Napa Weather in 2009

Historical record of Napa, California weather for the year 2009 based on NOAA data.

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2009 Napa Weather Extremes
Highest temperature	99 °F	September 26
Lowest temperature	19 °F	December 8
Highest daily low	60 °F	October 14
Lowest daily high	44 °F	January 1
Most daily precipitation	3.7 inches	October 13
Total annual precipitation	18.0 inches	-

What was the hottest temperature in Napa in 2009?

The highest temperature recorded in Napa, California in 2009 was 99 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Napa in 2009

Rank	Temperature	Date
1	99 °F	Sep 26
1	99 °F	Aug 29
3	98 °F	Jun 27
4	97 °F	Aug 28
5	96 °F	Sep 2
5	96 °F	Jul 13
7	95 °F	Sep 18
7	95 °F	Jul 14
7	95 °F	May 17
7	95 °F	May 16

What was the coldest temperature in Napa in 2009?

The lowest temperature recorded in Napa, California in 2009 was 19 °F which happened on Dec 8.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Napa in 2009

Rank	Temperature	Date
1	19 °F	December 8
2	21 °F	December 9
3	22 °F	December 7
3	22 °F	December 6
3	22 °F	January 4
6	25 °F	December 5
6	25 °F	February 10
6	25 °F	January 11
9	26 °F	January 26
9	26 °F	January 3

January 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	44	41	0.00
January 2	56	34	0.14
January 3	55	26	0.00
January 4	50	22	0.00
January 5	45	37	0.00
January 6	53	35	0.00
January 7	49	37	0.00
January 8	50	34	0.00
January 9	61	31	0.00
January 10	59	32	0.00
January 11	63	25	0.00
January 12	80	39	0.00
January 13	68	38	0.00
January 14	65	36	0.00
January 15	67	31	0.00
January 16	68	32	0.00
January 17	66	31	0.00
January 18	70	35	0.00
January 19	69	34	0.00
January 20	70	30	0.00
January 21	57	42	0.01
January 22	55	49	0.50
January 23	57	50	0.20
January 24	57	42	0.01
January 25	57	33	0.00
January 26	57	26	0.00
January 27	55	29	0.00
January 28	60	29	0.00
January 29	63	30	0.00
January 30	64	32	0.00
January 31	64	30	0.00

February 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	65	29	0.00
February 2	66	36	0.00
February 3	68	35	0.00
February 4	65	33	0.00
February 5	59	45	0.25
February 6	55	48	0.22
February 7	61	37	0.00
February 8	56	33	0.11
February 9	54	33	0.00
February 10	53	25	0.11
February 11	53	39	0.30
February 12	52	34	0.00
February 13	50	34	0.83
February 14	54	33	0.02
February 15	52	45	1.44
February 16	54	46	0.60
February 17	54	42	0.69
February 18	56	42	0.01
February 19	61	40	0.00
February 20	64	39	0.00
February 21	61	38	0.00
February 22	56	53	1.77
February 23	58	50	0.33
February 24	60	44	0.02
February 25	59	42	0.09
February 26	60	40	0.08
February 27	57	34	0.00
February 28	61	45	0.00

March 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	60	51	0.45
March 2	59	51	0.45
March 3	55	41	0.44
March 4	55	35	0.06
March 5	56	43	0.49
March 6	58	36	0.00
March 7	60	32	0.00
March 8	59	36	0.00
March 9	55	32	0.00
March 10	57	27	0.00
March 11	60	31	0.00
March 12	63	33	0.00
March 13	63	36	0.00
March 14	55	43	0.00
March 15	59	48	0.02
March 16	61	51	0.05
March 17	66	45	0.00
March 18	71	46	0.00
March 19	72	43	0.00
March 20	65	41	0.00
March 21	57	46	0.00
March 22	58	38	0.02
March 23	60	29	0.00
March 24	67	32	0.00
March 25	70	37	0.00
March 26	72	41	0.00
March 27	80	44	0.00
March 28	73	42	0.00
March 29	66	43	0.00
March 30	69	39	0.00
March 31	73	35	0.00

