Monthly weather forecast and climate
Iowa City, IA

A view in the fall of golden and brown trees in a scenic, neat lawn near the mighty grandeur of the Old Capitol building, Iowa City
A view in the fall of golden and brown trees in a scenic, neat lawn near the mighty grandeur of the Old Capitol building, Iowa City
January is the coldest month, with an average high-temperature of 32°F (0°C) and an average low-temperature of 15.1°F (-9.4°C). Throughout January, 1.5" (38.1mm) of precipitation is accumulated.
Weather in January »
The average high-temperature, in February, is 35.1°F (1.7°C), while the average low-temperature is 18°F (-7.8°C). February is the month with the least rainfall, with 1.4" (35.6mm) of accumulated precipitation.
Weather in February »
In Iowa City, Iowa, the average high-temperature is 46°F (7.8°C), and the average low-temperature is 27°F (-2.8°C). During March, Iowa City regularly aggregates up to 2.3" (58.4mm) of precipitation.
Weather in March »
In Iowa City, the average high-temperature is 61°F (16.1°C), and the average low-temperature is 39°F (3.9°C). During April, Iowa City regularly aggregates up to 3" (76.2mm) of precipitation.
Weather in April »
In May, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 50°F (10°C). During May, Iowa City regularly aggregates up to 4.2" (106.7mm) of precipitation.
Weather in May »
In June, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 60.1°F (15.6°C). June is the month with the most rainfall, with 4.7" (119.4mm) of accumulated precipitation.
Weather in June »
July is the warmest month, with an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 64°F (17.8°C). Throughout July, 4.1" (104.1mm) of precipitation is accumulated.
Weather in July »
In Iowa City, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 62.1°F (16.7°C). During August, Iowa City regularly aggregates up to 3.9" (99.1mm) of precipitation.
Weather in August »
The average high-temperature, in September, is 78.1°F (25.6°C), while the average low-temperature is 53.1°F (11.7°C). In Iowa City, in September, 3.8" (96.5mm) of precipitation is typically accumulated.
Weather in September »
The average high-temperature, is 66.9°F (19.4°C), while the average low-temperature is 42.1°F (5.6°C). In Iowa City, Iowa, in October, 2.7" (68.6mm) of precipitation is typically accumulated.
Weather in October »
In November, in Iowa City, the average high-temperature is 48.9°F (9.4°C), and the average low-temperature is 28.9°F (-1.7°C). Throughout November, 2.1" (53.3mm) of precipitation is accumulated.
Weather in November »
In December, the average high-temperature is 36°F (2.2°C), and the average low-temperature is 19°F (-7.2°C). During December, Iowa City regularly aggregates up to 1.6" (40.6mm) of precipitation.
Weather in December »

What is the coldest month in Iowa City?

January is the coldest month in Iowa City, Iowa, with an average high-temperature of 32°F (0°C) and an average low-temperature of 15.1°F (-9.4°C).

How much does it rain in Iowa City?

Throughout the year, 35.3" (896.6mm) of rain is accumulated.

What is the driest month in Iowa City?

The month with the least rainfall in Iowa City is February when 1.4" (35.6mm) of precipitation is typically aggregated.

What is the wettest month in Iowa City?

The month with the most rainfall in Iowa City, Iowa, is June when 4.7" (119.4mm) of precipitation is typically aggregated.

When are the longest days in Iowa City?

The month with the longest days in Iowa City is June, with an average of 15.2h of daylight.

What is the warmest month in Iowa City?

With an average high-temperature of 87.1°F (30.6°C) and an average low-temperature of 64°F (17.8°C), July is the warmest month in Iowa City.

What is the month with the shortest days in Iowa City?

The month with the shortest days is December, with an average of 9.2h of daylight.
Average rainfall - Iowa City, IA
Average daylight - Iowa City, IA

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

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