Iowa City Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Iowa City Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	-10.012500000000003	-8.9		-2.6875	-2.8
	-10.893749999999999	-5.3		-3.2125000000000004	-0.4
	-10.418750000000001	-4.8		-1.4062500000000002	-1.4
	-9.44375	-4.9		-2.3874999999999993	0.5
	-10.525	-2.3		-2.2	-0.6
	-11.306250000000004	0.2		-4.46875	1.7
	-9.775	-0.2		-2.5312500000000004	2.4
	-9.73125	0.9		-1.8624999999999998	4.5
	-10.218750000000002	0.4		-0.7374999999999997	2.9
	-8.3125	-3		-0.66875	1
	-7.456250000000001	-4.9		1.44375	2.9
	-8.775	-2.5		-1.5437499999999997	5.3
	-10.425	-0.8		-2.80625	4.9
	-9.7125	-4.6		-2.2125	1.3
Jan.	-10.0875	-8.7		-1.9562499999999998	-2.5
	-9.34375	-5.3		-1.45	2.2
	-8.468749999999998	-12.1		-1.8187499999999999	-6.5
	-9.89375	-15.5		-0.4937499999999999	-5.7
	-11.75	-18.3		-2.34375	-11.9
	-12.66875	-17.3		-4.5375	-4.4
	-12.5875	-6.6		-3.875	-1.1
	-8	-12.7		-1.5999999999999999	-4.5
	-8.9875	-21.6		-1.5312499999999998	-12.4
	-8.399999999999999	-18.5		-0.20625000000000002	-14.7
	-7.312500000000001	-15		-0.75	-7.5
	-9.1	-18.8		-1.21875	-7.8
	-8.25	-11.6		-0.70625	-4.5
	-8.1375	-14.9		-0.7812499999999998	-5.3
	-9.093750000000002	-14.2		-0.6187499999999999	-8.9
	-8.981250000000001	-15.8		-0.725	-8.2
	-8.406249999999998	-15.3		-0.10000000000000031	-3.6
	-8.3625	-12.4		0.031250000000000056	-6.1
	-9.29375	-7.7		-1.3312500000000003	-0.1
	-9.393749999999999	-6.9		-0.9125000000000002	-0.8
	-9.318750000000001	-10.4		0.3749999999999998	-3.3
	-10.03125	-4.9		-2.4062499999999996	4.5
	-8.7125	-2.1		0.29374999999999996	2.8
	-8.875	-7.9		-0.8625000000000002	-1
	-8.712499999999999	-3.2		-2.1375	-0.1
	-9.9125	-2.5		-2.8062499999999995	4.3
	-11.181249999999999	0		-2.3375	7.3
	-11.13125	-3.2		-1.9062500000000007	5.1
	-9.95625	-0.5		-2.3187499999999996	5.2
	-11.1625	-0.4		-1.3750000000000002	13.4
	-9.306249999999999	-0.5		-0.7437499999999998	8.4
Feb.	-8.450000000000001	2.4		-0.5000000000000001	10.3
	-8.543750000000001	2.1		0.47500000000000003	9
	-8.356250000000001	4.8		0.26875000000000016	8.8
	-8.53125	6.7		1.6875000000000002	17.5
	-8.174999999999999	1.7		1.35	7.4
	-5.7124999999999995	-1.1		4.04375	3.4
	-4.9312499999999995	-4.4		3.35	2.4
	-5.249999999999999	-10.8		3.1562499999999996	-5.2
	-5.63125	-11.3		2.2437499999999995	-1.1
	-6.981250000000001	-6.3		1.5750000000000002	5.8
	-7.825	-4.1		0.7812500000000001	2.2
	-7.562499999999999	-3.3		4.01875	5.9
	-6.556249999999999	-1.6		4.325	12.6
	-6.25625	-3.3		5.0062500000000005	1.9
	-4.75625	-3.9		5.3687499999999995	1.2
	-6.368750000000001	-2.5		3.7125000000000004	2.4
	-6.3625	0.6		3.76875	2.1
	-3.5999999999999996	-0.9		5.51875	2.9
	-3.4937500000000004	1.9		4.93125	10.2
	-4.018750000000001	4.8		6.41875	16.4
	-2.83125	3.2		6.68125	17.7
	-0.925	0.2		8.487499999999999	18.3
	0.5125000000000001	5.5		9.025	21.2
	0.3124999999999999	3.8		8.587499999999999	11.4
	-1.28125	1.7		8.200000000000001	8.6
	-1.76875	-2		8.63125	8.5
	0.37499999999999994	2.3		10.66875	7.1
	1.4437499999999999	-0.6		11.818749999999998	2.8
Mar.	0.8125	-0.2		10.781249999999998	10.8
	1.0250000000000001	-11.3		10.612499999999999	-4.4
	1.6000000000000003	-13.8		10.6625	-1.6
	0.3937500000000001	-5.6		10.181249999999999	12.8
	-0.22500000000000006	1.8		9.706249999999999	5.9
	0.8249999999999997	5		11.549999999999997	13.3
