Sioux City Weather in 1970

Historical record of Sioux City, Iowa weather for the year 1970 based on NOAA data.

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1970 Sioux City Weather Extremes
Highest temperature	101 °F	June 28
Lowest temperature	-26 °F	January 21
Highest daily low	76 °F	June 29
Lowest daily high	-5 °F	January 18
Most daily precipitation	2.9 inches	September 2
Most daily snow	5.9 inches	March 9
Total annual precipitation	28.8 inches	-
Total annual snow	35.2 inches	-

What was the hottest temperature in Sioux City in 1970?

The highest temperature recorded in Sioux City, Iowa in 1970 was 101 °F which happened on June 28.

Highest Temperatures: All-Time By Year

Highest Temperatures in Sioux City in 1970

Rank	Temperature	Date
1	101 °F	Jun 28
2	100 °F	Jun 29
3	99 °F	Aug 29
4	98 °F	Sep 1
5	97 °F	Sep 6
5	97 °F	Aug 14
5	97 °F	Jul 30
8	96 °F	Aug 27
8	96 °F	Jul 29
8	96 °F	Jun 30
8	96 °F	May 18

What was the coldest temperature in Sioux City in 1970?

The lowest temperature recorded in Sioux City, Iowa in 1970 was -26 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Sioux City in 1970

Rank	Temperature	Date
1	-26 °F	January 21
1	-26 °F	January 19
3	-19 °F	January 20
4	-17 °F	January 18
5	-16 °F	January 5
5	-16 °F	January 3
7	-14 °F	January 4
8	-11 °F	January 17
8	-11 °F	January 8
8	-11 °F	January 6

January 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	21	9	0.04	1.1
January 2	10	-7	0.00	0.1
January 3	20	-16	0.01	0.2
January 4	19	-14	0.00	0.0
January 5	6	-16	0.00	0.0
January 6	7	-11	0.00	0.0
January 7	-1	-8	0.00	0.0
January 8	-1	-11	0.00	0.0
January 9	9	-5	0.00	0.0
January 10	29	-3	0.00	0.0
January 11	29	7	0.00	0.0
January 12	14	-4	0.00	0.0
January 13	14	-3	0.00	0.0
January 14	20	11	0.00	0.0
January 15	32	17	0.00	0.0
January 16	22	2	0.02	0.2
January 17	2	-11	0.07	0.9
January 18	-5	-17	0.04	1.3
January 19	0	-26	0.00	0.1
January 20	0	-19	0.00	0.0
January 21	12	-26	0.00	0.0
January 22	33	11	0.00	0.0
January 23	25	1	0.00	0.0
January 24	33	23	0.00	0.0
January 25	41	25	0.02	0.2
January 26	42	17	0.00	0.0
January 27	37	24	0.00	0.0
January 28	37	23	0.01	0.0
January 29	34	10	0.00	0.0
January 30	42	21	0.00	0.0
January 31	40	17	0.00	0.0

February 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	42	7	0.00	0.0
February 2	7	-4	0.00	0.0
February 3	21	-7	0.00	0.0
February 4	42	20	0.00	0.0
February 5	45	17	0.00	0.0
February 6	51	26	0.00	0.0
February 7	40	24	0.00	0.0
February 8	34	23	0.00	0.0
February 9	37	24	0.00	0.0
February 10	36	24	0.00	0.0
February 11	33	22	0.01	0.1
February 12	35	15	0.00	0.0
February 13	16	4	0.00	0.1
February 14	18	9	0.12	1.8
February 15	26	7	0.00	0.0
February 16	48	12	0.00	0.0
February 17	60	29	0.00	0.0
February 18	36	4	0.03	0.3
February 19	23	3	0.00	0.0
February 20	44	1	0.00	0.0
February 21	61	21	0.00	0.0
February 22	49	26	0.00	0.0
February 23	52	22	0.00	0.0
February 24	43	29	0.00	0.0
February 25	32	13	0.00	0.0
February 26	51	30	0.00	0.0
February 27	44	25	0.00	0.0
February 28	31	28	0.09	0.4

March 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
March 1	35	29	0.00	0.0
March 2	55	33	0.12	0.0
March 3	55	28	0.17	0.0
March 4	40	22	0.00	0.0
March 5	46	30	0.02	0.0
March 6	48	28	0.00	0.0
March 7	55	29	0.00	0.0
March 8	47	25	0.00	0.0
March 9	25	21	0.49	5.9
March 10	27	12	0.01	0.5
March 11	30	11	0.00	0.0
March 12	31	11	0.00	0.0
March 13	26	14	0.00	0.0
March 14	33	17	0.00	0.0
March 15	35	11	0.00	0.0
March 16	34	11	0.00	0.0
March 17	40	18	0.00	0.0
March 18	37	25	0.20	2.2
March 19	35	29	0.56	5.4
March 20	35	24	0.00	0.0
March 21	42	13	0.00	0.0
March 22	37	25	0.00	0.0
March 23	36	27	0.00	0.0
March 24	43	25	0.13	0.0
March 25	37	30	0.12	1.7
March 26	38	25	0.00	0.0
March 27	30	15	0.02	0.2
March 28	39	15	0.00	0.0
March 29	43	26	0.00	0.0
March 30	40	28	0.00	0.0
March 31	44	26	0.00	0.0

