Iowa City, IA weather and climate in 2025
Day
23 °C
Night
10 °C
Sea
0 °C
Precipitation
108 mm
in month
Rainy days
12 days
in month
Daylight
14 hours
average
Sunshine
9 hours
average
Humidity
66 %
Day
23 °C
Night
10 °C
Sea
0 °C
Precipitation
108 mm
in month
Rainy days
12 days
in month
Daylight
14 hours
average
Sunshine
9 hours
average
Humidity
66 %
Overview: Iowa City, IA
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Weather overview for Iowa City, IA
Weather overview
Iowa City, IA (United States of America) in general has a mild continental climate. The day temperatures range from 0 °C (31 °F) in January to 30 °C (86 °F) in July. The driest month is February with just 7 days of rain, on the contrary, the month when it rains the most is May with 12 days of rain. The highest night temperatures could be experienced in July with 19 °C (65 °F), the lowest in January with -10 °C (14 °F).
January weather
The beginning of the descent of the number of rainy days could be noticed, the value of this measure is 7 days in Iowa City, IA, while the rainfall amount is on its minimum, with its value being 28 mm (1.10 in). The minimum of the day temperature can be noticed, the value of this measure is 0 °C (31 °F), and the night temperature reaches its minimum too, its value is -10 °C (14 °F). The number of sun hours (without clouds) rise's start could be observed, its value is 5 hours.
February weather
The number of rainy days is on its minimum, with its value of 7 days in Iowa City, IA. The night temperature starts to rise, its value is -8 °C (18 °F), and the day temperature starts to rise as well in this month. The rise of the number of sun hours (without clouds) can be observed, its value is 6 hours.
March weather
The number of rainy days starts to rise, its value is 9 days in Iowa City, IA, and the rainfall amount starts to rise as well, its value is 56 mm (2.22 in). The rise of the night temperature can be observed, its value is -1 °C (29 °F), and the rise of the day temperature can be observed as well, with its value of 10 °C (49 °F). The number of sun hours (without clouds) continues to rise, the value of this measure is 7 hours.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.April weather
The number of rainy days continues to rise, with its value of 11 days in Iowa City, IA, and the rise of the rainfall amount can be observed too, with its value being 87 mm (3.42 in). The rise of the day temperature can be observed, and the night temperature rises similarly to the previous month too, with its value being 5 °C (40 °F). The minimum of the humidity can be noticed in April. The maximum of the wind speed can be noticed, with its value being 5.
May weather
The rise of the day temperature can be observed, the value of this measure is 23 °C (73 °F) in Iowa City, IA, and the night temperature rises similarly to the previous month as well, the value of this measure is 10 °C (51 °F). The tourist season is at its beginning. The maximum of the number of rainy days can be noticed, the value of this measure is 12 days, while the rise of the rainfall amount can be observed. The number of sun hours (without clouds) continues to rise, the value of this measure is 9 hours.
June weather
The day temperature rises similarly to the previous month, the value of this measure is 28 °C (83 °F) in Iowa City, IA, and the night temperature rises similarly to the previous month too, with its value of 16 °C (61 °F). The number of rainy days descent's start could be observed, its value is 11 days, while the maximum of the rainfall amount can be noticed in June. The tourist season is close to its peak. The number of sun hours (without clouds) continues to rise.
July weather
The ongoing tourist season is noticeable in Iowa City, IA. The day temperature is on its maximum, the value of this measure is 30 °C (86 °F), and the maximum of the night temperature can be noticed too in this month. The rainfall amount descent's start could be observed, while the number of rainy days descents similarly to the previous month, with its value being 10 days. The number of sun hours (without clouds) is on its maximum, with its value being 10 hours.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.August weather
The day temperature starts to descent in Iowa City, IA, and the night temperature starts to descent too, with its value being 17 °C (63 °F). The ongoing tourist season is noticeable. The rainfall amount continues to descent, the value of this measure is 108 mm (4.26 in). The number of sun hours (without clouds) descent's start could be observed in August. The wind speed is on its minimum in August.
September weather
The descent of the day temperature can be observed, the value of this measure is 25 °C (77 °F) in Iowa City, IA, and the night temperature descents similarly to the previous month too, the value of this measure is 12 °C (54 °F). The number of rainy days starts to descent, its value is 9 days, while the rainfall amount descents similarly to the previous month, with its value of 93 mm (3.67 in). The ongoing tourist season is noticeable. The number of sun hours (without clouds) continues to descent, with its value of 8 hours.
October weather
The descent of the day temperature can be observed, the value of this measure is 18 °C (64 °F) in Iowa City, IA, and the descent of the night temperature can be observed too, the value of this measure is 6 °C (42 °F). The rainfall amount descents similarly to the previous month, the value of this measure is 75 mm (2.95 in). The number of sun hours (without clouds) descents similarly to the previous month, its value is 7 hours.
November weather
The descent of the day temperature can be observed, with its value being 9 °C (49 °F) in Iowa City, IA, and the night temperature descents similarly to the previous month as well, with its value of -1 °C (31 °F). The descent of the rainfall amount can be observed, with its value being 54 mm (2.13 in). The descent of the number of sun hours (without clouds) can be observed, with its value being 4 hours.
December weather
The rainfall amount continues to descent, its value is 41 mm (1.63 in) in Iowa City, IA. The descent of the day temperature can be observed, its value is 1 °C (34 °F), and the descent of the night temperature can be observed as well, its value is -7 °C (19 °F). The number of sun hours (without clouds) reaches its minimum in December. The maximum of the humidity can be noticed in December. The day length is on its minimum, the value of this measure is 9 hours.
FAQs
How many hours of sun to expect in April in Iowa City, IA?
There is an average length of sunshine of 8 hours per day in April in Iowa City, IA. That's 1 hour more than in the previous month. This is an increase of 16 %.
What is the average number of rainy days in May in Iowa City, IA?
There are 12 days, which are rainy in May in Iowa City, IA, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.8 days of the week, or in general - 41 % days. An increase of 1 day compared to the previous month. This means that the value difference is 12 %.
Is June a good month to visit Iowa City, IA?
There are good conditions for visiting in Iowa City, IA in June. The daily temperatures in this month reach pleasant 28 °C (83 °F). The temperature of 16 °C (61 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
Is there a wet season in July in Iowa City, IA?
No, there is no wet season in Iowa City, IA in July - you can expect 10 days of rain during the month.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.Is it hot in Iowa City, IA in August?
In Iowa City, IA in August, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.
What temperature can I expect during the day in Iowa City, IA in September?
In Iowa City, IA in September, the average daily temperatures will be 25 °C (77 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. The value is lower by 4 °C (39 °F) than in the previous month. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.
Is there a dry season in Iowa City, IA in October?
No, October is not a dry month in Iowa City, IA, expect rain approximately 9 days in a month.
We make the most from 40 years of historical weather data to predict the best weather conditions.
Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.
We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.