◆ AMES, IA HAIL HISTORY · STORY COUNTY
Ames, IA hail history & hail map
Ames, Iowa has had 13 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Jul 21, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
13Hail events in the past 5 years
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
1.50″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Ames, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Ames
| Date | Peak hail | Sources |
|---|---|---|
| Jul 21, 2026 | 0.75″ Penny | Radar 0.75″ |
| Jun 17, 2026 | 0.75″ Penny | Radar 0.75″ |
| Apr 16, 2026 | 1.25″ Half Dollar | 1 ground report (max 1.25″) |
| Jun 20, 2025 | 0.75″ Penny | 1 ground report (max 0.75″) |
| Mar 19, 2025 | 1.25″ Half Dollar | 4 ground reports (max 1.25″) |
| Jul 15, 2024 | 1.50″ Ping Pong Ball | Radar 1.50″ |
| Apr 30, 2024 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| Apr 27, 2024 | 0.75″ Penny | 1 ground report (max 0.75″) |
| Jun 4, 2023 | 0.88″ Nickel | 1 ground report (max 0.88″) |
| May 7, 2023 | 2.50″ Tennis Ball | 4 ground reports (max 2.50″) |
| Apr 20, 2023 | 1.25″ Half Dollar | 1 ground report (max 1.25″) |
| Mar 31, 2023 | 1.25″ Half Dollar | 7 ground reports (max 1.25″) |
| Apr 12, 2022 | 0.10″ Small | 1 ground report (max 0.10″) |
More Iowa hail history
Events count days with NOAA MRMS radar hail over Ames (42.030, -93.610) 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.