April 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	38	25	0.00
April 2	52	21	0.00
April 3	37	24	0.00
April 4	58	20	0.00
April 5	68	37	0.00
April 6	63	31	0.00
April 7	82	38	0.00
April 8	68	38	0.00
April 9	71	31	0.00
April 10	79	33	0.00
April 11	68	35	0.10
April 12	50	41	0.84
April 13	45	35	0.36
April 14	45	35	0.00
April 15	64	36	0.18
April 16	59	30	0.00
April 17	56	33	0.00
April 18	45	40	0.46
April 19	45	39	0.24
April 20	44	34	0.00
April 21	61	34	0.00
April 22	69	36	0.20
April 23	68	29	0.00
April 24	75	33	0.00
April 25	84	49	0.00
April 26	85	48	0.00
April 27	86	61	0.00
April 28	91	59	0.00
April 29	76	48	0.00
April 30	55	40	0.58

May 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	48	34	0.02
May 2	70	30	0.00
May 3	81	41	0.00
May 4	77	44	0.00
May 5	72	51	0.00
May 6	80	42	0.00
May 7	91	57	0.00
May 8	89	61	0.00
May 9	70	50	0.00
May 10	79	43	0.00
May 11	78	51	0.00
May 12	65	58	0.41
May 13	62	55	0.72
May 14	63	48	0.07
May 15	58	44	0.00
May 16	72	40	0.00
May 17	85	46	0.00
May 18	96	64	0.00
May 19	91	64	0.00
May 20	93	68	0.00
May 21	92	69	0.00
May 22	79	62	0.00
May 23	76	64	0.00
May 24	85	60	0.29
May 25	75	51	0.00
May 26	77	45	0.00
May 27	89	62	0.00
May 28	81	64	0.11
May 29	76	64	0.36
May 30	84	59	0.46
May 31	70	62	0.60

June 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	70	57	0.00
June 2	75	51	0.00
June 3	74	49	0.00
June 4	75	47	0.00
June 5	86	56	0.00
June 6	88	60	0.00
June 7	90	63	0.00
June 8	89	66	0.00
June 9	88	70	0.06
June 10	82	62	1.14
June 11	82	61	0.62
June 12	75	63	0.38
June 13	84	62	0.00
June 14	91	69	0.01
June 15	88	64	0.10
June 16	87	64	0.02
June 17	87	65	0.08
June 18	77	58	0.00
June 19	77	54	0.05
June 20	71	57	0.11
June 21	75	51	0.00
June 22	80	54	0.00
June 23	91	61	0.00
June 24	80	60	0.00
June 25	92	58	0.00
June 26	83	59	0.00
June 27	90	54	0.00
June 28	101	70	0.00
June 29	100	76	0.00
June 30	96	74	0.06

July 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	95	73	0.22
July 2	94	69	0.35
July 3	80	60	0.00
July 4	76	55	0.00
July 5	83	51	0.00
July 6	87	63	0.00
July 7	83	64	0.00
July 8	85	62	0.00
July 9	88	56	0.00
July 10	81	66	0.32
July 11	87	63	0.00
July 12	91	67	0.00
July 13	84	71	0.14
July 14	93	68	0.00
July 15	84	64	0.00
July 16	91	58	0.00
July 17	94	66	0.00
July 18	91	68	0.23
July 19	70	54	0.00
July 20	77	50	0.00
July 21	79	53	0.00
July 22	81	55	0.00
July 23	81	56	0.00
July 24	88	67	0.00
July 25	91	66	0.00
July 26	93	72	0.00
July 27	87	71	0.46
July 28	87	71	0.00
July 29	96	74	0.10
July 30	97	69	0.00
July 31	90	67	0.07

August 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	89	60	0.07
August 2	93	66	0.32
August 3	81	62	0.08
August 4	79	61	0.29
August 5	79	70	0.00
August 6	78	72	0.03
August 7	83	73	0.03
August 8	79	68	0.00
August 9	74	66	0.00
August 10	85	69	0.00
August 11	87	60	0.00
August 12	92	63	0.00
August 13	95	64	0.00
August 14	97	66	0.00
August 15	85	59	0.00
August 16	90	54	0.00
August 17	82	65	0.00
August 18	94	71	0.00
August 19	88	62	0.00
August 20	86	53	0.00
August 21	79	55	0.19
August 22	84	57	0.00
August 23	87	51	0.00
August 24	91	53	0.00
August 25	93	56	0.00
August 26	94	62	0.00
August 27	96	68	0.00
August 28	92	70	0.00
August 29	99	72	0.00
August 30	82	63	0.00
August 31	87	59	0.00

