St. Helena Weather in 1918

Historical record of St. Helena, California weather for the year 1918 based on NOAA data.

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1918 St. Helena Weather Extremes
Highest temperature	109 °F	June 20
Lowest temperature	25 °F	December 26
Highest daily low	58 °F	September 20
Lowest daily high	45 °F	February 1
Most daily precipitation	2.5 inches	September 12

What was the hottest temperature in St. Helena in 1918?

The highest temperature recorded in St. Helena, California in 1918 was 109 °F which happened on June 20.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Helena in 1918

Rank	Temperature	Date
1	109 °F	Jun 20
2	107 °F	Aug 29
2	107 °F	Jun 11
4	104 °F	Aug 28
5	103 °F	Jun 26
6	102 °F	Jun 19
7	101 °F	Aug 22
7	101 °F	Jul 21
7	101 °F	Jun 10
7	101 °F	Jun 9

What was the coldest temperature in St. Helena in 1918?

The lowest temperature recorded in St. Helena, California in 1918 was 25 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Helena in 1918

Rank	Temperature	Date
1	25 °F	December 26
1	25 °F	March 5
3	26 °F	December 28
3	26 °F	December 27
3	26 °F	December 10
6	27 °F	December 24
6	27 °F	December 18
6	27 °F	March 6
6	27 °F	February 16
6	27 °F	January 31
6	27 °F	January 21

January 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	58	40	0.00
January 2	52	37	0.00
January 3	52	37	0.00
January 4	52	48	0.00
January 5	49	43	0.00
January 6	54	42	0.00
January 7	55	41	0.00
January 8	60	46	0.00
January 9	60	31	0.00
January 10	66	44	0.00
January 11	64	32	0.00
January 12	54	38	0.76
January 13	59	37	0.00
January 14	55	44	0.56
January 15	62	42	0.08
January 16	64	44	0.02
January 17	62	37	0.00
January 18	62	39	0.00
January 19	64	41	0.00
January 20	62	39	0.00
January 21	63	27	0.00
January 22	68	32	0.00
January 23	68	32	0.00
January 24	77	34	0.00
January 25	70	34	0.00
January 26	63	45	0.00
January 27	69	36	0.00
January 28	64	34	0.00
January 29	66	29	0.00
January 30	60	30	0.00
January 31	65	27	0.00

February 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	45	29	0.22
February 2	58	33	0.02
February 3	67	30	0.00
February 4	56	39	0.00
February 5	60	42	0.94
February 6	68	56	2.35
February 7	69	43	0.48
February 8	68	44	0.00
February 9	70	41	0.00
February 10	68	33	0.00
February 11	63	36	0.00
February 12	53	38	0.00
February 13	52	33	0.09
February 14	56	46	0.12
February 15	57	29	0.00
February 16	48	27	0.46
February 17	52	37	1.26
February 18	57	29	0.00
February 19	53	30	0.48
February 20	48	39	0.05
February 21	58	44	0.52
February 22	58	42	0.99
February 23	60	42	0.00
February 24	68	41	0.17
February 25	67	42	0.00
February 26	66	34	0.00
February 27	64	37	0.00
February 28	67	40	0.00

March 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	62	34	0.00
March 2	63	37	0.00
March 3	64	43	0.00
March 4	58	38	0.00
March 5	58	25	0.00
March 6	56	27	0.00
March 7	53	42	0.34
March 8	59	36	0.00
March 9	62	30	0.00
March 10	57	41	0.63
March 11	62	45	0.66
March 12	58	44	0.26
March 13	61	31	0.00
March 14	69	31	0.00
March 15	71	34	0.00
March 16	76	32	0.00
March 17	62	49	0.32
March 18	57	49	1.33
March 19	65	44	0.03
March 20	69	39	0.00
March 21	61	42	0.00
March 22	62	50	0.06
March 23	68	42	0.00
March 24	64	42	0.00
March 25	62	48	0.84
March 26	59	48	0.19
March 27	67	37	0.00
March 28	78	38	0.00
March 29	82	41	0.00
March 30	85	42	0.00
March 31	80	44	0.00

