Sioux City Weather in 2015

Historical record of Sioux City, Iowa weather for the year 2015 based on NOAA data.

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2015 Sioux City Weather Extremes
Highest temperature	99 °F	June 9
Lowest temperature	-13 °F	February 2
Highest daily low	74 °F	July 12
Lowest daily high	5 °F	January 7
Most daily precipitation	1.9 inches	August 18
Most daily snow	6.6 inches	November 30
Total annual precipitation	35.1 inches	-
Total annual snow	37.5 inches	-

What was the hottest temperature in Sioux City in 2015?

The highest temperature recorded in Sioux City, Iowa in 2015 was 99 °F which happened on June 9.

Highest Temperatures: All-Time By Year

Highest Temperatures in Sioux City in 2015

Rank	Temperature	Date
1	99 °F	Jun 9
2	95 °F	Jul 24
3	94 °F	Jul 17
3	94 °F	Jul 13
3	94 °F	Jul 12
6	92 °F	Jul 14
7	91 °F	Oct 11
8	90 °F	Aug 7
8	90 °F	Jun 21
8	90 °F	Jun 10
8	90 °F	Mar 16

What was the coldest temperature in Sioux City in 2015?

The lowest temperature recorded in Sioux City, Iowa in 2015 was -13 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Sioux City in 2015

Rank	Temperature	Date
1	-13 °F	February 2
1	-13 °F	January 13
3	-11 °F	February 5
4	-10 °F	January 12
4	-10 °F	January 7
6	-9 °F	February 27
6	-9 °F	February 23
8	-7 °F	January 10
9	-6 °F	March 5
9	-6 °F	February 26
9	-6 °F	February 4
9	-6 °F	January 9

January 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
January 1	34	3	0.00	0.0
January 2	31	6	0.00	0.0
January 3	30	8	0.10	1.8
January 4	8	-5	0.00	0.0
January 5	16	-4	0.13	2.2
January 6	14	-3	0.00	0.2
January 7	5	-10	0.00	0.0
January 8	30	1	0.01	0.2
January 9	12	-6	0.00	0.0
January 10	34	-7	0.00	0.0
January 11	22	5	0.00	0.0
January 12	18	-10	0.00	0.0
January 13	24	-13	0.00	0.0
January 14	34	15	0.00	0.0
January 15	40	15	0.00	0.0
January 16	47	23	0.00	0.0
January 17	47	34	0.00	0.0
January 18	50	25	0.00	0.0
January 19	54	26	0.00	0.0
January 20	46	27	0.00	0.1
January 21	35	31	0.01	0.0
January 22	40	28	0.00	0.0
January 23	48	22	0.00	0.0
January 24	50	26	0.03	0.0
January 25	41	30	0.06	0.0
January 26	55	29	0.00	0.0
January 27	49	25	0.00	0.0
January 28	52	31	0.00	0.0
January 29	37	23	0.00	0.0
January 30	41	16	0.00	0.0
January 31	38	26	0.30	3.8

February 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
February 1	30	0	0.17	3.4
February 2	18	-13	0.00	0.0
February 3	25	2	0.00	0.0
February 4	20	-6	0.01	0.0
February 5	22	-11	0.00	0.0
February 6	37	16	0.00	0.0
February 7	50	25	0.00	0.0
February 8	45	32	0.00	0.0
February 9	34	32	0.00	0.0
February 10	44	32	0.00	0.0
February 11	32	10	0.00	0.0
February 12	20	5	0.00	0.1
February 13	47	15	0.00	0.0
February 14	36	12	0.00	0.0
February 15	19	9	0.00	0.0
February 16	36	19	0.00	0.0
February 17	22	14	0.00	0.1
February 18	15	-1	0.00	0.0
February 19	23	-5	0.00	0.0
February 20	49	15	0.00	0.0
February 21	36	14	0.00	0.0
February 22	15	-2	0.00	0.0
February 23	31	-9	0.00	0.0
February 24	47	21	0.00	0.0
February 25	32	6	0.14	1.3
February 26	12	-6	0.00	0.0
February 27	18	-9	0.00	0.0
February 28	29	0	0.00	0.0

March 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	39	12	0.00
March 2	37	10	0.00
March 3	34	16	0.00
March 4	25	-2	0.00
March 5	33	-6	0.00
March 6	62	14	0.00
March 7	55	30	0.00
March 8	58	29	0.00
March 9	63	25	0.00
March 10	73	30	0.00
March 11	68	26	0.00
March 12	78	34	0.00
March 13	73	32	0.00
March 14	70	28	0.00
March 15	80	44	0.00
March 16	90	38	0.00
March 17	47	30	0.00
March 18	56	36	0.00
March 19	58	28	0.00
March 20	79	21	0.00
March 21	59	31	0.00
March 22	73	34	0.00
March 23	52	33	0.00
March 24	37	33	0.87
March 25	46	26	0.00
March 26	45	21	0.00
March 27	41	17	0.01
March 28	56	30	0.00
March 29	64	33	0.00
March 30	80	29	0.00
March 31	79	30	0.00