April 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	72	38	0.00
April 2	68	43	0.00
April 3	62	32	0.00
April 4	65	34	0.00
April 5	74	33	0.00
April 6	79	35	0.00
April 7	57	41	0.54
April 8	59	47	0.00
April 9	55	48	0.06
April 10	60	42	0.03
April 11	64	33	0.00
April 12	68	38	0.00
April 13	68	38	0.00
April 14	62	30	0.00
April 15	62	30	0.00
April 16	66	31	0.00
April 17	74	33	0.00
April 18	78	44	0.00
April 19	87	43	0.00
April 20	90	45	0.00
April 21	91	48	0.00
April 22	75	46	0.00
April 23	67	46	0.00
April 24	64	39	0.00
April 25	65	32	0.00
April 26	66	32	0.00
April 27	62	44	0.00
April 28	62	41	0.00
April 29	65	32	0.00
April 30	66	32	0.00

May 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	61	42	0.61
May 2	60	54	0.23
May 3	65	48	0.02
May 4	65	48	0.11
May 5	68	54	0.07
May 6	70	50	0.00
May 7	77	47	0.00
May 8	78	44	0.00
May 9	75	41	0.00
May 10	77	44	0.00
May 11	76	45	0.00
May 12	76	37	0.00
May 13	80	41	0.00
May 14	78	48	0.00
May 15	78	51	0.00
May 16	95	46	0.00
May 17	95	51	0.00
May 18	70	48	0.00
May 19	77	50	0.00
May 20	70	40	0.00
May 21	74	45	0.00
May 22	68	51	0.00
May 23	61	49	0.00
May 24	63	50	0.00
May 25	69	50	0.00
May 26	79	43	0.00
May 27	73	48	0.00
May 28	72	48	0.00
May 29	73	51	0.00
May 30	70	53	0.00
May 31	71	51	0.00

June 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	72	51	0.00
June 2	75	50	0.10
June 3	76	52	0.02
June 4	71	53	0.00
June 5	69	48	0.00
June 6	73	45	0.00
June 7	77	44	0.00
June 8	71	46	0.00
June 9	71	54	0.00
June 10	71	56	0.00
June 11	75	46	0.00
June 12	73	43	0.00
June 13	72	48	0.00
June 14	74	49	0.00
June 15	75	53	0.00
June 16	72	47	0.00
June 17	75	52	0.00
June 18	87	57	0.00
June 19	85	51	0.00
June 20	74	50	0.00
June 21	76	45	0.00
June 22	85	47	0.00
June 23	85	48	0.00
June 24	75	50	0.00
June 25	71	53	0.00
June 26	77	53	0.00
June 27	98	48	0.00
June 28	92	55	0.00
June 29	78	56	0.00
June 30	76	49	0.00

July 2009 Napa Weather

Day	High (°F)	Low (°F)
July 1	74	53
July 2	76	54
July 3	75	52
July 4	74	53
July 5	70	52
July 6	79	50
July 7	70	46
July 8	85	44
July 9	77	45
July 10	76	48
July 11	76	52
July 12	85	54
July 13	96	47
July 14	95	52
July 15	79	50
July 16	81	48
July 17	85	47
July 18	86	50
July 19	87	54
July 20	75	52
July 21	73	51
July 22	72	51
July 23	69	54
July 24	71	53
July 25	75	52
July 26	80	54
July 27	78	50
July 28	73	51
July 29	76	57
July 30	77	56
July 31	78	52

August 2009 Napa Weather

Day	High (°F)	Low (°F)
August 1	74	51
August 2	76	54
August 3	77	55
August 4	81	55
August 5	80	51
August 6	73	55
August 7	76	46
August 8	83	49
August 9	92	49
August 10	92	53
August 11	72	56
August 12	89	57
August 13	91	56
August 14	79	54
August 15	84	49
August 16	84	49
August 17	74	52
August 18	75	51
August 19	72	53
August 20	75	52
August 21	90	52
August 22	72	54
August 23	70	48
August 24	71	51
August 25	76	53
August 26	79	49
August 27	94	46
August 28	97	53
August 29	99	58
August 30	74	50
August 31	76	54

