◆ ONSLOW, IA HAIL HISTORY · JONES COUNTY
Onslow, IA hail history & hail map
Onslow, Iowa has had 5 hail events in the past 5 years, with hail up to 3.00″ (Baseball). Most recent: Jun 28, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
5Hail events in the past 5 years
3.00″Largest recorded hail · Baseball
3.00″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Onslow, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Onslow
| Date | Peak hail | Sources |
|---|---|---|
| Jun 28, 2026 | 1.00″ Quarter | Radar 1.00″ |
| Apr 15, 2026 | 1.25″ Half Dollar | Radar 1.25″ |
| Apr 14, 2026 | 3.00″ Baseball | 1 ground report (max 3.00″) |
| Jul 31, 2024 | 1.00″ Quarter | Radar 1.00″ |
| Jul 14, 2023 | 1.25″ Half Dollar | Radar 1.25″ |
More Iowa hail history
Events count days with NOAA MRMS radar hail over Onslow (42.120, -90.980) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.