Napa Weather in 2023

2023 Napa Weather Extremes
Highest temperature	96 °F	October 7
Lowest temperature	29 °F	January 31
Highest daily low	64 °F	August 21
Lowest daily high	49 °F	January 2
Most daily precipitation	1.6 inches	January 14
Total annual precipitation	27.3 inches	-

Rank	Temperature	Date
1	96 °F	Oct 7
1	96 °F	Oct 5
1	96 °F	Aug 30
4	95 °F	Oct 19
4	95 °F	Oct 6
4	95 °F	Aug 23
4	95 °F	Aug 20
8	94 °F	Oct 4
9	91 °F	Aug 6
9	91 °F	Jul 1

Rank	Temperature	Date
1	29 °F	January 31
2	30 °F	December 9
2	30 °F	February 23
2	30 °F	February 18
5	31 °F	December 10
5	31 °F	December 8
5	31 °F	November 26
5	31 °F	February 16
5	31 °F	January 21
10	32 °F	December 11
10	32 °F	November 25
10	32 °F	March 1
10	32 °F	February 27
10	32 °F	February 1

January 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	65	40	0.00
January 2	49	40	0.22
January 3	51	46	0.01
January 4	61	49	1.06
January 5	57	46	0.64
January 6	57	49	0.03
January 7	61	51	0.27
January 8	62	48	0.41
January 9	60	45	1.55
January 10	56	50	0.67
January 11	55	50	0.53
January 12	64	54	0.00
January 13	61	53	0.44
January 14	59	47	1.64
January 15	54	45	0.94
January 16	57	42	0.17
January 17	56	34	0.00
January 18	54	36	0.20
January 19	57	36	0.00
January 20	60	36	0.00
January 21	58	31	0.00
January 22	62	35	0.00
January 23	68	39	0.00
January 24	62	38	0.00
January 25	66	35	0.00
January 26	66	41	0.00
January 27	n/a	35	0.00
January 28	58	35	0.00
January 29	53	36	0.00
January 30	60	39	0.00
January 31	58	29	0.00

February 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	58	32	0.00
February 2	60	36	0.00
February 3	56	47	0.39
February 4	57	50	0.21
February 5	57	40	0.15
February 6	64	34	0.00
February 7	62	35	0.00
February 8	64	36	0.00
February 9	66	38	0.00
February 10	61	33	0.00
February 11	60	41	0.08
February 12	67	38	0.00
February 13	66	39	0.00
February 14	55	36	0.00
February 15	61	36	0.00
February 16	57	31	0.00
February 17	64	37	0.00
February 18	63	30	0.00
February 19	65	33	0.00
February 20	69	38	0.00
February 21	64	41	0.00
February 22	54	36	0.00
February 23	50	30	0.60
February 24	50	39	0.57
February 25	50	40	0.20
February 26	51	39	0.24
February 27	50	32	0.38
February 28	55	38	0.45

March 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	58	32	0.00
March 2	60	37	0.00
March 3	59	33	0.00
March 4	55	42	0.22
March 5	54	37	0.32
March 6	53	37	0.71
March 7	55	37	0.01
March 8	56	42	0.35
March 9	56	39	1.28
March 10	60	48	0.44
March 11	57	44	0.19
March 12	59	54	0.08
March 13	65	55	0.04
March 14	62	47	0.77
March 15	62	38	0.00
March 16	64	39	0.00
March 17	67	39	0.00
March 18	65	42	0.00
March 19	57	52	0.58
March 20	58	46	0.00
March 21	55	47	1.35
March 22	60	n/a	0.15
March 23	59	n/a	0.00
March 24	63	38	0.00
March 25	61	36	0.00
March 26	61	33	0.00
March 27	62	33	0.00
March 28	54	45	0.63
March 29	50	43	1.06
March 30	59	39	0.00
March 31	60	38	0.00

