HailByAddress

NOAA Storm Events, 2016-2025

Hail in Iowa, county by county

3,386 reported hail events across 99 countys, largest 4.00 in.

Reports
3,386
2016-2025
Counties affected
99
of all Iowa counties with hail
Largest stone
4.00 in
in Scott County
Reports ≥ 2 in
270
8.0% of all reports
0295589161718192021222324252016: largest 2.50 in2017: largest 3.00 in2018: largest 3.00 in2019: largest 2.75 in2020: largest 4.00 in2021: largest 4.00 in2022: largest 3.00 in2023: largest 4.00 in2024: largest 3.50 in2025: largest 4.00 inlargeststone (in)hail reports per year

Reports have been roughly steady (+0%).

Counties ranked by hail reports

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#CountyReportsLargest≥ 2 in≥ 4 inMost recent
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Iowa hail summary

The counties with the most reported hail in Iowa are Polk (162 reports), Story (126 reports), Linn (107 reports). The largest stones on record in this period were reported in Scott (4.00 in), Pottawattamie (4.00 in), Adair (4.00 in).

What this does not tell you

A county is a large area and hail swaths are narrow, so a county count cannot tell you whether a particular property was hit. The methodology page sets out what this record can and cannot support.

Frequently asked questions

Which Iowa county gets the most hail?
By reported events in this record, Polk County leads with 162 reports, ahead of Story and Linn.
What is the largest hailstone recorded in Iowa?
The largest reported stone in this period is 4.00 in, in Scott County. Hailstone records are reported measurements, and estimates from photographs are common.
How often does Iowa get damaging hail?
8.0% of the 3,386 reported events in this period reached 2 inches or more, the size at which shingle and vehicle damage becomes likely.

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