Napa Weather in 1918

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

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1918 Napa Weather Extremes
Highest temperature	98 °F	June 10
Lowest temperature	23 °F	December 27
Highest daily low	69 °F	September 7
Lowest daily high	36 °F	December 31
Most daily precipitation	1.6 inches	February 6
Total annual precipitation	17.2 inches	-

What was the hottest temperature in Napa in 1918?

The highest temperature recorded in Napa, California in 1918 was 98 °F which happened on June 10.

Highest Temperatures: All-Time By Year

Highest Temperatures in Napa in 1918

Rank	Temperature	Date
1	98 °F	Jun 10
2	97 °F	Oct 12
3	96 °F	Oct 13
3	96 °F	Aug 30
5	95 °F	Aug 29
5	95 °F	Jun 18
7	94 °F	Aug 28
7	94 °F	Aug 22
7	94 °F	Aug 5
7	94 °F	Jun 26
7	94 °F	Jun 19
7	94 °F	Jun 8

What was the coldest temperature in Napa in 1918?

The lowest temperature recorded in Napa, California in 1918 was 23 °F which happened on Dec 27.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Napa in 1918

Rank	Temperature	Date
1	23 °F	December 27
2	24 °F	December 28
3	25 °F	December 29
3	25 °F	December 25
5	26 °F	December 30
5	26 °F	December 26
5	26 °F	December 24
5	26 °F	March 5
5	26 °F	January 31
10	27 °F	March 6
10	27 °F	January 21

January 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	57	42	0.00
January 2	51	42	0.00
January 3	51	38	0.00
January 4	50	43	0.00
January 5	48	41	0.01
January 6	50	42	0.00
January 7	53	39	0.00
January 8	58	47	0.00
January 9	63	33	0.00
January 10	66	38	0.00
January 11	65	32	0.00
January 12	55	32	0.43
January 13	56	42	0.00
January 14	58	44	0.52
January 15	57	44	0.02
January 16	62	42	0.05
January 17	62	38	0.00
January 18	64	39	0.01
January 19	62	40	0.00
January 20	55	37	0.00
January 21	60	27	0.00
January 22	62	30	0.00
January 23	65	32	0.00
January 24	66	31	0.00
January 25	67	31	0.00
January 26	62	35	0.00
January 27	67	31	0.00
January 28	64	36	0.00
January 29	65	30	0.00
January 30	62	30	0.00
January 31	60	26	0.00

February 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	58	30	0.08
February 2	62	31	0.00
February 3	66	32	0.00
February 4	65	43	0.00
February 5	59	50	0.36
February 6	64	53	1.57
February 7	62	44	0.80
February 8	64	34	0.00
February 9	69	38	0.00
February 10	69	33	0.00
February 11	60	36	0.00
February 12	52	37	0.00
February 13	54	33	0.05
February 14	56	45	0.27
February 15	55	29	0.00
February 16	51	28	0.00
February 17	55	40	0.88
February 18	58	30	0.12
February 19	50	30	0.73
February 20	48	40	0.05
February 21	58	45	0.38
February 22	59	41	0.05
February 23	52	44	1.03
February 24	53	39	0.11
February 25	66	43	0.00
February 26	65	35	0.00
February 27	63	38	0.00
February 28	64	39	0.00

March 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	65	34	0.00
March 2	70	35	0.00
March 3	60	40	0.00
March 4	55	38	0.00
March 5	56	26	0.00
March 6	56	27	0.00
March 7	53	40	0.35
March 8	55	35	0.00
March 9	62	31	0.00
March 10	60	44	1.13
March 11	59	40	0.02
March 12	58	45	0.38
March 13	59	31	0.00
March 14	65	32	0.00
March 15	74	33	0.00
March 16	70	41	0.00
March 17	63	49	0.00
March 18	55	49	0.63
March 19	60	48	0.00
March 20	68	35	0.00
March 21	67	40	0.00
March 22	55	49	0.01
March 23	67	44	0.00
March 24	67	45	0.00
March 25	65	48	0.28
March 26	55	48	0.11
March 27	66	36	0.00
March 28	72	37	0.00
March 29	75	39	0.00
March 30	80	41	0.00
March 31	66	43	0.00

