St. Helena Weather in 2009

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

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2009 St. Helena Weather Extremes
Highest temperature	103 °F	June 28
Lowest temperature	24 °F	December 9
Highest daily low	70 °F	August 29
Lowest daily high	45 °F	December 8
Most daily precipitation	3.6 inches	October 13
Most daily snow	none	-
Total annual precipitation	27.8 inches	-
Total annual snow	none	-

What was the hottest temperature in St. Helena in 2009?

The highest temperature recorded in St. Helena, California in 2009 was 103 °F which happened on June 28.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Helena in 2009

Rank	Temperature	Date
1	103 °F	Jun 28
2	102 °F	Aug 29
3	101 °F	Aug 31
3	101 °F	Aug 30
3	101 °F	Jul 20
3	101 °F	Jul 19
7	100 °F	Aug 28
7	100 °F	Jul 14
7	100 °F	Jun 29
7	100 °F	Jun 27

What was the coldest temperature in St. Helena in 2009?

The lowest temperature recorded in St. Helena, California in 2009 was 24 °F which happened on Dec 9.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Helena in 2009

Rank	Temperature	Date
1	24 °F	December 9
2	25 °F	December 8
3	28 °F	January 4
4	29 °F	December 6
5	31 °F	December 25
5	31 °F	December 4
5	31 °F	March 10
5	31 °F	February 10
9	32 °F	January 28
9	32 °F	January 3

January 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	n/a	43	0.00
January 2	53	42	0.25
January 3	56	32	0.00
January 4	52	28	0.00
January 5	49	40	0.05
January 6	54	42	0.00
January 7	57	42	0.00
January 8	56	43	0.00
January 9	66	38	0.00
January 10	68	40	0.00
January 11	65	34	0.00
January 12	79	48	0.00
January 13	76	52	0.00
January 14	67	38	0.00
January 15	75	36	0.00
January 16	78	42	0.00
January 17	68	38	0.00
January 18	70	39	0.00
January 19	n/a	n/a	0.00
January 20	72	38	0.00
January 21	57	43	0.00
January 22	54	50	0.20
January 23	56	47	0.05
January 24	56	50	0.07
January 25	57	37	0.00
January 26	55	35	0.00
January 27	60	33	0.00
January 28	65	32	0.00
January 29	73	45	0.00
January 30	n/a	36	0.00
January 31	68	37	0.00

February 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	71	38	0.00
February 2	71	37	0.00
February 3	71	37	0.00
February 4	69	38	0.00
February 5	63	47	0.12
February 6	53	48	0.65
February 7	66	38	0.00
February 8	65	39	0.00
February 9	54	37	0.20
February 10	54	31	0.00
February 11	50	41	0.60
February 12	50	35	0.00
February 13	50	36	0.70
February 14	51	39	0.14
February 15	49	44	1.99
February 16	49	44	1.55
February 17	49	44	1.30
February 18	54	44	0.15
February 19	62	38	0.00
February 20	66	41	0.00
February 21	64	42	0.00
February 22	60	52	2.20
February 23	58	52	0.82
February 24	60	44	0.12
February 25	58	44	0.02
February 26	62	51	0.12
February 27	62	36	0.00
February 28	63	47	0.00

March 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	61	51	0.74
March 2	61	51	1.21
March 3	56	45	1.15
March 4	53	38	0.20
March 5	58	38	0.04
March 6	58	37	0.00
March 7	65	37	0.00
March 8	62	35	0.00
March 9	61	37	0.00
March 10	63	31	0.00
March 11	64	33	0.00
March 12	67	35	0.00
March 13	70	39	0.00
March 14	68	40	0.00
March 15	57	48	0.04
March 16	58	52	0.19
March 17	67	49	0.00
March 18	76	45	0.00
March 19	79	49	0.00
March 20	77	46	0.00
March 21	71	43	0.00
March 22	57	41	0.47
March 23	64	36	0.00
March 24	73	41	0.00
March 25	74	41	0.00
March 26	76	48	0.00
March 27	81	48	0.00
March 28	81	48	0.00
March 29	n/a	n/a	0.00
March 30	74	50	0.00
March 31	77	41	0.00

