Midwest Region•Capital: Des Moines
Iowa Snow Day Predictor
IA
Iowa open prairie terrain makes blowing snow and ground blizzards as dangerous as falling snow. Sustained 35 mph winds create massive drifts across county gravel roads.
Typical Closure Threshold
5 to 9 inches (or ground blizzards with zero visibility)
Climate Classification
Midwestern Humid Continental
Average Annual Snow Days
12–22 days
Iowa Cities & School Districts
Select your city below for localized school closure probability forecasts and district contacts.
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Department of Transportation Plowing Operations
Iowa DOT operates 900+ trucks equipped with wing plows and dashcams broadcasting live to 511ia.org.
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School Closure Decision Framework
County school districts consult with township plow operators and county sheriffs before 5:30 AM.
Iowa Snow Day FAQs
Q:What is a ground blizzard in Iowa?
A ground blizzard occurs when strong winds whip already fallen snow into whiteouts with zero visibility, even under clear blue skies. These trigger immediate school cancellations.