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Iowa Weather History

Iowa weather history reports an annual average temperature of 47.6 °F with an average high temperature of 58.3 °F and an average low temperature of 37.2 °F.

The average weather in Iowa indicates a relative humidity in the morning of 81.0%, and 67.3% in the afternoon and evening. The annual precipitation average is 33.70 inches. The yearly cloudiness breakdown for Iowa indicates 98 days of clear skies, 100 days of partly cloudy skies, and 167 annual cloudy days.
Temperature and Humidity
Iowa Average Temperatures
Iowa Relative Humidity
MeasurementPer Year
Humidity (AM)81.0%
Humidity (PM)67.3%
Low Temperature Yearly Average37.2 °F
High Temperature Yearly Average58.3 °F
Days under 32ºF146 Days
Days above 90ºF17 Days
Precipitation Inches Per Year33.70"
Precipitation Days100 Days
Clear Days98 Days
Partly Cloudy Days100 Days
Cloudy Days167 Days

Weather History by State:

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