April 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	67	43	0.00
April 2	64	34	0.00
April 3	64	36	0.00
April 4	66	29	0.00
April 5	67	31	0.00
April 6	62	37	0.00
April 7	64	46	0.19
April 8	68	43	0.00
April 9	67	54	0.56
April 10	68	42	0.00
April 11	68	40	0.00
April 12	60	39	0.00
April 13	64	32	0.00
April 14	63	35	0.00
April 15	69	38	0.00
April 16	80	43	0.00
April 17	81	44	0.00
April 18	84	51	0.00
April 19	84	52	0.00
April 20	80	41	0.00
April 21	84	48	0.00
April 22	65	48	0.00
April 23	65	45	0.00
April 24	66	35	0.00
April 25	64	42	0.00
April 26	62	39	0.00
April 27	72	44	0.00
April 28	62	41	0.00
April 29	70	41	0.00
April 30	76	37	0.00

May 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	84	42	0.00
May 2	85	45	0.00
May 3	83	37	0.00
May 4	71	40	0.00
May 5	73	38	0.00
May 6	72	46	0.00
May 7	67	43	0.00
May 8	66	50	0.00
May 9	66	32	0.00
May 10	65	34	0.00
May 11	75	36	0.00
May 12	75	38	0.00
May 13	75	44	0.00
May 14	70	32	0.00
May 15	71	39	0.00
May 16	69	40	0.00
May 17	65	42	0.00
May 18	69	36	0.00
May 19	71	38	0.00
May 20	70	34	0.00
May 21	71	44	0.00
May 22	70	38	0.00
May 23	69	42	0.00
May 24	66	43	0.00
May 25	71	48	0.00
May 26	65	32	0.00
May 27	71	37	0.05
May 28	78	38	0.01
May 29	70	45	0.00
May 30	65	44	0.00
May 31	80	50	0.00

June 1918 Napa Weather

Day	High (°F)	Low (°F)
June 1	89	42
June 2	93	66
June 3	80	66
June 4	78	46
June 5	77	66
June 6	81	66
June 7	80	48
June 8	94	45
June 9	93	47
June 10	98	51
June 11	85	57
June 12	84	56
June 13	82	51
June 14	82	40
June 15	84	66
June 16	77	67
June 17	93	42
June 18	95	52
June 19	94	65
June 20	93	55
June 21	80	51
June 22	77	67
June 23	72	47
June 24	76	43
June 25	93	46
June 26	94	66
June 27	81	49
June 28	80	66
June 29	81	51
June 30	80	66

July 1918 Napa Weather

Day	High (°F)	Low (°F)
July 1	79	51
July 2	80	52
July 3	78	51
July 4	78	45
July 5	74	46
July 6	83	47
July 7	82	45
July 8	83	66
July 9	74	50
July 10	79	43
July 11	88	51
July 12	87	47
July 13	84	49
July 14	87	50
July 15	81	50
July 16	84	66
July 17	82	50
July 18	82	49
July 19	85	49
July 20	91	46
July 21	93	65
July 22	85	66
July 23	79	45
July 24	82	66
July 25	83	53
July 26	82	55
July 27	74	65
July 28	82	41
July 29	84	43
July 30	86	66
July 31	85	66

August 1918 Napa Weather

Day	High (°F)	Low (°F)
August 1	86	55
August 2	85	44
August 3	87	66
August 4	83	46
August 5	94	47
August 6	93	47
August 7	72	50
August 8	82	54
August 9	87	48
August 10	86	48
August 11	72	54
August 12	76	52
August 13	75	50
August 14	72	48
August 15	72	55
August 16	75	43
August 17	78	66
August 18	81	46
August 19	82	51
August 20	90	45
August 21	93	66
August 22	94	67
August 23	91	48
August 24	89	67
August 25	80	51
August 26	80	52
August 27	83	67
August 28	94	46
August 29	95	51
August 30	96	53
August 31	87	53

