St. Louis Weather in 1940

Historical record of St. Louis, Missouri weather for the year 1940 based on NOAA data.

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1940 St. Louis Weather Extremes
Highest temperature	102 °F	July 29
Lowest temperature	-14 °F	January 19
Highest daily low	79 °F	July 25
Lowest daily high	4 °F	January 18
Most daily precipitation	1.7 inches	October 6
Most daily snow	5.9 inches	January 7
Total annual precipitation	24.7 inches	-

What was the hottest temperature in St. Louis in 1940?

The highest temperature recorded in St. Louis, Missouri in 1940 was 102 °F which happened on July 29.

Highest Temperatures: All-Time By Year

Highest Temperatures in St. Louis in 1940

Rank	Temperature	Date
1	102 °F	Jul 29
2	101 °F	Jul 28
2	101 °F	Jul 25
4	99 °F	Aug 2
4	99 °F	Jul 26
6	98 °F	Aug 1
6	98 °F	Jul 31
6	98 °F	Jul 24
9	97 °F	Aug 17
9	97 °F	Aug 3
9	97 °F	Jul 30

What was the coldest temperature in St. Louis in 1940?

The lowest temperature recorded in St. Louis, Missouri in 1940 was -14 °F which happened on Jan 19.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in St. Louis in 1940

Rank	Temperature	Date
1	-14 °F	January 19
2	-13 °F	January 18
3	-10 °F	January 5
4	-7 °F	January 26
4	-7 °F	January 25
6	-4 °F	January 24
7	-3 °F	January 27
7	-3 °F	January 2
9	-1 °F	January 21
9	-1 °F	January 4

January 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	16	2	0.00	0.0
January 2	14	-3	0.00	n/a
January 3	20	0	0.00	0.0
January 4	24	-1	0.01	0.2
January 5	12	-10	0.00	n/a
January 6	17	1	0.03	n/a
January 7	24	15	0.21	5.9
January 8	25	16	0.00	0.0
January 9	28	10	0.02	0.3
January 10	36	27	0.08	0.3
January 11	40	32	0.00	n/a
January 12	32	18	0.00	n/a
January 13	35	24	0.29	n/a
January 14	35	21	0.10	0.0
January 15	27	10	0.00	n/a
January 16	38	11	0.00	n/a
January 17	17	4	0.10	1.2
January 18	4	-13	0.03	1.9
January 19	10	-14	0.00	n/a
January 20	13	4	0.00	0.0
January 21	18	-1	0.00	n/a
January 22	25	3	0.00	n/a
January 23	25	8	0.03	0.6
January 24	14	-4	0.00	0.0
January 25	5	-7	0.00	n/a
January 26	13	-7	0.00	n/a
January 27	21	-3	0.00	n/a
January 28	34	1	0.00	n/a
January 29	32	14	0.00	0.0
January 30	29	12	0.00	0.0
January 31	39	16	0.00	n/a

February 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	37	30	0.08	0.0
February 2	30	17	0.00	0.0
February 3	32	12	0.00	0.0
February 4	38	31	0.00	0.0
February 5	38	29	0.00	0.0
February 6	33	27	0.00	0.0
February 7	32	26	0.00	0.0
February 8	46	31	0.00	0.0
February 9	35	27	0.00	0.0
February 10	33	23	0.00	0.0
February 11	60	26	0.00	0.0
February 12	44	31	0.00	0.0
February 13	33	27	0.00	0.0
February 14	38	23	0.00	0.0
February 15	47	30	0.00	0.0
February 16	53	35	0.00	0.0
February 17	40	30	0.12	0.0
February 18	34	32	0.41	1.6
February 19	34	32	0.31	1.3
February 20	35	33	0.03	0.0
February 21	34	29	0.02	0.0
February 22	34	24	0.00	0.0
February 23	41	28	0.13	0.0
February 24	34	17	0.05	0.3
February 25	27	8	0.00	0.0
February 26	43	24	0.00	0.0
February 27	44	31	0.31	0.0
February 28	38	28	0.00	0.0
February 29	59	27	0.00	0.0

March 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	53	33	0.01	n/a
March 2	70	45	0.78	n/a
March 3	45	37	0.00	n/a
March 4	40	33	0.00	n/a
March 5	42	31	0.00	n/a
March 6	46	30	0.00	0.0
March 7	40	32	0.00	n/a
March 8	46	27	0.00	n/a
March 9	46	27	0.00	0.0
March 10	42	34	0.00	0.0
March 11	37	30	0.02	n/a
March 12	37	31	0.70	n/a
March 13	38	28	0.09	0.0
March 14	30	25	0.00	0.0
March 15	57	22	0.00	n/a
March 16	61	30	0.00	n/a
March 17	78	44	0.00	n/a
March 18	59	36	0.16	n/a
March 19	60	33	0.01	n/a
March 20	47	34	0.00	n/a
March 21	55	30	0.00	n/a
March 22	39	22	0.01	0.0
March 23	37	20	0.03	0.1
March 24	34	19	0.03	0.3
March 25	35	18	0.00	n/a
March 26	49	28	0.00	n/a
March 27	72	43	0.07	n/a
March 28	67	54	0.36	n/a
March 29	72	52	0.00	n/a
March 30	75	50	0.00	n/a
March 31	84	59	0.00	n/a