April 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	63	37	0.00
April 2	60	44	0.00
April 3	63	39	0.00
April 4	59	33	0.00
April 5	61	36	0.00
April 6	63	39	0.00
April 7	62	50	0.05
April 8	67	47	0.00
April 9	74	n/a	0.00
April 10	73	46	0.00
April 11	68	49	0.00
April 12	64	41	0.00
April 13	66	45	0.00
April 14	64	38	0.00
April 15	66	43	0.00
April 16	65	43	0.00
April 17	61	49	0.09
April 18	61	39	0.00
April 19	64	38	0.00
April 20	69	39	0.00
April 21	78	45	0.00
April 22	76	53	0.00
April 23	74	53	0.00
April 24	73	45	0.00
April 25	78	43	0.00
April 26	83	45	0.00
April 27	85	50	0.00
April 28	76	50	0.00
April 29	70	48	0.00
April 30	69	44	0.00

May 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	59	50	0.20
May 2	59	50	0.17
May 3	64	46	0.08
May 4	63	42	0.00
May 5	65	51	0.03
May 6	64	48	0.15
May 7	66	41	0.00
May 8	66	46	0.07
May 9	70	44	0.00
May 10	66	45	0.00
May 11	71	42	0.00
May 12	74	46	0.00
May 13	86	53	0.00
May 14	69	54	0.00
May 15	72	53	0.00
May 16	80	52	0.00
May 17	73	52	0.00
May 18	71	52	0.00
May 19	72	51	0.00
May 20	70	52	0.00
May 21	72	55	0.00
May 22	75	55	0.00
May 23	67	54	0.00
May 24	67	54	0.00
May 25	64	54	0.00
May 26	69	54	0.00
May 27	68	53	0.00
May 28	67	55	0.00
May 29	67	52	0.00
May 30	70	50	0.00
May 31	68	53	0.00

June 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	69	n/a	0.00
June 2	73	54	0.00
June 3	76	52	0.00
June 4	73	54	0.00
June 5	69	54	0.00
June 6	71	55	0.01
June 7	67	n/a	0.00
June 8	74	52	0.00
June 9	73	54	0.00
June 10	69	54	0.00
June 11	69	55	0.00
June 12	70	57	0.01
June 13	71	55	0.00
June 14	71	55	0.00
June 15	73	55	0.00
June 16	74	55	0.00
June 17	74	56	0.00
June 18	82	54	0.00
June 19	75	51	0.00
June 20	76	42	0.00
June 21	76	45	0.00
June 22	69	53	0.00
June 23	71	55	0.00
June 24	73	54	0.00
June 25	72	56	0.00
June 26	71	54	0.00
June 27	69	56	0.00
June 28	70	54	0.00
June 29	80	53	0.00
June 30	84	54	0.00

July 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	91	56	0.00
July 2	88	56	0.00
July 3	76	55	0.00
July 4	74	55	0.00
July 5	72	55	0.00
July 6	73	56	0.00
July 7	74	54	0.00
July 8	79	49	0.00
July 9	74	51	0.00
July 10	78	48	0.00
July 11	83	52	0.00
July 12	75	56	0.00
July 13	82	54	0.00
July 14	84	57	0.00
July 15	87	58	0.00
July 16	86	57	0.00
July 17	84	61	0.00
July 18	73	56	0.00
July 19	74	57	0.00
July 20	83	58	0.00
July 21	85	55	0.00
July 22	89	53	0.00
July 23	80	61	0.00
July 24	78	51	0.00
July 25	86	52	0.00
July 26	77	58	0.00
July 27	74	57	0.00
July 28	81	51	0.00
July 29	80	54	0.00
July 30	81	52	0.00
July 31	77	58	0.00

August 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	72	58	0.00
August 2	72	59	0.00
August 3	74	53	0.00
August 4	78	59	0.00
August 5	84	59	0.00
August 6	91	60	0.00
August 7	88	58	0.00
August 8	74	58	0.00
August 9	76	59	0.00
August 10	75	59	0.00
August 11	74	59	0.00
August 12	83	58	0.00
August 13	84	59	0.00
August 14	83	63	0.00
August 15	87	61	0.00
August 16	84	58	0.00
August 17	82	60	0.00
August 18	78	63	0.00
August 19	77	60	0.00
August 20	95	62	0.00
August 21	77	64	0.00
August 22	83	63	0.00
August 23	95	59	0.00
August 24	80	62	0.00
August 25	78	57	0.00
August 26	79	53	0.00
August 27	84	50	0.00
August 28	84	49	0.00
August 29	87	51	0.00
August 30	96	54	0.00
August 31	75	60	0.00

