Hail history in Cerro Gordo County, IA
Hail of 1 inch or larger was reported in Cerro Gordo County on 6 days between Jan 1, 2025 and Oct 26, 2026. The largest was 1.75 in (golf ball) on May 15, 2026, near 4 NW Thornton.
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Every hail day in Cerro Gordo County
| Storm day | Largest hail | Reports | Near | |
|---|---|---|---|---|
| Aug 7, 2026 | 1.00 in (quarter) | 1 | 2 WNW Thornton | Report for this date → |
| May 15, 2026 | 1.75 in (golf ball) | 5 | 4 NW Thornton | Report for this date → |
| Apr 13, 2026 | 1.00 in (quarter) | 1 | Mason City | Report for this date → |
| Sep 16, 2025 | 1.00 in (quarter) | 1 | Swaledale | Report for this date → |
| Jun 19, 2025 | 1.00 in (quarter) | 1 | 3 SE Hanlontown | Report for this date → |
| Apr 28, 2025 | 1.00 in (quarter) | 1 | 1 W Ventura | Report for this date → |
When hail falls in Cerro Gordo County
Where hail was reported
Places named in the reports, given as distance and direction from the nearest town, as the National Weather Service logs them.
- 1 W Ventura2 reports
- 1 WNW Clear Lake1 report
- 2 WNW Thornton1 report
- 3 SE Hanlontown1 report
- 4 NNW Swaledale1 report
- 4 NW Thornton1 report
- Clear Lake1 report
- Mason City1 report
- Swaledale1 report
More hail history in Iowa
See a sample satellite hail report →
Source and method
NOAA Storm Prediction Center preliminary local storm reports of hail 1 inch or larger, Jan 1, 2025 to Oct 26, 2026 (updated Oct 27, 2026). Dates are SPC storm days, which run from 12:00 UTC to 12:00 UTC (about 7 a.m. to 7 a.m. Central), so a late-night storm appears on the day it started. Reports come from spotters, the public and NWS offices: they can be revised, and a storm nobody reported is missing. SPC storm reports.
A Skybridge report goes further for one address and date: GOES satellite cloud-top and lightning data, NOAA MRMS radar hail size and these storm reports within 50 km, in one document reviewed by a person, with a code anyone can verify.