St. Louis Weather in 2009

Historical record of St. Louis, Missouri weather for the year 2009 based on NOAA data.

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2009 St. Louis Weather Extremes
Highest temperature	98 °F	August 9
Lowest temperature	0 °F	January 16
Highest daily low	80 °F	June 22
Lowest daily high	13 °F	January 15
Most daily precipitation	2.7 inches	October 8
Most daily snow	3.5 inches	January 27
Total annual precipitation	50.9 inches	-
Total annual snow	12.3 inches	-

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

The highest temperature recorded in St. Louis, Missouri in 2009 was 98 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Louis in 2009

Rank	Temperature	Date
1	98 °F	Aug 9
1	98 °F	Jun 27
3	97 °F	Aug 8
3	97 °F	Jun 22
5	96 °F	Jun 25
5	96 °F	Jun 23
7	95 °F	Jun 24
7	95 °F	Jun 19
9	94 °F	Jun 26
9	94 °F	Jun 21
9	94 °F	Jun 18

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

The lowest temperature recorded in St. Louis, Missouri in 2009 was 0 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Louis in 2009

Rank	Temperature	Date
1	0 °F	January 16
1	0 °F	January 15
3	6 °F	January 14
4	8 °F	February 3
5	9 °F	February 4
6	10 °F	January 24
7	11 °F	December 10
8	12 °F	January 28
9	13 °F	January 25
10	14 °F	December 9

January 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	43	22	0.00	0.0
January 2	47	30	0.00	0.0
January 3	61	39	0.00	0.0
January 4	58	23	0.00	0.0
January 5	30	19	0.00	0.0
January 6	33	27	0.01	0.0
January 7	41	30	0.00	0.0
January 8	35	21	0.00	0.0
January 9	61	32	0.00	0.0
January 10	53	23	0.02	0.1
January 11	42	21	0.00	0.0
January 12	43	23	0.00	0.0
January 13	36	15	0.00	0.0
January 14	40	6	0.00	0.0
January 15	13	0	0.00	0.0
January 16	16	0	0.00	0.0
January 17	45	16	0.00	0.0
January 18	38	33	0.00	0.0
January 19	34	18	0.00	0.0
January 20	30	18	0.00	0.1
January 21	48	19	0.00	0.0
January 22	58	25	0.00	0.0
January 23	44	24	0.00	0.0
January 24	24	10	0.00	0.0
January 25	18	13	0.07	0.9
January 26	20	15	0.17	1.0
January 27	19	17	0.42	3.5
January 28	27	12	0.08	1.4
January 29	36	21	0.00	0.0
January 30	34	20	0.00	0.0
January 31	55	17	0.00	0.0

February 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	47	33	0.00	0.0
February 2	40	26	0.00	0.0
February 3	31	8	0.00	0.0
February 4	25	9	0.00	0.0
February 5	45	18	0.00	0.0
February 6	66	30	0.00	0.0
February 7	70	54	0.00	0.0
February 8	58	34	0.00	0.0
February 9	71	40	0.10	0.0
February 10	71	52	0.44	0.0
February 11	57	39	1.22	0.0
February 12	57	35	0.00	0.0
February 13	51	39	0.01	0.0
February 14	41	26	0.00	0.0
February 15	38	24	0.00	0.0
February 16	41	20	0.00	0.0
February 17	45	31	0.00	0.0
February 18	54	30	0.00	0.0
February 19	31	19	0.00	0.0
February 20	44	20	0.00	0.0
February 21	47	26	0.03	0.1
February 22	35	19	0.00	0.0
February 23	38	19	0.00	0.0
February 24	49	30	0.00	0.0
February 25	70	35	0.00	0.0
February 26	68	44	0.53	0.0
February 27	44	31	0.00	0.0
February 28	32	25	0.00	0.0

March 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	33	23	0.00	0.0
March 2	32	20	0.00	0.0
March 3	36	17	0.00	0.0
March 4	59	26	0.00	0.0
March 5	69	44	0.00	0.0
March 6	82	61	0.00	0.0
March 7	77	63	0.00	0.0
March 8	75	41	0.00	0.0
March 9	56	37	0.07	0.0
March 10	80	34	0.49	0.0
March 11	37	26	0.00	0.0
March 12	35	24	0.00	0.0
March 13	48	24	0.00	0.0
March 14	57	31	0.00	0.0
March 15	61	39	0.00	0.0
March 16	70	46	0.00	0.0
March 17	79	50	0.00	0.0
March 18	70	49	0.29	0.0
March 19	58	41	0.00	0.0
March 20	57	34	0.00	0.0
March 21	60	43	0.04	0.0
March 22	69	49	0.00	0.0
March 23	75	56	0.00	0.0
March 24	70	52	0.54	0.0
March 25	60	42	0.00	0.0
March 26	63	47	0.00	0.0
March 27	56	42	0.00	0.0
March 28	45	35	1.14	0.0
March 29	50	33	0.37	1.8
March 30	66	32	0.00	0.0
March 31	62	45	0.10	0.0

