◆ DECATUR, IL HAIL HISTORY · MACON COUNTY
Decatur, IL hail history & hail map
Decatur, Illinois has had 2 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Jun 17, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
2Hail events in the past 5 years
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Decatur, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Decatur
| Date | Peak hail | Sources |
|---|---|---|
| Jun 17, 2026 | 1.25″ Half Dollar | Radar 1.25″ · 3 ground reports (max 1.00″) |
| Apr 1, 2024 | 2.50″ Tennis Ball | Radar 1.00″ · 6 ground reports (max 2.50″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Decatur (39.850, -88.990) 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.