Spring (March–May): Average 38–63°F, climate gradually transitions from cold to warm, rainfall gradually increases, with the most rainfall in May. Common activities: Outdoor walks, flower viewing. Suggested clothing: Spring jacket, long-sleeved shirts, comfortable shoes.
Summer (June–August): Average 73–73°F, warm and humid climate, relatively high rainfall. Common activities: Camping, water activities. Suggested clothing: Light and breathable clothing, short-sleeved shirts, shorts.
Autumn (September–November): Average 66–39°F, climate transitions from warm to cool, rainfall decreases. Common activities: Maple leaf viewing, outdoor picnics. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
Winter (December–February): Average -6.3–-34.7°F, cold and dry climate, snowfall possible. Common activities: Skiing, indoor activities. Suggested clothing: Heavy warm clothing, down jackets, scarves, gloves, hats.
Iowa climatological average
Annual average temperature: approx. 50.9°F / Annual rainfall: approx. 1132 mm / Summer humidity: 60%–70% / Rainiest month: May
Iowa monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
20.7°F
37.7
February
29.1°F
25.3
March
38.3°F
98.5
April
49.5°F
128.8
May
63.7°F
163.6
June
73.4°F
163.3
July
73.9°F
145.2
August
73°F
118.8
September
66.6°F
88
October
53.8°F
64.4
November
39.6°F
60.3
December
29.3°F
38.8
Iowa weather for the next seven days
6/18
Thursday
Patchy rain nearby
75.6°F/57.7°F
6/19
Friday
Patchy rain nearby
69.9°F/51.9°F
6/20
Saturday
Patchy rain nearby
74.5°F/57°F
6/21
Sunday
Sunny
68.8°F/56.2°F
6/22
Monday
Sunny
71.4°F/50°F
6/23
Tuesday
Patchy rain nearby
70.6°F/58.2°F
6/24
Wednesday
Patchy rain nearby
76.3°F/57.5°F
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