April 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	65	40	0.00	0.0
April 2	62	42	0.24	0.0
April 3	59	38	0.00	0.0
April 4	66	38	0.00	0.0
April 5	67	37	0.09	0.0
April 6	43	35	0.04	0.1
April 7	53	33	0.00	0.0
April 8	63	36	0.00	0.0
April 9	58	35	1.11	0.0
April 10	51	43	0.33	0.0
April 11	59	34	0.00	0.0
April 12	54	38	0.13	0.0
April 13	52	43	0.50	0.0
April 14	48	42	0.00	0.0
April 15	63	36	0.00	0.0
April 16	63	42	0.00	0.0
April 17	74	45	0.00	0.0
April 18	71	54	0.23	0.0
April 19	63	52	0.45	0.0
April 20	66	44	0.01	0.0
April 21	62	41	0.00	0.0
April 22	75	44	0.00	0.0
April 23	83	50	0.00	0.0
April 24	90	70	0.00	0.0
April 25	87	72	0.00	0.0
April 26	86	70	0.00	0.0
April 27	75	65	0.45	0.0
April 28	65	53	0.01	0.0
April 29	75	56	0.42	0.0
April 30	70	62	0.05	0.0

May 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	65	50	0.16
May 2	67	51	0.01
May 3	66	53	0.00
May 4	71	51	0.00
May 5	76	52	0.02
May 6	70	60	0.10
May 7	81	60	0.14
May 8	73	62	0.67
May 9	68	55	0.00
May 10	66	49	0.00
May 11	73	55	0.00
May 12	74	50	0.00
May 13	84	64	0.13
May 14	75	61	0.00
May 15	86	63	0.47
May 16	64	50	0.03
May 17	66	45	0.00
May 18	71	47	0.00
May 19	81	55	0.00
May 20	82	56	0.00
May 21	86	60	0.00
May 22	86	66	0.00
May 23	84	69	0.03
May 24	85	69	0.03
May 25	76	65	2.01
May 26	83	69	0.07
May 27	85	66	0.40
May 28	67	60	0.24
May 29	81	57	0.00
May 30	88	61	0.21
May 31	81	57	0.00

June 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	92	68	0.00
June 2	88	68	0.92
June 3	69	59	0.13
June 4	72	54	0.00
June 5	79	53	0.00
June 6	82	62	0.00
June 7	80	65	0.01
June 8	86	67	0.21
June 9	76	62	0.02
June 10	87	68	1.14
June 11	83	66	0.14
June 12	75	63	0.00
June 13	85	64	0.00
June 14	80	66	0.00
June 15	77	67	1.86
June 16	82	68	1.59
June 17	93	71	0.00
June 18	94	78	0.00
June 19	95	75	0.21
June 20	91	74	0.07
June 21	94	76	0.00
June 22	97	80	0.00
June 23	96	79	0.00
June 24	95	74	0.00
June 25	96	79	0.00
June 26	94	78	0.00
June 27	98	74	0.02
June 28	85	71	0.10
June 29	91	66	0.00
June 30	87	67	0.00

July 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	82	66	0.00
July 2	84	65	0.00
July 3	86	64	0.00
July 4	77	68	1.78
July 5	76	67	0.08
July 6	85	64	0.00
July 7	88	67	0.00
July 8	89	70	0.00
July 9	91	70	0.00
July 10	87	75	0.00
July 11	90	77	0.00
July 12	79	68	0.90
July 13	85	64	0.00
July 14	82	68	0.00
July 15	87	72	0.36
July 16	89	70	0.74
July 17	78	63	0.00
July 18	73	63	0.00
July 19	79	64	0.00
July 20	84	59	0.00
July 21	78	67	0.00
July 22	79	65	0.00
July 23	87	63	0.00
July 24	91	66	0.00
July 25	86	73	0.00
July 26	85	67	0.00
July 27	88	67	0.00
July 28	93	70	0.25
July 29	82	67	0.08
July 30	82	69	0.01
July 31	83	63	0.00