April 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	78	43	0.00
April 2	67	35	0.00
April 3	66	34	0.00
April 4	68	30	0.00
April 5	72	31	0.00
April 6	66	39	0.00
April 7	67	47	0.19
April 8	69	42	0.00
April 9	72	47	0.38
April 10	74	43	0.00
April 11	73	40	0.00
April 12	65	38	0.00
April 13	66	35	0.03
April 14	71	35	0.00
April 15	75	38	0.00
April 16	82	44	0.00
April 17	88	48	0.00
April 18	84	58	0.00
April 19	88	58	0.00
April 20	91	41	0.00
April 21	89	43	0.00
April 22	74	44	0.00
April 23	76	39	0.00
April 24	76	34	0.00
April 25	65	39	0.00
April 26	86	37	0.00
April 27	80	39	0.00
April 28	78	38	0.00
April 29	80	42	0.00
April 30	88	38	0.00

May 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	93	42	n/a
May 2	93	45	n/a
May 3	89	38	n/a
May 4	82	44	n/a
May 5	78	41	n/a
May 6	88	48	n/a
May 7	80	47	n/a
May 8	73	50	n/a
May 9	69	33	n/a
May 10	73	36	n/a
May 11	82	38	n/a
May 12	82	39	n/a
May 13	77	43	n/a
May 14	77	36	n/a
May 15	78	41	n/a
May 16	76	41	n/a
May 17	77	38	n/a
May 18	76	35	n/a
May 19	77	35	n/a
May 20	80	44	n/a
May 21	75	46	n/a
May 22	80	44	n/a
May 23	86	46	n/a
May 24	75	48	n/a
May 25	70	37	n/a
May 26	85	33	0.13
May 27	75	31	n/a
May 28	81	41	n/a
May 29	82	39	n/a
May 30	80	35	n/a
May 31	89	35	n/a

June 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	89	42	n/a
June 2	93	43	n/a
June 3	94	47	n/a
June 4	92	45	n/a
June 5	89	43	n/a
June 6	89	43	n/a
June 7	90	43	n/a
June 8	90	47	n/a
June 9	101	47	n/a
June 10	101	48	n/a
June 11	107	52	n/a
June 12	99	57	n/a
June 13	82	50	n/a
June 14	91	44	n/a
June 15	91	44	n/a
June 16	89	45	0.00
June 17	88	43	n/a
June 18	97	48	n/a
June 19	102	52	n/a
June 20	109	54	0.00
June 21	98	48	n/a
June 22	89	44	n/a
June 23	87	42	n/a
June 24	79	44	n/a
June 25	90	46	n/a
June 26	103	49	n/a
June 27	95	50	n/a
June 28	95	50	n/a
June 29	93	52	n/a
June 30	99	52	n/a

July 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	90	43	n/a
July 2	86	49	n/a
July 3	91	47	n/a
July 4	85	46	n/a
July 5	86	44	n/a
July 6	95	46	n/a
July 7	99	47	n/a
July 8	85	48	n/a
July 9	84	50	n/a
July 10	90	43	n/a
July 11	90	48	n/a
July 12	96	45	n/a
July 13	84	46	n/a
July 14	83	44	n/a
July 15	82	50	n/a
July 16	91	51	n/a
July 17	90	45	n/a
July 18	86	45	n/a
July 19	95	46	n/a
July 20	100	46	n/a
July 21	101	51	n/a
July 22	86	50	n/a
July 23	85	52	n/a
July 24	90	46	n/a
July 25	95	51	n/a
July 26	86	50	n/a
July 27	84	51	n/a
July 28	94	47	n/a
July 29	100	46	n/a
July 30	89	46	n/a
July 31	94	52	n/a

August 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	85	56	n/a
August 2	95	51	n/a
August 3	91	46	n/a
August 4	94	44	n/a
August 5	98	48	n/a
August 6	100	48	n/a
August 7	81	50	n/a
August 8	93	52	n/a
August 9	100	49	n/a
August 10	88	50	n/a
August 11	72	53	n/a
August 12	88	52	n/a
August 13	85	46	n/a
August 14	77	42	n/a
August 15	80	46	n/a
August 16	78	45	n/a
August 17	84	43	n/a
August 18	90	46	n/a
August 19	92	49	n/a
August 20	93	47	n/a
August 21	99	45	n/a
August 22	101	47	n/a
August 23	99	49	n/a
August 24	98	48	n/a
August 25	94	48	n/a
August 26	93	50	n/a
August 27	94	43	n/a
August 28	104	47	n/a
August 29	107	50	n/a
August 30	97	55	n/a
August 31	88	53	n/a