September 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	98	67	0.00
September 2	85	65	2.85
September 3	88	63	0.00
September 4	87	63	0.00
September 5	85	67	0.00
September 6	97	75	0.00
September 7	82	61	0.00
September 8	88	57	0.00
September 9	73	54	0.16
September 10	73	45	0.00
September 11	79	47	0.00
September 12	61	51	0.00
September 13	52	44	0.08
September 14	53	45	0.64
September 15	56	47	0.51
September 16	52	45	0.50
September 17	70	52	0.00
September 18	81	54	0.00
September 19	78	62	0.00
September 20	91	67	1.10
September 21	72	54	0.39
September 22	69	50	0.00
September 23	60	48	0.47
September 24	71	53	0.48
September 25	59	42	0.36
September 26	67	36	0.00
September 27	69	41	0.00
September 28	77	43	0.00
September 29	87	49	0.00
September 30	82	45	0.00

October 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
October 1	81	52	0.00	0.0
October 2	74	48	0.00	0.0
October 3	63	37	0.00	0.0
October 4	82	41	0.00	0.0
October 5	84	60	0.00	0.0
October 6	81	61	0.01	0.0
October 7	61	37	2.34	0.0
October 8	38	35	0.58	0.0
October 9	40	29	0.65	5.1
October 10	46	28	0.00	0.0
October 11	47	41	0.45	0.0
October 12	60	33	0.00	0.0
October 13	55	38	0.00	0.0
October 14	50	30	0.00	0.0
October 15	54	30	0.00	0.0
October 16	63	31	0.00	0.0
October 17	64	32	0.00	0.0
October 18	61	34	0.00	0.0
October 19	62	37	0.00	0.0
October 20	65	42	0.00	0.0
October 21	71	44	0.00	0.0
October 22	73	50	0.00	0.0
October 23	64	58	0.01	0.0
October 24	69	57	0.00	0.0
October 25	59	39	0.16	0.0
October 26	53	34	0.15	0.0
October 27	53	34	0.07	0.0
October 28	45	31	0.00	0.0
October 29	46	28	0.10	0.0
October 30	42	34	0.05	0.0
October 31	43	35	0.00	0.0

November 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	42	35	0.06	0.0
November 2	41	34	0.29	0.2
November 3	39	37	0.13	0.0
November 4	44	33	0.00	0.0
November 5	60	29	0.00	0.0
November 6	62	29	0.00	0.0
November 7	39	31	0.02	0.0
November 8	46	37	0.58	0.0
November 9	47	30	0.00	0.0
November 10	62	28	0.00	0.0
November 11	50	31	0.14	0.2
November 12	40	29	0.00	0.0
November 13	39	33	0.00	0.0
November 14	34	18	0.00	0.0
November 15	41	15	0.00	0.0
November 16	50	21	0.00	0.0
November 17	55	27	0.00	0.0
November 18	47	26	0.55	0.0
November 19	41	30	0.03	0.0
November 20	49	26	0.00	0.0
November 21	54	31	0.00	0.0
November 22	31	10	0.00	0.0
November 23	19	8	0.00	0.0
November 24	32	8	0.00	0.0
November 25	63	30	0.00	0.0
November 26	36	22	0.00	0.0
November 27	34	16	0.00	0.0
November 28	38	33	0.00	0.0
November 29	57	26	0.00	0.0
November 30	61	28	0.00	0.0

December 1970 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	60	33	0.00	0.0
December 2	51	22	0.00	0.0
December 3	51	23	0.00	0.0
December 4	57	15	0.00	0.0
December 5	35	12	0.00	0.0
December 6	34	10	0.00	0.0
December 7	47	22	0.00	0.0
December 8	64	26	0.00	0.0
December 9	37	25	0.00	0.0
December 10	26	15	0.94	5.4
December 11	16	12	0.01	0.2
December 12	31	13	0.00	0.0
December 13	37	8	0.00	0.0
December 14	21	5	0.00	0.0
December 15	40	18	0.00	0.0
December 16	30	17	0.00	0.0
December 17	35	17	0.00	0.0
December 18	24	12	0.07	0.8
December 19	12	-3	0.02	0.2
December 20	25	-4	0.00	0.0
December 21	19	4	0.01	0.1
December 22	31	12	0.00	0.0
December 23	12	-5	0.00	0.0
December 24	21	-4	0.02	0.3
December 25	27	3	0.00	0.0
December 26	33	17	0.00	0.0
December 27	19	4	0.00	0.0
December 28	15	-3	0.00	0.0
December 29	31	2	0.00	0.0
December 30	32	18	0.00	0.0
December 31	38	6	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1948–2024	Sioux City Gateway Airport	location