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Iowa climate
Climate normals for 26 cities in Iowa — find your city, or get the regional gist.
Across the 26 cities we cover in Iowa, annual averages run 8–11°C. Annual precipitation ranges 773–1042 mm across those cities. The region spans 2 Köppen zones (Dfa · Dwa).
Largest cities
Largest cities in Iowa
The most populous cities — most visitors want one of these. Tap a name for month-by-month detail.
Des Moines
Population 214k
Warm summers, very cold winters
Avg
−6°C in January, 24°C in July
Cedar Rapids
Population 130k
Warm summers, very cold winters
Avg
−6°C in January, 24°C in July
Davenport
Population 103k
Warm summers, very cold winters
Avg
−5°C in January, 24°C in July
Sioux City
Population 83k
Warm summers, very cold winters
Avg
−6°C in January, 24°C in July
Iowa City
Population 74k
Warm summers, very cold winters
Avg
−7°C in January, 23°C in July
Waterloo
Population 68k
Warm summers, very cold winters
Avg
−7°C in January, 24°C in July
Climate types in Iowa:Dfa
Hot-summer humid continentalDwa
Monsoon-influenced hot-summer humid continental
Find a city in Iowa
Search 26 cities by name.