August 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	79	67	0.09
August 2	83	65	0.00
August 3	93	67	0.00
August 4	88	74	0.00
August 5	89	71	0.00
August 6	86	66	0.00
August 7	89	70	0.00
August 8	97	76	0.00
August 9	98	79	0.00
August 10	88	72	0.25
August 11	88	71	0.00
August 12	85	68	0.00
August 13	87	65	0.00
August 14	89	66	0.00
August 15	91	72	0.00
August 16	91	75	0.11
August 17	90	71	1.18
August 18	83	69	0.00
August 19	93	73	0.06
August 20	81	67	0.67
August 21	82	64	0.02
August 22	77	59	0.00
August 23	78	59	0.00
August 24	80	59	0.00
August 25	85	64	0.00
August 26	89	68	0.00
August 27	90	72	0.00
August 28	77	68	0.10
August 29	80	59	0.00
August 30	68	54	0.00
August 31	73	58	0.00

September 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	75	52	0.00
September 2	77	56	0.00
September 3	83	56	0.00
September 4	82	64	0.00
September 5	74	66	1.48
September 6	77	67	0.01
September 7	83	65	0.00
September 8	82	64	0.00
September 9	83	63	0.00
September 10	83	65	0.00
September 11	83	65	0.00
September 12	83	64	0.00
September 13	81	62	0.00
September 14	81	60	0.00
September 15	81	68	0.00
September 16	84	64	0.00
September 17	80	60	0.00
September 18	80	53	0.00
September 19	83	60	0.00
September 20	69	61	0.95
September 21	82	65	0.37
September 22	82	66	0.03
September 23	79	66	0.00
September 24	74	68	0.10
September 25	79	63	0.00
September 26	71	58	0.22
September 27	83	55	0.00
September 28	70	53	0.00
September 29	67	49	0.00
September 30	69	47	0.00

October 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	74	56	1.05
October 2	66	51	0.00
October 3	61	48	0.00
October 4	68	45	0.00
October 5	70	45	0.00
October 6	71	51	0.42
October 7	66	44	0.00
October 8	59	52	2.66
October 9	55	42	0.64
October 10	59	37	0.00
October 11	54	37	0.00
October 12	57	43	0.05
October 13	50	44	0.80
October 14	47	45	0.78
October 15	50	45	0.16
October 16	47	43	0.00
October 17	53	36	0.00
October 18	59	34	0.00
October 19	74	45	0.00
October 20	77	52	0.00
October 21	66	54	0.00
October 22	63	56	1.91
October 23	63	45	0.08
October 24	62	42	0.00
October 25	66	52	0.29
October 26	56	49	0.12
October 27	53	48	0.51
October 28	58	52	0.00
October 29	69	49	1.41
October 30	70	49	1.50
October 31	56	39	0.00

November 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	62	37	0.00
November 2	70	46	0.00
November 3	57	41	0.00
November 4	64	44	0.00
November 5	61	36	0.00
November 6	72	47	0.00
November 7	78	56	0.00
November 8	76	57	0.00
November 9	69	56	0.00
November 10	58	51	0.00
November 11	62	41	0.00
November 12	59	35	0.00
November 13	65	43	0.00
November 14	71	52	0.00
November 15	56	46	0.70
November 16	52	45	1.72
November 17	49	44	0.30
November 18	46	43	0.09
November 19	52	39	0.03
November 20	59	36	0.00
November 21	64	43	0.00
November 22	60	43	0.00
November 23	60	45	0.00
November 24	56	48	0.26
November 25	54	41	0.01
November 26	43	33	0.00
November 27	56	31	0.00
November 28	73	40	0.00
November 29	58	41	0.00
November 30	48	39	0.00

December 2009 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	57	39	0.00	0.0
December 2	43	34	0.26	0.0
December 3	39	26	0.00	0.0
December 4	33	22	0.00	0.0
December 5	41	22	0.00	0.0
December 6	39	25	0.01	0.1
December 7	39	33	0.00	0.0
December 8	43	33	0.57	0.0
December 9	44	14	0.02	0.0
December 10	28	11	0.00	0.0
December 11	41	21	0.00	0.0
December 12	41	30	0.46	0.0
December 13	45	37	0.56	0.0
December 14	54	30	0.00	0.0
December 15	30	20	0.00	0.0
December 16	38	18	0.00	0.0
December 17	54	26	0.00	0.0
December 18	45	32	0.04	0.1
December 19	33	27	0.02	0.1
December 20	33	26	0.00	0.0
December 21	37	31	0.00	0.0
December 22	41	31	0.06	0.0
December 23	52	40	1.10	0.0
December 24	52	46	0.95	0.0
December 25	52	22	0.08	0.3
December 26	31	27	0.00	0.0
December 27	30	20	0.04	1.6
December 28	39	22	0.00	0.0
December 29	30	21	0.00	0.0
December 30	36	29	0.08	1.1
December 31	37	19	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1939–2024	St. Louis International Airport	location
1893–1938	St. Louis	location