Iowa City Weather in 2018

Historical record of Iowa City, Iowa weather for the year 2018 based on NOAA data.

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2018 Iowa City Weather Extremes
Highest temperature	98 °F	May 28
Lowest temperature	-20 °F	January 2
Highest daily low	75 °F	June 18
Lowest daily high	-4 °F	January 1
Most daily precipitation	3.3 inches	June 9
Total annual precipitation	48.8 inches	-

What was the hottest temperature in Iowa City in 2018?

The highest temperature recorded in Iowa City, Iowa in 2018 was 98 °F which happened 2 different times.

Highest Temperatures: All-Time By Year

Highest Temperatures in Iowa City in 2018

Rank	Temperature	Date
1	98 °F	May 28
1	98 °F	May 27
3	96 °F	Jul 13
4	95 °F	Jun 17
5	94 °F	Aug 5
5	94 °F	Jul 12
5	94 °F	Jun 30
5	94 °F	Jun 29
5	94 °F	Jun 18
5	94 °F	Jun 16

What was the coldest temperature in Iowa City in 2018?

The lowest temperature recorded in Iowa City, Iowa in 2018 was -20 °F which happened 2 different times.

Lowest Temperatures: All-Time By Year

Lowest Temperatures in Iowa City in 2018

Rank	Temperature	Date
1	-20 °F	January 2
1	-20 °F	January 1
3	-11 °F	January 6
4	-7 °F	February 6
4	-7 °F	January 4
6	-4 °F	January 5
7	-3 °F	February 5
7	-3 °F	January 17
9	-2 °F	January 16
9	-2 °F	January 3

January 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
January 1	-4	-20	0.00
January 2	17	-20	0.00
January 3	20	-2	0.00
January 4	9	-7	0.00
January 5	12	-4	0.00
January 6	13	-11	0.00
January 7	34	13	0.00
January 8	40	21	0.00
January 9	35	21	0.00
January 10	47	34	0.00
January 11	49	9	0.07
January 12	17	6	0.00
January 13	14	1	0.00
January 14	24	1	0.04
January 15	26	-1	0.01
January 16	13	-2	0.00
January 17	24	-3	0.00
January 18	37	16	0.00
January 19	46	25	0.00
January 20	47	25	0.00
January 21	44	38	0.08
January 22	54	34	0.09
January 23	37	27	0.00
January 24	35	20	0.00
January 25	51	26	0.00
January 26	57	29	0.00
January 27	51	28	0.00
January 28	35	21	0.00
January 29	29	15	0.00
January 30	37	9	0.00
January 31	43	29	0.00

February 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
February 1	36	7	0.00
February 2	22	0	0.00
February 3	48	17	0.00
February 4	38	0	0.00
February 5	12	-3	0.31
February 6	14	-7	0.03
February 7	18	-1	0.00
February 8	22	7	0.04
February 9	22	13	0.01
February 10	19	10	0.06
February 11	18	-1	0.08
February 12	22	-1	0.00
February 13	33	14	0.00
February 14	43	13	0.00
February 15	49	30	0.00
February 16	36	14	0.00
February 17	34	14	0.08
February 18	46	14	0.00
February 19	60	36	0.56
February 20	36	22	0.96
February 21	31	18	0.00
February 22	37	27	0.02
February 23	40	26	0.10
February 24	40	27	0.21
February 25	46	26	0.00
February 26	56	23	0.00
February 27	65	28	0.00
February 28	57	43	0.00

March 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
March 1	52	32	0.02
March 2	50	22	0.00
March 3	54	32	0.00
March 4	57	33	0.00
March 5	45	32	1.18
March 6	36	31	0.01
March 7	36	22	0.00
March 8	37	19	0.00
March 9	42	18	0.00
March 10	47	25	0.00
March 11	49	34	0.00
March 12	46	30	0.00
March 13	42	23	0.00
March 14	62	19	0.00
March 15	56	26	0.00
March 16	43	28	0.13
March 17	46	29	0.12
March 18	51	22	0.00
March 19	54	30	0.00
March 20	41	29	0.00
March 21	47	27	0.00
March 22	50	23	0.00
March 23	50	31	0.36
March 24	35	30	0.70
March 25	40	28	0.00
March 26	37	30	0.46
March 27	38	33	0.00
March 28	48	28	0.04
March 29	52	38	0.00
March 30	52	31	0.00
March 31	56	25	0.12

