Johnson County, IA hail map
Every NOAA hail report in Johnson County, Iowa from the last 12 months — 19 reports, largest 2.75". Updated daily from Storm Prediction Center data.
Recent hail reports in Johnson County
| Date | Hail size | Coordinates |
|---|---|---|
| Apr 14 | 1.25" | 41.660, -91.550 |
| Apr 14 | 1.0" | 41.680, -91.550 |
| Apr 14 | 1.0" | 41.670, -91.530 |
| Apr 14 | 1.25" | 41.660, -91.550 |
| Apr 14 | 1.5" | 41.660, -91.540 |
| Apr 2 | 1.75" | 41.630, -91.530 |
| Mar 15 | 1.5" | 41.550, -91.530 |
| Mar 11 | 2.75" | 41.650, -91.390 |
| Mar 11 | 1.0" | 41.660, -91.510 |
| Mar 11 | 1.0" | 41.660, -91.530 |
| Mar 11 | 1.25" | 41.640, -91.500 |
| Mar 11 | 1.0" | 41.640, -91.500 |
| Mar 11 | 1.5" | 41.640, -91.510 |
| Mar 11 | 1.25" | 41.640, -91.510 |
| Mar 11 | 1.0" | 41.650, -91.510 |
Showing the 15 most recent of 19 reports in the last 12 months.
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Johnson County hail FAQ
When did it last hail in Johnson County, IA?
The most recent NOAA hail report in Johnson County was on Apr 14 with 1.25" hail. Every report from the last 12 months is listed above.
How much hail does Johnson County get?
Johnson County recorded 19 official NOAA hail reports in the last 12 months. The largest stone was 2.75".
Was the hail in Johnson County big enough to damage roofs?
One-inch hail (quarter size) is the standard damage threshold for asphalt shingles, and Johnson County has seen hail up to 2.75" in the last 12 months — large enough to bruise shingles and cause granule loss that surfaces as leaks months later.
How do roofing contractors use this hail data?
After a hail event, contractors canvass the hit area — but knocking blind wastes crew hours. Roofbird scores every roof in a hit ZIP code from satellite imagery and returns a ranked list of the homes most likely needing replacement, with the owner's name and DNC-scrubbed phone number on unlock.