◆ CALMAR, IA HAIL HISTORY · WINNESHIEK COUNTY
Calmar, IA hail history & hail map
Calmar, Iowa has had 1 hail event in the past 5 years, with hail up to 1.00″ (Quarter). Most recent: Aug 16, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
1Hail events in the past 5 years
1.00″Largest recorded hail · Quarter
1.00″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Calmar, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Calmar
| Date | Peak hail | Sources |
|---|---|---|
| Aug 16, 2025 | 1.00″ Quarter | Radar 1.00″ · 1 ground report (max 1.00″) |
More Iowa hail history
Events count days with NOAA MRMS radar hail over Calmar (43.180, -91.860) 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.