April 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
April 1	32	21	0.00
April 2	43	15	0.00
April 3	38	24	0.08
April 4	36	16	0.00
April 5	50	25	0.00
April 6	40	19	0.00
April 7	42	16	0.00
April 8	35	17	0.19
April 9	39	28	0.01
April 10	49	22	0.00
April 11	63	31	0.00
April 12	71	48	0.00
April 13	58	41	0.01
April 14	41	34	0.29
April 15	34	27	0.04
April 16	38	26	0.00
April 17	52	24	0.00
April 18	36	33	0.06
April 19	55	32	0.00
April 20	61	27	0.00
April 21	61	44	0.00
April 22	69	46	0.00
April 23	71	48	0.00
April 24	76	39	0.00
April 25	66	41	0.00
April 26	72	36	0.00
April 27	76	39	0.00
April 28	60	38	0.00
April 29	67	31	0.00
April 30	84	45	0.00

May 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
May 1	83	58	0.00
May 2	82	59	1.10
May 3	75	59	0.62
May 4	78	53	0.00
May 5	82	48	0.00
May 6	81	59	0.01
May 7	80	49	0.00
May 8	81	50	0.00
May 9	81	59	0.02
May 10	80	53	0.00
May 11	64	49	0.01
May 12	58	47	0.21
May 13	63	50	0.30
May 14	78	57	0.01
May 15	79	59	0.00
May 16	83	57	0.00
May 17	84	56	0.00
May 18	79	57	0.00
May 19	82	60	0.22
May 20	67	59	0.00
May 21	70	55	0.28
May 22	80	55	0.00
May 23	85	62	0.01
May 24	90	62	0.00
May 25	86	65	0.00
May 26	91	63	0.32
May 27	98	69	0.00
May 28	98	67	0.00
May 29	92	68	0.58
May 30	86	68	0.08
May 31	90	68	0.00

June 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
June 1	93	68	0.00
June 2	79	60	0.00
June 3	81	55	0.00
June 4	84	52	0.00
June 5	91	59	0.00
June 6	90	59	0.01
June 7	91	69	0.00
June 8	88	67	0.00
June 9	85	66	3.31
June 10	80	65	0.21
June 11	77	65	0.00
June 12	88	68	0.05
June 13	81	64	0.00
June 14	69	61	0.51
June 15	92	64	0.00
June 16	94	72	0.00
June 17	95	74	0.00
June 18	94	75	0.00
June 19	81	71	0.11
June 20	86	69	1.26
June 21	76	63	1.74
June 22	75	63	0.04
June 23	78	59	0.00
June 24	83	59	0.00
June 25	80	64	0.09
June 26	81	67	0.36
June 27	84	65	0.00
June 28	87	65	0.00
June 29	94	69	0.00
June 30	94	72	0.01

July 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
July 1	84	70	0.17
July 2	84	60	0.00
July 3	90	65	0.00
July 4	93	73	0.00
July 5	91	72	0.00
July 6	83	63	0.00
July 7	83	57	0.00
July 8	85	57	0.00
July 9	92	62	0.00
July 10	92	71	0.00
July 11	90	67	0.00
July 12	94	67	0.00
July 13	96	71	0.01
July 14	87	72	0.52
July 15	87	72	0.00
July 16	88	67	0.00
July 17	89	64	0.00
July 18	86	66	0.00
July 19	79	62	1.68
July 20	78	67	0.08
July 21	82	67	0.00
July 22	78	66	0.00
July 23	85	65	0.00
July 24	85	65	0.00
July 25	84	61	0.05
July 26	80	61	0.00
July 27	79	58	0.00
July 28	77	55	0.00
July 29	79	61	0.00
July 30	83	58	0.01
July 31	85	58	0.00

August 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
August 1	86	60	0.00
August 2	80	64	0.00
August 3	90	62	0.00
August 4	90	63	0.00
August 5	94	69	0.15
August 6	84	68	0.57
August 7	83	65	0.04
August 8	84	64	0.00
August 9	92	63	0.10
August 10	88	67	0.00
August 11	89	63	0.00
August 12	92	63	0.00
August 13	90	62	0.00
August 14	87	65	0.00
August 15	86	70	1.72
August 16	86	69	0.00
August 17	86	68	0.34
August 18	86	68	0.00
August 19	83	65	0.00
August 20	77	67	1.76
August 21	75	63	0.00
August 22	79	56	0.00
August 23	81	53	0.00
August 24	71	62	1.22
August 25	90	63	0.00
August 26	88	66	0.00
August 27	89	74	0.06
August 28	84	66	2.34
August 29	75	61	0.06
August 30	78	57	0.00
August 31	81	64	0.00

