Washington D.C. Weather in 1940

Historical record of Washington D.C. weather for the year 1940 based on NOAA data.

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1940 Washington D.C. Weather Extremes
Highest temperature	100 °F	July 27
Lowest temperature	7 °F	January 29
Highest daily low	78 °F	July 22
Lowest daily high	20 °F	January 26
Most daily precipitation	2.6 inches	July 23
Most daily snow	9.5 inches	January 24
Total annual precipitation	40.2 inches	-
Total annual snow	22.0 inches	-

What was the hottest temperature in Washington D.C. in 1940?

The highest temperature recorded in Washington D.C. in 1940 was 100 °F which happened on July 27.

Highest Temperatures: All-Time By Year

Highest Temperatures in Washington D.C. in 1940

Rank	Temperature	Date
1	100 °F	Jul 27
2	99 °F	Jul 26
3	97 °F	Jul 28
3	97 °F	Jul 20
5	96 °F	Jul 30
5	96 °F	Jul 22
5	96 °F	Jul 21
8	95 °F	Jul 25
9	94 °F	Jul 29
9	94 °F	Jul 11

What was the coldest temperature in Washington D.C. in 1940?

The lowest temperature recorded in Washington D.C. in 1940 was 7 °F which happened on Jan 29.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Washington D.C. in 1940

Rank	Temperature	Date
1	7 °F	January 29
2	8 °F	January 20
2	8 °F	January 19
4	9 °F	January 30
4	9 °F	January 27
6	11 °F	January 26
7	12 °F	January 10
8	13 °F	January 31
8	13 °F	January 28
10	14 °F	January 4

January 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	25	17	0.00	0.0
January 2	28	17	0.00	0.0
January 3	27	16	0.00	0.0
January 4	31	14	0.00	0.0
January 5	37	15	0.00	0.0
January 6	30	15	0.00	0.0
January 7	28	18	0.13	0.0
January 8	29	23	0.23	5.2
January 9	29	16	0.00	0.0
January 10	36	12	0.00	0.0
January 11	35	29	0.00	0.0
January 12	39	32	0.02	0.0
January 13	39	32	0.00	0.0
January 14	55	36	0.68	0.0
January 15	44	33	0.00	0.0
January 16	37	28	0.00	0.0
January 17	28	17	0.00	0.1
January 18	27	17	0.00	0.0
January 19	26	8	0.02	0.5
January 20	23	8	0.00	0.0
January 21	32	16	0.00	0.0
January 22	40	17	0.00	0.0
January 23	30	23	0.13	0.0
January 24	34	20	0.91	9.5
January 25	27	16	0.00	0.0
January 26	20	11	0.00	0.0
January 27	24	9	0.00	0.0
January 28	26	13	0.00	0.0
January 29	31	7	0.00	0.0
January 30	33	9	0.00	0.0
January 31	37	13	0.00	0.0

February 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	42	16	0.00	0.0
February 2	38	18	0.01	0.1
February 3	39	18	0.00	0.0
February 4	45	32	0.00	0.0
February 5	50	34	0.00	0.0
February 6	43	36	0.07	0.0
February 7	45	36	0.00	0.0
February 8	46	31	0.00	0.0
February 9	57	36	0.00	0.0
February 10	40	35	0.26	0.0
February 11	49	37	0.01	0.0
February 12	64	31	0.00	0.0
February 13	53	41	0.00	0.0
February 14	42	25	0.98	2.5
February 15	38	26	0.00	0.2
February 16	42	26	0.00	0.0
February 17	45	29	0.00	0.0
February 18	40	34	0.68	0.0
February 19	45	38	0.38	0.0
February 20	39	35	0.15	0.0
February 21	41	31	0.01	0.0
February 22	40	24	0.00	0.0
February 23	42	28	0.00	0.0
February 24	49	32	0.00	0.0
February 25	44	26	0.00	0.0
February 26	33	19	0.00	0.0
February 27	38	26	0.18	1.5
February 28	47	34	0.04	0.0
February 29	45	36	0.00	0.0

March 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	49	38	0.00	0.0
March 2	38	35	0.69	0.0
March 3	42	35	0.34	0.0
March 4	51	37	0.18	0.0
March 5	46	39	0.00	0.0
March 6	44	35	0.00	0.0
March 7	44	34	0.00	0.0
March 8	49	32	0.00	0.0
March 9	46	33	0.00	0.0
March 10	46	32	0.00	0.0
March 11	39	26	0.00	0.0
March 12	43	21	0.00	0.0
March 13	38	29	0.00	0.0
March 14	43	32	1.66	0.0
March 15	37	30	0.05	0.4
March 16	50	29	0.00	0.0
March 17	58	29	0.00	0.0
March 18	59	35	0.00	0.0
March 19	60	42	0.02	0.0
March 20	65	40	0.00	0.0
March 21	47	29	0.00	0.0
March 22	45	25	0.00	0.0
March 23	35	22	0.00	0.0
March 24	32	19	0.00	0.0
March 25	33	19	0.00	0.0
March 26	46	25	0.00	0.0
March 27	69	36	0.00	0.0
March 28	63	43	0.00	0.0
March 29	55	41	0.04	0.0
March 30	67	46	0.40	0.0
March 31	70	46	0.04	0.0

