Weather in Iowa City
Iowa City has a continental climate with cold, snowy winters and warm, often humid summers. Spring is changeable with frequent rain and thunderstorms; autumn brings mild, crisp days and colorful foliage. Winters regularly drop below freezing, so be prepared for snow and ice.
Iowa City current weather
Best time to visit
Late spring to early fall (May–September), especially September for warm, sunny days and fewer storms.
Jan
Max: -1°C / Min: -9°C
Rayiny days: 10
Precipitation: 40mm
Feb
Max: 1°C / Min: -8°C
Rayiny days: 10
Precipitation: 46mm
Mar
Max: 9°C / Min: -1°C
Rayiny days: 13
Precipitation: 70mm
Apr
Max: 17°C / Min: 5°C
Rayiny days: 15
Precipitation: 109mm
May
Max: 22°C / Min: 12°C
Rayiny days: 17
Precipitation: 123mm
Jun
Max: 27°C / Min: 17°C
Rayiny days: 16
Precipitation: 128mm
Jul
Max: 29°C / Min: 19°C
Rayiny days: 14
Precipitation: 90mm
Aug
Max: 28°C / Min: 18°C
Rayiny days: 13
Precipitation: 89mm
Sep
Max: 25°C / Min: 13°C
Rayiny days: 11
Precipitation: 86mm
Oct
Max: 18°C / Min: 7°C
Rayiny days: 11
Precipitation: 79mm
Nov
Max: 10°C / Min: 0°C
Rayiny days: 10
Precipitation: 51mm
Dec
Max: 2°C / Min: -6°C
Rayiny days: 11
Precipitation: 50mm
Weather in Iowa City
The chart shows the yearly trend of average daily highs, lows, and monthly precipitation.
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