September 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	84	56	0.00
September 2	76	54	0.00
September 3	80	51	0.00
September 4	75	52	0.00
September 5	78	57	0.00
September 6	76	49	0.00
September 7	73	69	0.00
September 8	73	48	0.00
September 9	74	46	0.00
September 10	85	45	0.00
September 11	87	58	0.00
September 12	81	59	1.44
September 13	70	68	1.21
September 14	81	58	0.00
September 15	80	52	0.00
September 16	86	56	0.00
September 17	84	55	0.00
September 18	74	56	0.00
September 19	75	57	0.00
September 20	74	54	0.00
September 21	70	48	0.00
September 22	65	53	0.00
September 23	74	48	0.00
September 24	81	45	0.00
September 25	81	45	0.00
September 26	77	48	0.00
September 27	85	47	0.00
September 28	77	54	0.00
September 29	78	53	0.00
September 30	77	51	0.00

October 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	74	53	0.00
October 2	77	55	0.00
October 3	77	52	0.00
October 4	75	49	0.00
October 5	72	42	0.15
October 6	78	42	0.00
October 7	81	43	0.00
October 8	77	44	0.00
October 9	72	50	0.00
October 10	82	45	0.00
October 11	91	48	0.00
October 12	97	50	0.00
October 13	96	51	0.00
October 14	74	48	0.00
October 15	54	53	0.00
October 16	54	41	0.28
October 17	68	44	0.00
October 18	71	46	0.00
October 19	72	43	0.00
October 20	69	39	0.00
October 21	70	46	0.00
October 22	52	41	0.00
October 23	62	44	0.00
October 24	61	37	0.00
October 25	64	41	0.00
October 26	68	34	0.00
October 27	65	34	0.00
October 28	70	35	0.00
October 29	71	36	0.00
October 30	72	44	0.00
October 31	67	43	0.00

November 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	64	41	0.00
November 2	56	37	0.00
November 3	56	40	n/a
November 4	57	41	n/a
November 5	49	37	0.00
November 6	50	34	0.00
November 7	50	32	0.00
November 8	52	32	0.00
November 9	54	35	0.00
November 10	55	35	0.00
November 11	56	36	0.00
November 12	55	47	0.00
November 13	52	50	0.00
November 14	50	39	n/a
November 15	45	38	n/a
November 16	48	36	0.00
November 17	47	42	1.00
November 18	50	42	0.01
November 19	47	42	0.00
November 20	48	41	0.00
November 21	42	41	0.00
November 22	45	40	n/a
November 23	48	45	n/a
November 24	46	36	0.00
November 25	47	35	0.00
November 26	46	37	0.00
November 27	42	32	0.00
November 28	52	35	0.00
November 29	52	29	0.00
November 30	52	28	0.00

December 1918 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	51	31	0.00
December 2	55	30	0.00
December 3	48	36	0.00
December 4	47	34	0.00
December 5	55	30	0.00
December 6	42	38	0.85
December 7	45	38	0.00
December 8	42	n/a	0.00
December 9	n/a	30	0.65
December 10	39	32	0.00
December 11	38	29	0.00
December 12	42	29	0.00
December 13	42	41	0.00
December 14	40	34	0.00
December 15	42	37	0.00
December 16	48	39	0.00
December 17	42	31	0.00
December 18	42	32	0.00
December 19	40	31	0.32
December 20	55	30	0.00
December 21	46	28	0.00
December 22	46	34	0.00
December 23	46	30	0.00
December 24	44	26	0.00
December 25	43	25	0.00
December 26	46	26	0.00
December 27	41	23	0.00
December 28	43	24	0.00
December 29	42	25	0.00
December 30	41	26	0.00
December 31	36	31	0.00

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Weather Station Details

Years	Station	Coordinates
1999–2024	Napa County Airport	location
1901–1998	Napa State Hospital	location