April 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	86	46	0.20
April 2	66	43	0.00
April 3	51	29	0.00
April 4	70	26	0.00
April 5	75	35	0.00
April 6	54	47	0.04
April 7	48	43	0.02
April 8	47	42	0.03
April 9	46	37	1.43
April 10	59	38	0.00
April 11	74	35	0.00
April 12	78	47	0.24
April 13	68	36	0.00
April 14	74	39	0.00
April 15	59	37	0.00
April 16	74	48	0.00
April 17	77	48	0.00
April 18	64	53	0.54
April 19	56	45	0.00
April 20	58	39	0.00
April 21	55	32	0.00
April 22	58	24	0.00
April 23	66	31	0.00
April 24	76	52	0.01
April 25	61	46	0.02
April 26	68	37	0.00
April 27	72	33	0.00
April 28	73	38	0.00
April 29	73	41	0.00
April 30	78	36	0.00

May 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	66	51	0.18
May 2	79	46	0.00
May 3	87	56	0.00
May 4	71	55	0.05
May 5	77	54	0.04
May 6	74	62	0.35
May 7	75	53	0.31
May 8	63	50	0.00
May 9	68	41	0.00
May 10	73	45	0.36
May 11	49	43	0.00
May 12	69	39	0.00
May 13	76	50	0.10
May 14	69	53	0.76
May 15	71	57	0.00
May 16	81	62	0.02
May 17	75	49	0.02
May 18	58	40	0.00
May 19	54	39	0.00
May 20	51	41	0.10
May 21	76	40	0.00
May 22	74	42	0.01
May 23	66	55	0.16
May 24	67	60	0.24
May 25	80	58	0.00
May 26	68	54	0.61
May 27	85	50	0.00
May 28	78	56	0.00
May 29	79	52	0.15
May 30	68	50	0.00
May 31	70	42	0.07

June 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	78	49	0.00
June 2	81	58	0.00
June 3	82	63	0.27
June 4	82	60	0.00
June 5	86	60	0.00
June 6	82	66	0.75
June 7	78	61	0.00
June 8	88	62	0.00
June 9	99	61	0.00
June 10	90	64	0.54
June 11	67	63	0.45
June 12	67	61	0.00
June 13	79	63	0.00
June 14	85	63	0.00
June 15	78	59	1.63
June 16	80	53	0.00
June 17	79	65	0.00
June 18	79	57	0.01
June 19	83	54	0.00
June 20	89	65	0.00
June 21	90	60	0.01
June 22	87	60	0.04
June 23	82	56	0.00
June 24	81	65	0.27
June 25	86	67	0.00
June 26	84	63	0.17
June 27	87	57	0.00
June 28	87	66	0.00
June 29	86	62	0.00
June 30	74	63	0.05

July 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	77	64	0.54
July 2	70	59	0.02
July 3	79	52	0.00
July 4	83	57	0.00
July 5	88	67	0.02
July 6	81	58	0.24
July 7	73	53	0.00
July 8	76	51	0.00
July 9	85	57	0.00
July 10	83	61	0.00
July 11	89	68	0.00
July 12	94	74	0.00
July 13	94	68	0.00
July 14	92	67	0.00
July 15	76	70	0.17
July 16	88	70	0.21
July 17	94	65	0.48
July 18	88	67	0.21
July 19	85	64	0.00
July 20	83	62	0.87
July 21	81	56	0.00
July 22	79	62	0.00
July 23	87	61	0.00
July 24	95	72	0.00
July 25	87	73	0.01
July 26	87	68	1.05
July 27	86	71	0.39
July 28	80	62	1.47
July 29	85	57	0.00
July 30	88	62	0.00
July 31	87	65	0.00

August 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	82	62	0.00
August 2	89	67	0.00
August 3	82	59	0.00
August 4	80	65	0.03
August 5	81	66	0.01
August 6	82	67	0.01
August 7	90	62	0.00
August 8	83	71	0.02
August 9	86	66	0.09
August 10	83	62	0.00
August 11	86	58	0.00
August 12	85	62	0.00
August 13	86	64	0.00
August 14	89	66	0.00
August 15	87	64	0.00
August 16	87	70	0.63
August 17	71	63	1.11
August 18	70	55	1.86
August 19	73	51	0.00
August 20	81	48	0.01
August 21	81	60	0.00
August 22	80	58	0.00
August 23	71	49	0.00
August 24	75	45	0.00
August 25	77	45	0.00
August 26	78	49	0.00
August 27	81	61	0.41
August 28	71	62	1.79
August 29	72	61	0.00
August 30	75	62	0.00
August 31	84	63	0.00