April 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	75	55	0.00
April 2	74	47	0.00
April 3	65	39	0.00
April 4	67	44	0.00
April 5	73	37	0.00
April 6	79	43	0.00
April 7	78	47	0.07
April 8	57	46	0.20
April 9	56	49	0.05
April 10	59	47	0.05
April 11	69	41	0.00
April 12	73	44	0.00
April 13	73	44	0.00
April 14	72	38	0.00
April 15	65	39	0.00
April 16	70	38	0.00
April 17	79	40	0.00
April 18	83	47	0.00
April 19	88	51	0.00
April 20	92	55	0.00
April 21	93	55	0.00
April 22	90	53	0.00
April 23	86	50	0.00
April 24	71	46	0.00
April 25	70	40	0.00
April 26	70	39	0.00
April 27	70	47	0.00
April 28	65	40	0.00
April 29	64	39	0.00
April 30	n/a	n/a	0.00

May 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	67	39	0.61
May 2	58	52	0.68
May 3	67	52	0.70
May 4	66	50	0.05
May 5	69	57	0.70
May 6	68	52	0.04
May 7	79	51	0.00
May 8	83	50	0.00
May 9	n/a	n/a	0.00
May 10	85	49	0.00
May 11	85	55	0.00
May 12	85	48	0.00
May 13	83	50	0.00
May 14	82	53	0.00
May 15	89	54	0.00
May 16	95	54	0.00
May 17	97	61	0.00
May 18	97	57	0.00
May 19	80	51	0.00
May 20	79	55	0.00
May 21	82	49	0.00
May 22	81	52	0.00
May 23	74	50	0.00
May 24	69	50	0.00
May 25	80	50	0.00
May 26	88	52	0.00
May 27	88	55	0.00
May 28	84	54	0.00
May 29	80	51	0.00
May 30	75	54	0.00
May 31	77	53	0.00

June 2009 St. Helena Weather

Day	High (°F)	Low (°F)
June 1	76	52
June 2	77	53
June 3	77	55
June 4	76	53
June 5	69	51
June 6	73	50
June 7	77	50
June 8	78	48
June 9	74	51
June 10	72	57
June 11	76	51
June 12	75	50
June 13	72	50
June 14	75	49
June 15	77	54
June 16	77	53
June 17	n/a	n/a
June 18	90	56
June 19	91	57
June 20	90	54
June 21	80	51
June 22	89	51
June 23	92	53
June 24	91	55
June 25	86	53
June 26	87	55
June 27	100	55
June 28	103	63
June 29	100	57
June 30	87	53

July 2009 St. Helena Weather

Day	High (°F)	Low (°F)
July 1	87	53
July 2	85	54
July 3	85	53
July 4	85	54
July 5	78	53
July 6	85	52
July 7	83	49
July 8	85	50
July 9	89	n/a
July 10	82	n/a
July 11	n/a	n/a
July 12	86	54
July 13	96	53
July 14	100	58
July 15	98	59
July 16	91	54
July 17	99	55
July 18	99	57
July 19	101	58
July 20	101	55
July 21	83	52
July 22	81	52
July 23	79	54
July 24	79	53
July 25	84	54
July 26	93	53
July 27	94	54
July 28	91	55
July 29	84	57
July 30	85	57
July 31	84	55

August 2009 St. Helena Weather

Day	High (°F)	Low (°F)
August 1	84	53
August 2	83	54
August 3	83	54
August 4	84	54
August 5	83	53
August 6	77	58
August 7	81	52
August 8	89	54
August 9	95	55
August 10	97	58
August 11	94	60
August 12	98	55
August 13	98	63
August 14	94	56
August 15	90	53
August 16	93	54
August 17	91	55
August 18	86	52
August 19	86	55
August 20	82	57
August 21	95	53
August 22	95	56
August 23	76	54
August 24	77	51
August 25	85	54
August 26	86	55
August 27	95	50
August 28	100	61
August 29	102	70
August 30	101	56
August 31	101	54

