◆ HARMON, OK HAIL HISTORY · ELLIS COUNTY
Harmon, OK hail history & hail map
Harmon, Oklahoma has had 6 hail events in the past 5 years, with hail up to 4.00″ (Softball). Most recent: May 18, 2025. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
6Hail events in the past 5 years
4.00″Largest recorded hail · Softball
4.00″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Harmon, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Harmon
| Date | Peak hail | Sources |
|---|---|---|
| May 18, 2025 | 4.00″ Softball | Radar 1.25″ · 3 ground reports (max 4.00″) |
| Aug 16, 2024 | 0.75″ Penny | Radar 0.75″ |
| Jun 7, 2024 | 0.75″ Penny | Radar 0.75″ |
| Aug 11, 2023 | 0.75″ Penny | Radar 0.75″ |
| Sep 17, 2022 | 0.75″ Penny | Radar 0.75″ |
| Jun 1, 2022 | 1.00″ Quarter | Radar 1.00″ |
More Oklahoma hail history
All Oklahoma cities & hail days →
Events count days with NOAA MRMS radar hail over Harmon (36.168, -99.613) 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.