September 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	75	60	0.00
September 2	78	61	0.01
September 3	78	57	0.00
September 4	78	56	0.00
September 5	80	58	0.00
September 6	76	55	0.00
September 7	77	54	0.00
September 8	84	53	0.00
September 9	83	46	0.00
September 10	80	50	0.00
September 11	81	50	0.00
September 12	75	60	0.00
September 13	77	55	0.00
September 14	75	58	0.00
September 15	75	61	0.00
September 16	78	60	0.00
September 17	78	61	0.00
September 18	79	56	0.00
September 19	75	53	0.00
September 20	73	59	0.00
September 21	74	50	0.00
September 22	73	47	0.00
September 23	73	46	0.00
September 24	74	48	0.00
September 25	77	50	0.00
September 26	82	55	0.04
September 27	85	48	0.00
September 28	81	50	0.00
September 29	79	50	0.00
September 30	72	57	0.07

October 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	76	50	0.00
October 2	77	47	0.00
October 3	79	48	0.00
October 4	94	52	0.00
October 5	96	55	0.00
October 6	95	54	0.00
October 7	96	52	0.00
October 8	78	54	0.00
October 9	71	57	0.00
October 10	74	57	0.00
October 11	75	48	0.00
October 12	81	42	0.00
October 13	76	45	0.00
October 14	76	59	0.00
October 15	81	55	0.00
October 16	80	48	0.00
October 17	83	54	0.00
October 18	89	49	0.00
October 19	95	53	0.00
October 20	70	53	0.00
October 21	72	51	0.00
October 22	68	58	0.45
October 23	74	51	0.00
October 24	72	51	0.00
October 25	68	46	0.00
October 26	67	37	0.00
October 27	65	33	0.00
October 28	75	35	0.00
October 29	78	40	0.00
October 30	75	34	0.00
October 31	76	37	0.00

November 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	78	38	0.00
November 2	78	42	0.00
November 3	80	49	0.00
November 4	75	50	0.00
November 5	68	56	0.07
November 6	69	50	0.10
November 7	68	42	0.01
November 8	72	38	0.00
November 9	67	33	0.00
November 10	70	38	0.00
November 11	72	41	0.00
November 12	73	43	0.00
November 13	67	44	0.00
November 14	70	47	0.03
November 15	69	53	0.01
November 16	69	54	0.00
November 17	72	47	0.22
November 18	63	50	0.69
November 19	66	40	0.00
November 20	69	44	0.00
November 21	68	41	0.00
November 22	67	36	0.00
November 23	74	39	0.00
November 24	64	33	0.00
November 25	65	32	0.00
November 26	66	31	0.00
November 27	63	33	0.00
November 28	64	34	0.06
November 29	62	40	0.07
November 30	65	38	0.00

December 2023 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	62	34	0.05
December 2	61	51	0.01
December 3	63	46	0.00
December 4	65	42	0.00
December 5	67	43	0.00
December 6	60	43	0.53
December 7	59	37	0.06
December 8	61	31	0.00
December 9	58	30	0.00
December 10	61	31	0.00
December 11	60	32	0.00
December 12	59	42	0.00
December 13	62	38	0.00
December 14	61	35	0.00
December 15	66	39	0.00
December 16	70	39	0.00
December 17	58	44	0.16
December 18	61	50	1.31
December 19	62	54	0.37
December 20	59	53	0.53
December 21	65	47	0.00
December 22	64	39	0.00
December 23	59	37	0.00
December 24	57	33	0.00
December 25	60	39	0.00
December 26	59	42	0.00
December 27	56	42	0.32
December 28	62	53	0.00
December 29	64	54	0.87
December 30	61	48	0.12
December 31	59	47	0.00