September 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	n/a	n/a	n/a
September 2	n/a	n/a	n/a
September 3	n/a	n/a	n/a
September 4	n/a	n/a	n/a
September 5	n/a	n/a	n/a
September 6	n/a	n/a	n/a
September 7	n/a	n/a	n/a
September 8	n/a	n/a	n/a
September 9	n/a	n/a	n/a
September 10	n/a	n/a	n/a
September 11	n/a	n/a	n/a
September 12	n/a	n/a	n/a
September 13	n/a	n/a	n/a
September 14	n/a	n/a	n/a
September 15	n/a	n/a	n/a
September 16	n/a	n/a	n/a
September 17	n/a	n/a	n/a
September 18	n/a	n/a	n/a
September 19	n/a	n/a	n/a
September 20	n/a	n/a	n/a
September 21	n/a	n/a	n/a
September 22	n/a	n/a	n/a
September 23	n/a	n/a	n/a
September 24	n/a	n/a	n/a
September 25	n/a	n/a	n/a
September 26	n/a	n/a	n/a
September 27	n/a	n/a	n/a
September 28	n/a	n/a	n/a
September 29	n/a	n/a	n/a
September 30	n/a	n/a	n/a

October 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	83	55	0.00
October 2	84	47	0.00
October 3	84	51	0.00
October 4	72	42	0.00
October 5	70	42	0.00
October 6	75	45	0.00
October 7	79	44	0.00
October 8	79	44	0.00
October 9	72	48	0.00
October 10	72	47	0.00
October 11	70	47	0.00
October 12	61	54	0.00
October 13	60	55	3.60
October 14	69	55	0.50
October 15	68	61	0.20
October 16	81	58	0.00
October 17	79	57	0.00
October 18	76	59	0.00
October 19	67	50	0.60
October 20	70	50	0.00
October 21	70	52	0.00
October 22	75	50	0.00
October 23	79	49	0.00
October 24	78	53	0.00
October 25	85	54	0.00
October 26	84	53	0.00
October 27	78	48	0.00
October 28	64	51	0.00
October 29	70	44	0.00
October 30	74	47	0.00
October 31	73	45	0.00

November 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	77	48	0.00
November 2	78	49	0.00
November 3	79	47	0.00
November 4	71	46	0.00
November 5	62	48	0.00
November 6	60	57	0.25
November 7	65	44	0.00
November 8	65	40	0.00
November 9	n/a	n/a	0.00
November 10	63	47	0.00
November 11	64	51	0.00
November 12	61	44	0.00
November 13	59	38	0.00
November 14	62	39	0.00
November 15	63	35	0.00
November 16	64	36	0.00
November 17	63	34	0.00
November 18	60	39	0.00
November 19	60	34	0.00
November 20	55	n/a	0.60
November 21	58	37	0.00
November 22	54	41	0.00
November 23	72	37	0.00
November 24	64	39	0.00
November 25	72	40	0.00
November 26	66	40	0.00
November 27	60	47	0.05
November 28	67	47	0.01
November 29	71	51	0.00
November 30	70	39	0.00

December 2009 St. Helena Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	65	36	0.00
December 2	65	33	0.00
December 3	47	35	0.00
December 4	58	31	0.00
December 5	58	37	0.00
December 6	58	29	0.00
December 7	46	33	0.00
December 8	45	25	0.00
December 9	46	24	0.00
December 10	49	33	0.00
December 11	46	41	0.35
December 12	52	45	1.30
December 13	52	47	0.62
December 14	54	48	0.00
December 15	55	46	0.00
December 16	54	49	0.44
December 17	61	44	0.00
December 18	63	44	0.00
December 19	63	44	0.01
December 20	56	49	0.05
December 21	56	52	0.17
December 22	56	34	0.00
December 23	61	35	0.00
December 24	54	33	0.00
December 25	61	31	0.00
December 26	58	36	0.01
December 27	54	45	0.41
December 28	53	40	0.00
December 29	51	33	0.00
December 30	58	45	0.17
December 31	53	46	0.01

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Weather Station Details

Years	Station	Coordinates
1907–2023	Saint Helena	location