April 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
April 1	59	42	0.00	0.0
April 2	60	39	0.00	0.0
April 3	52	45	0.13	0.0
April 4	75	44	0.07	0.0
April 5	55	43	0.00	0.0
April 6	60	36	0.00	0.0
April 7	63	39	0.00	0.0
April 8	58	52	2.13	0.0
April 9	57	45	0.02	0.0
April 10	62	40	0.00	0.0
April 11	70	47	0.00	0.0
April 12	60	32	0.66	0.4
April 13	41	28	0.00	0.1
April 14	45	30	0.00	0.0
April 15	52	36	0.19	0.0
April 16	66	46	0.06	0.0
April 17	59	49	0.41	0.0
April 18	72	48	0.01	0.0
April 19	65	47	0.76	0.0
April 20	48	43	1.71	0.0
April 21	47	40	0.04	0.0
April 22	54	43	0.00	0.0
April 23	62	38	0.00	0.0
April 24	51	41	0.00	0.0
April 25	61	36	0.00	0.0
April 26	59	46	0.00	0.0
April 27	61	43	0.00	0.0
April 28	65	45	0.00	0.0
April 29	74	44	0.00	0.0
April 30	82	51	0.00	0.0

May 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	75	53	0.41
May 2	67	52	0.01
May 3	55	46	0.03
May 4	55	45	0.00
May 5	72	48	0.00
May 6	85	47	0.00
May 7	86	66	0.00
May 8	80	62	0.00
May 9	66	54	0.00
May 10	69	48	0.00
May 11	70	49	0.00
May 12	67	43	0.00
May 13	86	53	0.01
May 14	92	64	0.00
May 15	88	63	0.00
May 16	69	58	0.76
May 17	67	51	0.00
May 18	78	53	0.00
May 19	89	58	0.00
May 20	81	59	1.39
May 21	78	62	0.00
May 22	77	65	0.00
May 23	72	60	0.00
May 24	62	56	0.00
May 25	66	56	0.09
May 26	68	60	0.00
May 27	73	59	0.04
May 28	78	55	0.00
May 29	81	56	0.00
May 30	58	54	0.32
May 31	75	55	0.04

June 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	82	62	0.00
June 2	82	59	0.00
June 3	87	60	0.00
June 4	92	62	0.00
June 5	89	70	0.00
June 6	91	68	0.00
June 7	89	68	0.00
June 8	84	69	0.09
June 9	86	69	0.00
June 10	82	67	0.00
June 11	79	64	0.00
June 12	89	72	0.00
June 13	92	70	0.00
June 14	88	71	0.00
June 15	90	72	0.00
June 16	85	74	0.00
June 17	74	68	0.01
June 18	75	67	0.01
June 19	88	70	0.00
June 20	74	62	0.00
June 21	71	51	0.00
June 22	75	51	0.00
June 23	82	63	0.00
June 24	93	72	0.02
June 25	81	70	0.00
June 26	79	62	0.01
June 27	84	59	0.00
June 28	91	69	0.63
June 29	85	63	0.04
June 30	80	60	0.05

July 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	76	59	0.25
July 2	80	55	0.00
July 3	73	58	1.72
July 4	75	58	0.37
July 5	79	58	0.00
July 6	83	58	0.00
July 7	82	59	0.00
July 8	86	62	0.00
July 9	87	69	0.00
July 10	92	68	0.00
July 11	94	73	0.00
July 12	81	63	0.08
July 13	76	60	0.35
July 14	80	58	0.00
July 15	84	60	0.00
July 16	85	69	0.01
July 17	85	68	0.00
July 18	88	70	0.00
July 19	93	70	0.00
July 20	97	74	0.00
July 21	96	77	0.00
July 22	96	78	0.00
July 23	90	71	2.60
July 24	89	72	0.00
July 25	95	73	0.00
July 26	99	76	0.00
July 27	100	76	0.00
July 28	97	76	0.00
July 29	94	75	0.00
July 30	96	72	0.00
July 31	92	72	0.35