September 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	87	66	0.00
September 2	87	68	0.00
September 3	88	69	0.00
September 4	87	71	0.08
September 5	89	73	0.00
September 6	89	70	0.00
September 7	79	63	0.00
September 8	81	56	0.08
September 9	81	52	0.13
September 10	79	56	0.00
September 11	68	47	0.00
September 12	70	42	0.00
September 13	77	46	0.00
September 14	83	59	0.00
September 15	85	64	0.00
September 16	87	65	0.00
September 17	85	58	0.02
September 18	63	50	0.14
September 19	68	43	0.00
September 20	77	48	0.00
September 21	78	53	0.00
September 22	81	63	0.01
September 23	71	64	1.12
September 24	71	66	0.96
September 25	82	58	0.17
September 26	79	52	0.00
September 27	82	52	0.00
September 28	77	58	0.33
September 29	73	47	0.09
September 30	69	47	0.00

October 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	66	44	0.00
October 2	65	41	0.00
October 3	63	43	0.00
October 4	62	45	0.00
October 5	66	51	0.00
October 6	76	50	0.00
October 7	77	50	0.00
October 8	71	49	0.00
October 9	65	45	0.00
October 10	79	42	0.00
October 11	91	53	0.00
October 12	70	46	0.00
October 13	78	38	0.00
October 14	74	37	0.00
October 15	67	37	0.00
October 16	57	32	0.00
October 17	60	35	0.00
October 18	72	38	0.00
October 19	79	56	0.00
October 20	79	50	0.00
October 21	66	42	0.01
October 22	60	39	0.01
October 23	68	52	0.62
October 24	61	34	0.00
October 25	67	32	0.00
October 26	64	36	0.00
October 27	60	38	0.00
October 28	51	37	0.00
October 29	52	29	0.00
October 30	54	28	0.14
October 31	64	41	0.08

November 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
November 1	69	35	0.00	0.0
November 2	74	41	0.00	0.0
November 3	72	42	0.00	0.0
November 4	74	54	0.00	0.0
November 5	65	39	0.00	0.0
November 6	53	32	0.00	0.0
November 7	57	27	0.00	0.0
November 8	63	27	0.00	0.0
November 9	65	33	0.00	0.0
November 10	59	34	0.00	0.0
November 11	47	34	1.65	0.0
November 12	53	31	0.00	0.0
November 13	52	24	0.00	0.0
November 14	67	31	0.00	0.0
November 15	63	36	0.00	0.0
November 16	55	51	0.36	0.0
November 17	57	44	0.81	0.0
November 18	50	37	0.37	0.0
November 19	46	26	0.00	0.0
November 20	35	28	0.37	5.7
November 21	29	10	0.00	0.0
November 22	43	12	0.00	0.0
November 23	45	22	0.00	0.0
November 24	51	27	0.00	0.0
November 25	53	36	0.00	0.0
November 26	38	22	0.36	0.2
November 27	25	18	0.00	0.0
November 28	30	12	0.00	0.0
November 29	34	30	0.00	0.0
November 30	34	29	0.63	6.6

December 2015 Sioux City Weather

Day	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
December 1	34	23	0.21	3.2
December 2	35	12	0.00	0.0
December 3	28	4	0.00	0.0
December 4	42	16	0.00	0.0
December 5	43	36	0.00	0.0
December 6	47	28	0.00	0.0
December 7	53	30	0.00	0.0
December 8	54	33	0.00	0.0
December 9	56	30	0.00	0.0
December 10	58	33	0.04	0.0
December 11	54	31	0.00	0.0
December 12	42	37	0.21	0.0
December 13	41	39	0.31	0.0
December 14	39	36	0.86	0.0
December 15	40	35	0.04	0.0
December 16	41	28	0.17	0.0
December 17	32	22	0.00	0.0
December 18	31	14	0.00	0.0
December 19	39	14	0.00	0.0
December 20	46	29	0.00	0.0
December 21	31	26	0.00	0.0
December 22	47	28	0.00	0.0
December 23	39	30	0.22	0.0
December 24	33	27	0.08	0.5
December 25	32	26	0.14	0.9
December 26	34	21	0.23	1.3
December 27	21	6	0.00	0.0
December 28	22	10	0.25	3.5
December 29	26	20	0.05	1.3
December 30	27	5	0.05	1.1
December 31	26	-3	0.00	0.0

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Weather Station Details

Years	Station	Coordinates
1948–2024	Sioux City Gateway Airport	location