April 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	86	55	0.00	n/a
April 2	83	60	0.00	n/a
April 3	76	54	0.17	n/a
April 4	61	40	0.00	n/a
April 5	53	36	0.00	n/a
April 6	56	31	0.00	n/a
April 7	54	46	0.23	n/a
April 8	46	40	0.01	n/a
April 9	59	34	0.00	n/a
April 10	59	46	0.01	n/a
April 11	54	28	0.66	0.3
April 12	40	24	0.00	0.0
April 13	56	31	0.00	n/a
April 14	78	37	0.00	n/a
April 15	87	59	0.00	n/a
April 16	75	53	0.03	n/a
April 17	70	39	0.41	n/a
April 18	49	37	0.00	n/a
April 19	48	40	0.01	n/a
April 20	61	40	0.00	n/a
April 21	61	33	0.00	n/a
April 22	65	44	0.29	n/a
April 23	58	44	0.03	n/a
April 24	61	39	0.00	n/a
April 25	65	45	0.00	n/a
April 26	59	43	0.01	n/a
April 27	67	42	0.00	n/a
April 28	80	50	0.21	n/a
April 29	79	60	0.06	n/a
April 30	78	43	1.36	n/a

May 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	43	38	0.12
May 2	62	39	0.00
May 3	60	41	0.00
May 4	67	37	0.00
May 5	85	50	0.00
May 6	83	64	0.00
May 7	92	59	0.00
May 8	81	56	0.00
May 9	72	50	0.00
May 10	73	47	0.00
May 11	70	48	0.00
May 12	84	49	0.00
May 13	90	62	0.00
May 14	82	53	0.25
May 15	54	48	0.02
May 16	72	45	0.00
May 17	61	51	0.51
May 18	75	55	0.48
May 19	75	54	0.44
May 20	84	58	0.00
May 21	84	60	0.32
May 22	74	58	0.00
May 23	72	53	0.00
May 24	74	52	0.00
May 25	66	52	0.10
May 26	68	51	0.02
May 27	76	52	0.00
May 28	75	55	0.00
May 29	73	52	0.01
May 30	76	53	0.00
May 31	72	54	0.00

June 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	81	58	0.00
June 2	86	57	0.00
June 3	88	64	0.00
June 4	86	65	0.00
June 5	93	68	0.00
June 6	94	70	0.00
June 7	85	68	0.30
June 8	90	68	0.00
June 9	92	66	0.00
June 10	88	70	0.00
June 11	84	71	0.49
June 12	77	66	0.00
June 13	82	65	0.00
June 14	83	64	0.06
June 15	90	68	0.00
June 16	89	68	0.10
June 17	87	72	0.05
June 18	88	70	0.00
June 19	86	67	0.00
June 20	75	59	0.00
June 21	82	55	0.00
June 22	90	63	0.00
June 23	88	70	0.21
June 24	78	59	0.00
June 25	83	57	0.00
June 26	94	58	0.00
June 27	90	74	0.00
June 28	83	66	0.96
June 29	78	58	0.00
June 30	88	60	0.00

July 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
July 1	88	67	0.00	n/a
July 2	83	64	0.00	n/a
July 3	81	58	0.00	n/a
July 4	82	52	0.00	n/a
July 5	86	55	0.00	n/a
July 6	89	58	0.00	n/a
July 7	88	63	0.00	n/a
July 8	86	64	0.00	n/a
July 9	90	65	0.00	n/a
July 10	96	69	0.00	n/a
July 11	92	72	0.00	n/a
July 12	77	59	0.00	n/a
July 13	79	53	0.00	n/a
July 14	87	58	0.00	n/a
July 15	94	67	0.00	n/a
July 16	82	60	1.30	n/a
July 17	84	60	0.00	n/a
July 18	83	63	0.00	n/a
July 19	91	64	0.00	n/a
July 20	89	69	0.00	n/a
July 21	90	69	0.00	n/a
July 22	91	72	0.00	n/a
July 23	91	73	0.00	n/a
July 24	98	74	0.00	n/a
July 25	101	79	0.00	n/a
July 26	99	77	0.00	n/a
July 27	95	75	0.00	n/a
July 28	101	76	0.00	n/a
July 29	102	75	0.00	n/a
July 30	97	75	0.00	n/a
July 31	98	75	0.00	n/a