September 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
September 1	85	68	1.21
September 2	86	67	0.09
September 3	85	70	0.21
September 4	90	69	0.00
September 5	78	70	2.76
September 6	71	65	0.14
September 7	70	61	0.04
September 8	71	59	0.00
September 9	75	55	0.00
September 10	77	49	0.00
September 11	82	53	0.00
September 12	83	56	0.00
September 13	84	57	0.00
September 14	89	61	0.00
September 15	90	64	0.00
September 16	88	63	0.00
September 17	92	63	0.00
September 18	80	62	0.60
September 19	72	62	0.82
September 20	93	66	0.03
September 21	70	52	0.04
September 22	71	47	0.00
September 23	76	48	0.00
September 24	80	52	0.00
September 25	77	49	0.91
September 26	66	44	0.00
September 27	72	43	0.00
September 28	61	45	0.07
September 29	54	40	0.11
September 30	59	50	0.02

October 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
October 1	76	52	0.14
October 2	62	51	0.00
October 3	89	62	0.38
October 4	62	44	0.00
October 5	63	51	3.18
October 6	61	52	0.71
October 7	58	53	0.99
October 8	78	58	0.46
October 9	81	66	0.52
October 10	68	45	0.62
October 11	50	34	0.00
October 12	45	34	0.00
October 13	52	38	0.00
October 14	52	36	0.03
October 15	49	34	0.00
October 16	62	32	0.00
October 17	54	33	0.00
October 18	63	30	0.00
October 19	62	46	0.01
October 20	51	28	0.00
October 21	55	25	0.00
October 22	67	35	0.00
October 23	56	34	0.00
October 24	57	30	0.00
October 25	53	39	0.00
October 26	57	44	0.00
October 27	64	39	0.03
October 28	59	35	0.09
October 29	62	32	0.00
October 30	64	46	0.06
October 31	59	43	0.00

November 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
November 1	55	36	0.00
November 2	57	36	0.28
November 3	50	39	0.19
November 4	53	42	1.42
November 5	49	41	0.17
November 6	48	32	0.01
November 7	36	31	0.00
November 8	36	30	0.08
November 9	32	18	0.02
November 10	28	12	0.00
November 11	43	24	0.00
November 12	32	20	0.00
November 13	29	17	0.00
November 14	39	15	0.00
November 15	43	16	0.00
November 16	42	33	0.00
November 17	34	27	0.11
November 18	29	17	0.00
November 19	36	16	0.00
November 20	33	20	0.00
November 21	39	22	0.00
November 22	49	27	0.00
November 23	50	35	0.26
November 24	51	35	0.00
November 25	36	29	0.67
November 26	29	19	0.00
November 27	27	11	0.00
November 28	27	7	0.00
November 29	36	27	0.00
November 30	37	21	0.00

December 2018 Iowa City Weather

Day	High (°F)	Low (°F)	Precip. (inches)
December 1	41	33	0.75
December 2	39	34	0.08
December 3	34	30	0.00
December 4	30	25	0.00
December 5	38	20	0.00
December 6	30	17	0.00
December 7	25	10	0.00
December 8	31	14	0.00
December 9	30	11	0.00
December 10	36	13	0.00
December 11	43	17	0.00
December 12	38	24	0.00
December 13	39	23	0.00
December 14	41	21	0.00
December 15	52	19	0.00
December 16	51	21	0.00
December 17	47	23	0.00
December 18	51	22	0.00
December 19	52	34	0.00
December 20	42	34	0.08
December 21	34	27	0.00
December 22	32	22	0.00
December 23	40	20	0.00
December 24	36	15	0.00
December 25	47	24	0.00
December 26	41	22	0.32
December 27	52	39	0.77
December 28	41	19	0.00
December 29	22	16	0.00
December 30	39	16	0.00
December 31	37	30	0.38

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Weather Station Details

Years	Station	Coordinates
1999–2024	Iowa City Municipal Airport	location
1893–1998	Iowa City	location