September 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	85	52	0.00
September 2	96	54	0.00
September 3	93	54	0.00
September 4	75	50	0.00
September 5	82	48	0.00
September 6	81	54	0.00
September 7	83	46	0.00
September 8	78	45	0.00
September 9	78	45	0.00
September 10	94	47	0.00
September 11	92	49	0.00
September 12	73	58	0.01
September 13	70	59	0.10
September 14	78	55	0.00
September 15	82	48	0.00
September 16	84	48	0.00
September 17	86	57	0.00
September 18	95	53	0.00
September 19	75	56	0.00
September 20	84	58	0.00
September 21	87	54	0.00
September 22	94	49	0.00
September 23	78	50	0.00
September 24	74	50	0.00
September 25	88	54	0.00
September 26	99	50	0.00
September 27	93	50	0.00
September 28	71	50	0.00
September 29	75	48	0.00
September 30	76	37	0.00

October 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	81	41	0.00
October 2	83	43	0.00
October 3	72	45	0.00
October 4	66	35	0.00
October 5	72	36	0.00
October 6	79	36	0.00
October 7	72	37	0.00
October 8	66	48	0.00
October 9	69	45	0.00
October 10	65	46	0.00
October 11	57	49	0.00
October 12	63	55	0.00
October 13	63	56	3.66
October 14	72	60	0.00
October 15	74	56	0.02
October 16	79	55	0.00
October 17	80	51	0.00
October 18	68	52	0.00
October 19	63	48	0.46
October 20	69	45	0.00
October 21	69	46	0.00
October 22	73	48	0.00
October 23	76	45	0.00
October 24	76	46	0.00
October 25	86	42	0.00
October 26	75	46	0.00
October 27	67	42	0.00
October 28	64	38	0.00
October 29	70	36	0.00
October 30	71	40	0.00
October 31	71	42	0.00

November 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	73	42	0.00
November 2	75	42	0.00
November 3	77	42	0.00
November 4	63	41	0.00
November 5	65	48	0.00
November 6	61	48	0.08
November 7	67	39	0.00
November 8	66	34	0.00
November 9	62	35	0.00
November 10	63	43	0.00
November 11	64	47	0.00
November 12	62	37	0.01
November 13	61	31	0.00
November 14	60	33	0.00
November 15	62	28	0.00
November 16	64	31	0.00
November 17	61	28	0.06
November 18	60	33	0.00
November 19	59	29	0.00
November 20	57	32	0.36
November 21	57	29	0.00
November 22	57	37	0.00
November 23	63	29	0.00
November 24	66	34	0.00
November 25	67	35	0.00
November 26	65	33	0.00
November 27	59	43	0.11
November 28	67	43	0.00
November 29	72	36	0.00
November 30	62	33	0.00

December 2009 Napa Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	62	29	0.00
December 2	52	31	0.00
December 3	52	29	0.00
December 4	54	30	0.00
December 5	52	25	0.00
December 6	51	22	0.14
December 7	47	22	0.07
December 8	45	19	0.00
December 9	46	21	0.00
December 10	48	36	0.02
December 11	45	41	0.30
December 12	54	45	0.36
December 13	52	48	0.19
December 14	56	42	0.00
December 15	57	45	0.00
December 16	55	42	0.07
December 17	58	40	0.00
December 18	57	39	0.00
December 19	52	43	0.00
December 20	55	43	0.04
December 21	57	42	0.06
December 22	54	28	0.00
December 23	55	28	0.00
December 24	56	29	0.00
December 25	57	27	0.00
December 26	50	34	0.09
December 27	54	37	0.05
December 28	51	33	0.00
December 29	49	27	0.08
December 30	55	45	0.13
December 31	54	46	0.00

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Weather Station Details

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