◆ ROCHESTER, IA HAIL HISTORY · CEDAR COUNTY
Rochester, IA hail history & hail map
Rochester, Iowa has had 5 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Mar 11, 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
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
2.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Rochester, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Rochester
| Date | Peak hail | Sources |
|---|---|---|
| Mar 11, 2026 | 1.50″ Ping Pong Ball | Radar 1.50″ · 1 ground report (max 1.50″) |
| Mar 19, 2025 | 0.70″ Small | 1 ground report (max 0.70″) |
| May 21, 2024 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
| May 7, 2023 | 1.00″ Quarter | Radar 1.00″ |
| Sep 19, 2022 | 2.50″ Tennis Ball | Radar 2.00″ · 2 ground reports (max 2.50″) |
More Iowa hail history
Events count days with NOAA MRMS radar hail over Rochester (41.670, -91.160) 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.