	1.9437499999999999	5.3		11.343750000000002	17.6
	1.4000000000000001	5.4		10.506249999999998	15.7
	1.5875	-0.9		9.5125	10
	1.45	2.3		8.5875	14.7
	0.8687500000000001	3		8.10625	19.6
	0.36875	11		9.5875	20.3
	1.15	2.1		10.118749999999999	10.1
	1.5	-2.5		10.650000000000002	12.7
	2.8625	1.3		12.65625	15.3
	2.9187499999999997	7.7		13.493749999999999	25.6
	3.3937500000000003	9.7		13.187500000000002	19.2
	1.6375	4.4		11.68125	9.7
	3.3499999999999996	4.3		13.88125	21.4
	3.53125	4.6		12.799999999999999	11.5
	2.89375	3.9		13.75	6.4
	3	0.9		13.468749999999998	16
	3.9499999999999993	2.6		14.237499999999999	11.3
	3.8312500000000003	0.3		13.406250000000002	10.3
	4.625	3.4		14.56875	26.5
	4.8500000000000005	7.6		16.743750000000002	19
	4.68125	5.2		14.462499999999999	11.3
	4.4375	2.8		15.68125	14.1
	6.2875000000000005	10.4		16.24375	25
	5.581250000000001	13.9		17.125	26.3
	5.162499999999999	17.9		14.6125	31.6
Apr.	5.431250000000001	15.8		14.768750000000002	24.5
	4.78125	13		14.70625	26.7
	5.450000000000001	7.6		15.525	28
	5.125	1.9		15.14375	13.7
	4.8812500000000005	1		14.89375	14.3
	5.3062499999999995	-0.4		15.025000000000004	20.5
	5.062499999999999	9.8		15.181250000000002	30.2
	5.6312500000000005	15.5		15.850000000000001	30.3
	6.68125	14.2		16.14375	29.1
	6.76875	10.7		16.875	21.6
	6.53125	7		15.90625	25.5
	6.593750000000002	8.9		17.443749999999998	27.6
	6.0687500000000005	12		16.76875	22.4
	6.993750000000002	8.3		17.1	20.4
	8.499999999999998	7.5		17.40625	16.1
	8.41875	3.4		15.93125	15.6
	8.40625	2.5		17.15625	13.8
	8.50625	1.6		17.518749999999997	16.3
	8.699999999999998	6.2		17.69375	27.4
	8.45	7.1		19.912499999999998	29.1
	9.39375	9.8		19.374999999999996	19.6
	9.512500000000001	3.9		19.71875	14.2
	10.887500000000001	1.6		22.281250000000004	19.4
	11.01875	7.3		20.4875	25.1
	10.350000000000001	9.4		20.218750000000004	25.8
	10.65625	5.2		20.743750000000002	23.5
	10.725000000000001	6.2		19.600000000000005	23.7
	10.0875	10.5		20.393749999999997	27.8
	9.981250000000001	11.3		20.4875	24.5
	10.525	6.6		20.349999999999998	27.6
May	11.44375	14.7		21.193749999999998	30.5
	11.19375	17.7		22.431249999999995	30.9
	12.074999999999998	17.7		21.3625	28.8
	11.143749999999999	17.5		21.43125	25.2
	11.368750000000002	9.3		21.306250000000006	18.9
	12.118750000000002	5.6		20.874999999999996	15.6
	12.549999999999999	9.7		20.081250000000004	21.8
	11.7125	11.1		22.087500000000002	22.9
	12.568750000000001	13.6		22.83125	26.7
	13.999999999999996	12.4		23.96875	29.4
	14.424999999999999	14.1		23.48125	32.2
	13.793750000000001	13.6		23.381249999999998	33.6
	14.593750000000002	15		24.631250000000005	34
	15.031249999999995	17.7		24.10625	33.6
	14.88125	14		24.812500000000004	32.3
	15.04375	16.7		24.574999999999996	32.3
	14.28125	15.2		24.693749999999998	29.3
	13.750000000000002	16.9		24.38125	32.2
	14.418749999999998	12.2		24.218749999999996	30.6
	14.95625	13.7		25.612499999999994	31
	16.099999999999998	13.9		26.525000000000006	33
	16.78125	20.2		26.481250000000003	29
	15.737499999999999	22.1		26.36875	35
	16.118749999999995	21.1		25.343750000000004	29.5
	15.2625	21.5		25.462500000000002	28.7
	15.3125	21.9		26.48125	34.1
	16.075000000000003	21.4		26.025	30.7
	17.06875	17.3		27.018749999999997	24.4
	16.99375	13.7		26.443749999999998	28.5
	16.40625	16.7		26.45625	29.5
	17.043750000000003	15		26.768749999999997	23.8