September 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	83	55	n/a
September 2	85	48	n/a
September 3	86	46	n/a
September 4	85	46	n/a
September 5	87	46	n/a
September 6	84	48	n/a
September 7	78	44	n/a
September 8	79	47	n/a
September 9	81	46	n/a
September 10	90	45	n/a
September 11	92	48	n/a
September 12	69	54	2.48
September 13	68	54	0.95
September 14	74	56	n/a
September 15	82	51	n/a
September 16	85	55	n/a
September 17	85	56	n/a
September 18	69	56	n/a
September 19	85	56	n/a
September 20	76	58	n/a
September 21	84	49	n/a
September 22	83	44	n/a
September 23	82	44	n/a
September 24	74	48	n/a
September 25	74	47	n/a
September 26	75	46	n/a
September 27	85	47	n/a
September 28	81	49	n/a
September 29	79	52	n/a
September 30	85	43	n/a

October 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	83	45	n/a
October 2	80	55	n/a
October 3	79	47	n/a
October 4	79	48	n/a
October 5	78	43	0.46
October 6	79	42	n/a
October 7	82	44	n/a
October 8	80	45	n/a
October 9	73	48	n/a
October 10	84	47	n/a
October 11	94	46	n/a
October 12	93	50	n/a
October 13	91	51	n/a
October 14	72	51	n/a
October 15	76	55	n/a
October 16	66	42	0.46
October 17	77	40	n/a
October 18	84	40	n/a
October 19	86	51	n/a
October 20	85	45	n/a
October 21	68	47	n/a
October 22	73	51	n/a
October 23	76	40	n/a
October 24	81	39	n/a
October 25	80	44	n/a
October 26	80	34	n/a
October 27	81	38	n/a
October 28	87	47	n/a
October 29	90	52	n/a
October 30	89	47	n/a
October 31	83	44	n/a

November 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	83	44	n/a
November 2	77	39	n/a
November 3	62	43	n/a
November 4	74	38	n/a
November 5	75	38	n/a
November 6	68	40	n/a
November 7	68	32	n/a
November 8	70	32	n/a
November 9	70	35	n/a
November 10	69	36	n/a
November 11	73	40	n/a
November 12	72	32	n/a
November 13	69	41	n/a
November 14	62	39	n/a
November 15	62	39	n/a
November 16	63	35	n/a
November 17	59	39	n/a
November 18	67	48	n/a
November 19	69	48	n/a
November 20	72	38	n/a
November 21	59	35	n/a
November 22	65	37	n/a
November 23	65	42	n/a
November 24	63	38	n/a
November 25	65	36	n/a
November 26	65	35	n/a
November 27	57	34	n/a
November 28	66	39	n/a
November 29	62	30	n/a
November 30	66	31	n/a

December 1918 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	63	30	n/a
December 2	66	31	n/a
December 3	72	31	n/a
December 4	65	32	n/a
December 5	57	37	n/a
December 6	59	40	1.00
December 7	63	43	n/a
December 8	59	40	n/a
December 9	55	32	1.19
December 10	56	26	n/a
December 11	54	28	n/a
December 12	55	29	n/a
December 13	52	33	n/a
December 14	60	34	n/a
December 15	66	34	n/a
December 16	65	36	n/a
December 17	54	30	n/a
December 18	55	27	n/a
December 19	46	30	0.10
December 20	58	33	n/a
December 21	60	37	n/a
December 22	60	37	n/a
December 23	65	32	n/a
December 24	59	27	n/a
December 25	63	30	n/a
December 26	59	25	n/a
December 27	63	26	n/a
December 28	57	26	n/a
December 29	63	28	n/a
December 30	53	35	n/a
December 31	56	28	n/a

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Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location