August 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	81	68	0.00
August 2	79	63	0.00
August 3	79	63	0.00
August 4	86	67	0.00
August 5	87	70	0.06
August 6	91	75	0.00
August 7	83	73	0.02
August 8	84	70	0.00
August 9	86	66	0.00
August 10	85	66	0.00
August 11	81	70	0.00
August 12	87	72	0.00
August 13	90	74	0.00
August 14	82	74	0.02
August 15	77	68	0.31
August 16	80	69	0.12
August 17	84	73	0.11
August 18	87	72	0.00
August 19	81	67	0.06
August 20	75	61	0.00
August 21	76	58	0.00
August 22	78	63	0.01
August 23	82	62	0.00
August 24	74	61	0.00
August 25	65	57	0.13
August 26	73	57	1.53
August 27	69	60	0.22
August 28	71	65	0.15
August 29	69	64	0.04
August 30	82	66	0.24
August 31	82	70	1.98

September 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	84	69	0.00
September 2	83	65	0.00
September 3	81	64	0.00
September 4	80	65	0.00
September 5	81	62	0.00
September 6	78	59	0.00
September 7	75	57	0.02
September 8	71	61	0.32
September 9	81	65	0.01
September 10	77	65	0.06
September 11	68	55	0.00
September 12	69	50	0.00
September 13	74	50	0.00
September 14	75	52	0.00
September 15	75	57	0.00
September 16	72	61	0.00
September 17	77	56	0.00
September 18	81	55	0.00
September 19	83	61	0.00
September 20	88	64	0.00
September 21	92	66	0.00
September 22	79	63	0.00
September 23	79	59	0.00
September 24	81	66	0.00
September 25	76	47	0.93
September 26	58	42	0.00
September 27	65	42	0.00
September 28	70	43	0.00
September 29	73	46	0.00
September 30	64	54	0.00

October 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	59	53	0.60	0.0
October 2	56	51	0.44	0.0
October 3	73	54	0.00	0.0
October 4	73	56	0.00	0.0
October 5	71	52	0.00	0.0
October 6	74	57	0.00	0.0
October 7	80	60	0.00	0.0
October 8	66	57	0.25	0.0
October 9	62	48	0.00	0.0
October 10	65	47	0.00	0.0
October 11	72	44	0.00	0.0
October 12	77	52	0.00	0.0
October 13	83	52	0.00	0.0
October 14	74	59	0.00	0.0
October 15	77	50	0.02	0.0
October 16	51	45	0.01	0.0
October 17	59	46	0.00	0.0
October 18	58	43	0.00	0.0
October 19	46	34	0.60	0.1
October 20	42	33	0.00	1.4
October 21	56	32	0.00	0.0
October 22	53	33	0.00	0.0
October 23	71	38	0.00	0.0
October 24	78	56	0.01	0.0
October 25	60	50	0.02	0.0
October 26	66	48	0.00	0.0
October 27	58	43	0.00	0.0
October 28	50	46	0.00	0.0
October 29	48	43	0.03	0.0
October 30	58	47	0.17	0.0
October 31	64	45	0.00	0.0

November 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	60	46	0.26
November 2	66	54	0.99
November 3	66	46	0.00
November 4	70	39	0.00
November 5	71	54	0.00
November 6	64	45	0.00
November 7	50	41	0.00
November 8	47	38	0.00
November 9	53	35	0.00
November 10	62	41	0.00
November 11	66	50	0.11
November 12	64	47	0.56
November 13	47	43	0.59
November 14	46	43	1.30
November 15	46	35	0.16
November 16	41	32	0.00
November 17	52	33	0.00
November 18	53	42	0.00
November 19	53	32	0.00
November 20	63	42	0.00
November 21	66	47	0.00
November 22	75	56	0.00
November 23	60	50	0.00
November 24	52	43	0.25
November 25	45	36	0.00
November 26	40	28	1.04
November 27	47	35	0.00
November 28	38	31	0.00
November 29	50	30	0.00
November 30	50	32	0.00

December 1940 Washington D.C. Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	52	38	0.00
December 2	45	31	0.00
December 3	39	20	0.00
December 4	35	16	0.00
December 5	40	34	0.15
December 6	42	28	0.00
December 7	57	34	0.01
December 8	50	34	0.00
December 9	47	31	0.00
December 10	63	38	0.00
December 11	53	42	0.00
December 12	51	38	0.05
December 13	62	38	0.12
December 14	39	33	0.12
December 15	43	36	0.00
December 16	51	40	0.45
December 17	51	35	0.00
December 18	45	30	0.00
December 19	45	28	0.00
December 20	54	37	0.00
December 21	52	35	0.00
December 22	60	31	0.00
December 23	50	35	0.00
December 24	52	27	0.00
December 25	61	34	0.10
December 26	53	50	0.31
December 27	52	48	0.20
December 28	54	46	0.72
December 29	63	49	0.04
December 30	49	42	0.00
December 31	49	38	0.00

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Weather Station Details

Years	Station	Coordinates
1945–2024	Washington Reagan Airport	location
1851–1945	Washington D.C.	location