Jun.	17.981249999999996	10.6		27.881249999999998	28
	17.48125	15.5		28.5125	25.9
	18.287499999999998	14.2		28.71875	24.4
	18.9875	15.5		27.65625	26.3
	18.193749999999998	13.2		28.337500000000002	28.8
	18.35	13.3		28.74375	28.7
	19.400000000000002	15.2		28.318749999999998	19.8
	18.812500000000004	12.1		28.14375	24.2
	18.39375	15.4		27.6	29.1
	17.58125	17.6		25.799999999999997	29.4
	17.60625	16.7		27.087499999999995	28.3
	18.375	18		27.043749999999996	26.1
	17.706249999999997	17.7		27.58125	26.4
	17.893749999999997	20.1		27.9125	31.7
	19.037499999999994	24.2		27.75	35.3
	19.1125	25		28.66875	36.5
	17.881249999999998	23.5		26.825	36.5
	17.16875	22.6		26.387499999999996	36.7
	17.349999999999998	20.8		28.349999999999998	35
	18.7875	20.1		28.89375	31.6
	19.91875	20.1		28.474999999999998	32.3
	19.837500000000006	19		28.774999999999995	32.4
	19.39375	18.4		27.893749999999997	34
	18.668750000000003	19.5		27.081249999999997	34.4
	18.2	21.5		28.262500000000006	32.6
	18.825000000000003	20.4		28.3375	33.4
	19.075	19.5		28.612499999999997	33.2
	19.306250000000002	17.3		28.912499999999998	34
	18.78125		18	28.581249999999997		36.1
	18.931250000000002		20	29.08125		30.7
Jul.	19.043750000000003		21.5	28.368750000000002		31.2
	19.25		21.7	27.99375		31.6
	18.51875		22.2	28.618749999999995		30.8
	19.51875		19	29.393750000000004		29.1
	20.481249999999996		15	30.256249999999998		25
	20.2875		15.7	29.018750000000004		24
	19.437499999999993		19.5	28.7125		28.6
	19.675000000000004		19.5	29.49375		29.4
	19.88125		19.7	29.81875		29.8
	19.443749999999998		19.4	29.0125		28.8
	19.1375		18.8	29.2		29.2
	19.881250000000005		19.6	29.037499999999998		28.6
	19.849999999999998		19.3	28.8625		28.4
	18.875		18.7	28.43125		28.2
	18.06875		18.1	27.743750000000006		28
	17.793750000000003		17.8	27.15625		27
	17.793750000000003		17.5	27.900000000000002		27.9
	18.068749999999994		17.6	28.962500000000006		28.7
	18.575000000000003		18.4	29.099999999999994		28.8
	18.512500000000003		18.4	28.71875		28.7
	17.74375		17.7	28.43125		28.8
	18.375		17.9	28.868750000000002		28
	18.41875		17.7	28.050000000000004		27.9
	18.400000000000002		18.7	27.749999999999996		27.9
	18.175		18.8	27.875000000000004		28.2
	18.487499999999997		18.7	28.325		28.3
	17.9375		18.1	27.843750000000004		27.8
	18.16875		17.9	27.8625		28.1
	17.818749999999998		17.9	27.71249999999999		27.3
	17.38125			27.425
	16.918749999999996			27.231250000000003
Aug.	16.3375			26.99375
	17.43125			27.925
	17.7375			27.356250000000003
	17.393749999999997			27.962500000000002
	17.450000000000003			28.062499999999996
	18.168750000000003			28.0375
	18			27.8625
	16.218749999999996			27.15
	16.8625			28.574999999999996
	17.662499999999998			28.981250000000003
	17.9625			28.85
	17.568750000000005			28.443749999999998
	18.40625			28.887500000000006
	18.1875			28.718750000000007
	18.456249999999997			29.29375
	17.662499999999998			27.581250000000004
	17.037499999999998			27.468750000000004
	17.400000000000002			27.825
	16.625			27.04375
	16.35			27.2125
	15.950000000000001			26.625
	15.274999999999997			26.562499999999996
	15.606250000000001			26.16875
	14.69375			26.35625
	14.249999999999996			25.112499999999997
	13.9625			26.025
	14.906249999999998			25.781250000000004
	13.96875			24.193749999999998
	14.04375			25.487499999999997