August 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	98	72	0.00
August 2	99	76	0.00
August 3	97	75	0.00
August 4	89	74	0.01
August 5	95	72	0.34
August 6	87	67	0.00
August 7	87	63	0.00
August 8	90	69	0.00
August 9	78	69	0.01
August 10	77	68	0.38
August 11	84	69	0.22
August 12	89	72	0.00
August 13	92	72	0.04
August 14	94	70	0.00
August 15	92	72	0.00
August 16	96	68	0.00
August 17	97	72	0.10
August 18	77	65	0.62
August 19	75	57	0.00
August 20	75	55	0.00
August 21	80	50	0.00
August 22	84	57	0.00
August 23	79	61	0.00
August 24	86	55	0.00
August 25	92	67	0.00
August 26	93	70	0.04
August 27	85	69	1.02
August 28	85	68	0.02
August 29	89	67	0.01
August 30	85	66	0.00
August 31	83	62	0.02

September 1940 St. Louis Weather

Day	High (°F)	Low (°F)
September 1	81	57
September 2	83	56
September 3	89	61
September 4	88	62
September 5	88	59
September 6	88	63
September 7	93	63
September 8	95	69
September 9	96	66
September 10	66	47
September 11	65	42
September 12	76	44
September 13	82	46
September 14	82	56
September 15	79	54
September 16	76	58
September 17	88	61
September 18	93	63
September 19	94	62
September 20	96	61
September 21	96	65
September 22	92	67
September 23	79	70
September 24	78	54
September 25	63	44
September 26	64	35
September 27	70	36
September 28	78	37
September 29	80	43
September 30	76	45

October 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	75	43	0.00
October 2	79	42	0.00
October 3	80	47	0.00
October 4	68	59	0.42
October 5	90	61	0.00
October 6	88	58	1.65
October 7	65	49	0.00
October 8	70	45	0.00
October 9	73	40	0.00
October 10	76	49	0.00
October 11	76	55	0.04
October 12	82	49	0.00
October 13	88	58	0.00
October 14	79	48	0.28
October 15	61	42	0.00
October 16	64	36	0.00
October 17	68	42	0.00
October 18	65	38	0.00
October 19	78	48	0.00
October 20	66	42	0.00
October 21	71	46	0.00
October 22	86	53	0.00
October 23	85	60	0.00
October 24	85	56	0.00
October 25	87	63	0.00
October 26	86	57	0.00
October 27	84	54	0.00
October 28	82	64	0.00
October 29	73	46	0.00
October 30	72	40	0.00
October 31	68	40	0.02

November 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	62	45	0.00	n/a
November 2	75	43	0.00	n/a
November 3	78	45	0.00	n/a
November 4	71	55	0.03	n/a
November 5	61	40	0.00	n/a
November 6	49	31	0.00	n/a
November 7	53	28	0.00	n/a
November 8	57	29	0.00	n/a
November 9	50	41	0.23	n/a
November 10	60	44	0.03	n/a
November 11	60	26	1.38	n/a
November 12	34	20	0.00	n/a
November 13	27	15	0.00	0.0
November 14	25	13	0.00	n/a
November 15	29	11	0.00	n/a
November 16	50	21	0.00	n/a
November 17	56	31	0.00	n/a
November 18	60	29	0.00	n/a
November 19	68	40	0.00	n/a
November 20	61	42	0.10	n/a
November 21	70	39	0.13	n/a
November 22	56	33	0.00	n/a
November 23	49	41	0.23	n/a
November 24	42	28	0.00	n/a
November 25	43	27	0.03	n/a
November 26	38	32	0.78	n/a
November 27	34	25	0.00	0.0
November 28	44	18	0.00	n/a
November 29	49	36	0.00	n/a
November 30	62	30	0.00	n/a

December 1940 St. Louis Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	33	24	0.00	n/a
December 2	41	16	0.00	n/a
December 3	26	11	0.00	n/a
December 4	53	24	0.00	n/a
December 5	44	30	0.00	n/a
December 6	61	34	0.00	n/a
December 7	49	36	0.00	n/a
December 8	57	35	0.00	n/a
December 9	70	33	0.00	n/a
December 10	48	33	0.00	n/a
December 11	36	31	1.06	0.0
December 12	37	34	0.16	n/a
December 13	35	29	0.14	n/a
December 14	34	29	0.01	n/a
December 15	42	32	0.78	n/a
December 16	36	26	0.00	0.0
December 17	34	20	0.00	0.0
December 18	38	28	0.01	n/a
December 19	49	35	0.00	n/a
December 20	55	34	0.00	n/a
December 21	55	27	0.00	n/a
December 22	61	34	0.00	n/a
December 23	57	34	0.00	n/a
December 24	62	31	0.03	n/a
December 25	53	48	0.06	n/a
December 26	52	39	0.02	n/a
December 27	40	37	0.16	n/a
December 28	40	35	0.02	n/a
December 29	40	35	0.00	n/a
December 30	40	36	0.00	n/a
December 31	46	36	0.24	n/a

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Weather Station Details

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