.00
May 12	93	40	0.00
May 13	89	38	0.00
May 14	87	39	0.00
May 15	85	39	0.00
May 16	71	49	0.00
May 17	68	38	0.00
May 18	72	36	0.13
May 19	60	48	0.00
May 20	63	44	0.00
May 21	80	49	0.18
May 22	85	44	0.00
May 23	92	44	0.00
May 24	78	52	0.00
May 25	84	51	0.00
May 26	97	47	0.00
May 27	78	49	0.00
May 28	66	39	0.00
May 29	72	48	0.32
May 30	75	40	0.39
May 31	69	49	0.00

June 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	82	39	n/a
June 2	77	43	n/a
June 3	82	46	n/a
June 4	86	52	n/a
June 5	97	50	n/a
June 6	99	53	n/a
June 7	88	51	n/a
June 8	97	43	n/a
June 9	107	57	n/a
June 10	108	60	n/a
June 11	98	56	n/a
June 12	88	47	n/a
June 13	94	43	n/a
June 14	91	43	n/a
June 15	89	42	n/a
June 16	87	41	n/a
June 17	85	41	n/a
June 18	94	44	n/a
June 19	95	51	n/a
June 20	106	60	n/a
June 21	110	59	n/a
June 22	107	66	n/a
June 23	91	49	n/a
June 24	86	48	n/a
June 25	89	50	n/a
June 26	88	43	n/a
June 27	92	49	n/a
June 28	85	51	n/a
June 29	84	51	n/a
June 30	96	57	n/a

July 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	104	54	n/a
July 2	98	63	n/a
July 3	97	71	n/a
July 4	102	53	n/a
July 5	106	50	n/a
July 6	112	55	n/a
July 7	110	56	n/a
July 8	110	53	n/a
July 9	101	49	n/a
July 10	93	48	n/a
July 11	90	53	n/a
July 12	92	53	n/a
July 13	98	48	n/a
July 14	92	51	n/a
July 15	92	52	n/a
July 16	93	48	n/a
July 17	85	51	n/a
July 18	86	52	n/a
July 19	94	51	n/a
July 20	96	46	n/a
July 21	98	47	n/a
July 22	93	47	n/a
July 23	91	49	n/a
July 24	86	46	n/a
July 25	83	40	n/a
July 26	96	44	n/a
July 27	84	51	n/a
July 28	90	51	n/a
July 29	85	47	n/a
July 30	83	51	n/a
July 31	85	47	n/a

August 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	84	56	0.00
August 2	91	51	0.00
August 3	97	65	0.00
August 4	97	68	0.00
August 5	96	69	0.00
August 6	88	66	0.00
August 7	85	53	0.01
August 8	85	51	0.00
August 9	87	52	0.00
August 10	85	50	0.00
August 11	84	48	0.00
August 12	83	47	0.00
August 13	89	41	0.00
August 14	91	42	0.00
August 15	100	48	0.00
August 16	92	47	0.00
August 17	89	47	0.00
August 18	91	46	0.00
August 19	95	54	0.00
August 20	87	45	0.00
August 21	89	45	0.00
August 22	90	40	0.00
August 23	85	40	0.00
August 24	89	45	0.00
August 25	87	47	0.00
August 26	92	45	0.00
August 27	94	40	0.00
August 28	95	40	0.00
August 29	99	47	0.00
August 30	88	46	0.00
August 31	86	40	0.00

September 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	80	49	0.00
September 2	76	55	0.00
September 3	88	40	0.00
September 4	97	41	0.00
September 5	99	40	0.00
September 6	95	43	0.00
September 7	98	44	0.00
September 8	92	45	0.00
September 9	83	50	0.00
September 10	79	52	0.00
September 11	79	51	0.00
September 12	78	52	0.00
September 13	77	35	0.00
September 14	84	35	0.00
September 15	87	37	0.00
September 16	82	37	0.00
September 17	68	43	0.00
September 18	73	55	0.05
September 19	82	56	0.05
September 20	92	44	0.00
September 21	95	42	0.00
September 22	95	42	0.00
September 23	90	44	0.00
September 24	92	39	0.00
September 25	95	45	0.00
September 26	103	48	0.00
September 27	108	49	0.00
September 28	106	50	0.00
September 29	99	45	0.00
September 30	86	43	0.00

October 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	82	48	0.00
October 2	82	54	0.00
October 3	84	42	0.00
October 4	88	48	0.00
October 5	82	47	0.00
October 6	77	51	0.00
October 7	89	52	0.00
October 8	85	46	0.00
October 9	83	45	0.00
October 10	87	46	0.00
October 11	85	41	0.00
October 12	78	41	0.00
October 13	81	51	0.00
October 14	63	47	0.18
October 15	78	53	0.02
October 16	86	43	0.00
October 17	89	41	0.00
October 18	97	50	0.00
October 19	98	51	0.00
October 20	93	49	0.00
October 21	78	40	0.00
October 22	63	38	0.00
October 23	66	45	0.05
October 24	70	31	0.00
October 25	67	43	0.00
October 26	67	40	0.25
October 27	74	35	0.00
October 28	84	36	0.00
October 29	88	43	0.00
October 30	87	35	0.00
October 31	80	40	0.00

November 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	85	37	0.00
November 2	86	39	0.00
November 3	79	35	0.00
November 4	86	38	0.00
November 5	86	39	0.00
November 6	86	36	0.00
November 7	84	38	0.00
November 8	86	39	0.00
November 9	79	36	0.00
November 10	85	35	0.00
November 11	85	36	0.00
November 12	80	34	0.00
November 13	79	34	0.00
November 14	62	36	0.00
November 15	66	32	0.00
November 16	64	26	0.00
November 17	62	29	0.00
November 18	62	23	0.00
November 19	63	23	0.00
November 20	67	25	0.00
November 21	54	30	0.27
November 22	56	51	0.31
November 23	63	46	0.00
November 24	51	41	0.37
November 25	60	49	0.04
November 26	67	53	0.10
November 27	57	45	0.46
November 28	62	35	0.00
November 29	58	41	0.01
November 30	70	53	0.01

December 1921 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	63	47	0.26
December 2	61	34	0.00
December 3	69	48	0.00
December 4	66	33	0.00
December 5	67	30	0.00
December 6	63	31	0.00
December 7	62	28	0.00
December 8	65	37	0.00
December 9	64	40	0.00
December 10	65	33	0.00
December 11	69	32	0.00
December 12	67	37	0.00
December 13	68	29	0.00
December 14	58	29	0.00
December 15	54	40	0.00
December 16	69	30	0.00
December 17	56	32	0.00
December 18	53	32	0.00
December 19	49	27	0.10
December 20	55	45	0.83
December 21	56	41	0.21
December 22	53	36	0.93
December 23	51	37	0.84
December 24	51	45	0.88
December 25	56	44	1.73
December 26	56	49	1.61
December 27	58	44	0.59
December 28	62	38	0.00
December 29	55	47	0.12
December 30	70	48	0.00
December 31	65	42	0.00

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Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location