	14.187499999999998			25.762499999999996
	13.631250000000003			25.293749999999996
Sep.	14.606250000000001			25.79375
	14.756249999999998			25.7375
	15.037499999999998			25.55625
	14.562499999999998			25.481250000000003
	15.05625			25.512499999999996
	15.69375			26.650000000000002
	14.69375			24.118750000000002
	13.143749999999999			23.53125
	13.2875			23.225
	12.756249999999998			23.718750000000004
	12.75625			23.174999999999997
	12.124999999999998			23.550000000000004
	12.624999999999998			23.69375
	11.63125			22.84375
	11.11875			22.50625
	11.55625			22.987499999999997
	12.3			23.375
	12.03125			22.018750000000004
	11.2625			22.35625
	9.825000000000001			20.650000000000002
	10.43125			20.987500000000004
	10.693750000000001			19.4625
	10.187500000000002			19.94375
	9.48125			21.506250000000005
	9.968750000000002			21.34375
	9.906250000000002			21.05
	9.093749999999998			19.768749999999997
	9.537500000000001			19.962500000000002
	9.081249999999999			17.443749999999998
	8.15625			16.7625
Oct.	7.43125			16.112499999999997
	6.38125			16.19375
	6.34375			16.674999999999997
	6.899999999999999			17.4625
	6.612500000000001			16.49375
	6.562500000000001			17.412499999999998
	6.706249999999999			15.812499999999996
	6.025			16.599999999999998
	7.893750000000001			18.03125
	7.750000000000001			16.05625
	6.893750000000001			15.4375
	6.16875			14.687499999999998
	4.981249999999999			13.156250000000002
	3.06875			10.250000000000002
	2.44375			12.0125
	5.5625			12.8
	3.5374999999999996			11.13125
	2.0375			12.975000000000001
	3.5312500000000004			13.637500000000001
	4.16875			13.60625
	5.331250000000001			13.3375
	4.5375			13.343750000000002
	4.7625			13.74375
	2.6062499999999997			11.100000000000001
	2.45625			11.05
	2.9124999999999996			12.24375
	2.3562499999999997			11.218750000000002
	0.9374999999999999			10.925
	-0.8187499999999999			6.7625
	-1.6500000000000001			7.350000000000001
	-0.8562499999999998			8.2875
Nov.	0.5750000000000001			9.6625
	1.1812500000000001			8.81875
	0.5437500000000001			8.2875
	-0.5125			7.2437499999999995
	-0.7000000000000001			8.15625
	0.6187499999999999			7.55
	-1.4874999999999998			7.90625
	-2.85			7.031249999999999
	-0.41875000000000007			6.656250000000001
	-0.6125			7.50625
	-1.1312500000000003			5.88125
	-2.0375			5.8125
	-3.76875			3.7375
	-3.7187499999999996			3.8249999999999997
	-2.2437500000000004			5.88125
	-2.55625			4.825
	-2.5875			3.1562499999999996
	-2.5625			4.543749999999999
	-2.54375			4.425000000000001
	-2.3312500000000003			5.6499999999999995
	-2.7937499999999993			3.88125
	-5.83125			0.7437499999999999
	-5.79375			1.2875
	-3.44375			3.14375
	-4.593749999999999			2.7062500000000003
	-4.05625			2.4
	-4.637499999999999			2.225
	-4.99375			2.25
	-4.1625			2.1999999999999997
	-4.581250000000001			3.937499999999999
Dec.	-3.7562499999999996			3.0812499999999994
	-3.9499999999999997			2.343750000000001
	-4.706250000000001			1.3
	-6.737500000000001			0.6375000000000002
	-5.825			1.4312500000000001
	-4.65625			2.2687500000000003
	-4.0875			2.08125
	-5.25			1.8187499999999999
	-5.3625			1.6999999999999997
	-4.84375			2.25625
	-4.643750000000001			1.6749999999999998
	-4.95625			1.3375
	-5.6625000000000005			2.13125
	-4.34375			1.8812499999999996
	-5.3625			2.33125
	-6.843750000000001			-0.5125000000000001
	-8.259999999999998			-0.46666666666666673

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

37°C

Highest Temp

2 Jul. 26

-22°C

Lowest Temp

23 Jan. 26

Seasonal Breakdown

Hottest MonthJuly33.84°C

Coldest MonthJanuary-9.13°C

Wettest MonthJune10.29mm

Windiest MonthApril28.65km/h

Iowa City Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in Iowa City historically?

July is historically Iowa City's hottest month, with average maximum temperatures around 29°C. During peak heatwave events, the highest recorded temperatures have reached 39°C on 2023-08-23.

2. What is the coldest month in Iowa City historically?

January is Iowa City's coldest month, with average minimum temperatures around -9°C. The all-time record low of -35°C was recorded on 2019-01-31.

3. What is the average annual rainfall in Iowa City over the past 17 years?

Iowa City's average annual rainfall is approximately 1092.6mm, based on records spanning 17 years.

4. How many rainy days does Iowa City experience on average per year?

Iowa City historically records approximately 157.4 rainy days per year. June has the highest number of rain days at an average of 15.8 days.

5. What is the all-time highest temperature ever recorded in Iowa City?

The all-time highest temperature recorded in Iowa City is 39°C on 2023-08-23.

6. What is the all-time lowest temperature ever recorded in Iowa City?

The all-time lowest temperature recorded in Iowa City is -35°C on 2019-01-31.

7. What is the windiest time of year in Iowa City historically?

Iowa City experiences its strongest winds during April. The historic gust record of 56.2 kph was recorded on 2026-03-15.

8. What is the highest and lowest humidity in Iowa City during a year?

Usually, Iowa City's humidity peaks in January at around 82.4% and drops to its lowest in October at approximately 67.2%.

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Iowa City Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

Iowa City Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Iowa City Historic Weather RecordsAnalyse hottest, coldest, windiest & wettest days

Iowa City Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

Recent Blogs On Weather

World Top 10 Hottest Cities Are All in India Again - May 2026

Delhi Air Quality 2026 vs 6-Year Historical PM2.5 Data

What 17 Years of Delhi Temperature Data Reveal About May's Heatwave Escalation

World Top Hottest Cities Belong to India - April 2026

Construction Air Pollution: The Invisible Hazard Reshaping India's Urban Air

Kitchen Air Pollution: How Cooking Can Spike Your Indoor AQI

Mumbai Air Quality Comparison of 2025 Vs 2026 (Jan-Feb)

Why AQI Standards Vary Across the World - And Why Air Quality Index Matters More Than Ever

Why Winter Suffocates and Monsoon Saves Delhi Air Quality 2025?

Winter vs Summer Air: Why Air Pollution Behaves So Differently Across Seasons

Iowa City Historic Weather Records
Analyse hottest, coldest, windiest & wettest days