◆ RIVERTON, IL HAIL HISTORY · SANGAMON COUNTY
Riverton, IL hail history & hail map
Riverton, Illinois has had 10 hail events in the past 5 years, with hail up to 1.50″ (Ping Pong Ball). Most recent: Jul 19, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
10Hail events in the past 5 years
1.50″Largest recorded hail · Ping Pong Ball
1.50″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Riverton, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Riverton
| Date | Peak hail | Sources |
|---|---|---|
| Jul 19, 2026 | 0.50″ Small | 1 ground report (max 0.50″) |
| Jun 17, 2026 | 1.25″ Half Dollar | Radar 1.25″ |
| Apr 27, 2026 | 0.10″ Small | 1 ground report (max 0.10″) |
| Mar 15, 2026 | 0.25″ Small | 1 ground report (max 0.25″) |
| Mar 3, 2026 | 0.10″ Small | 1 ground report (max 0.10″) |
| Jun 8, 2025 | 0.38″ Small | 1 ground report (max 0.38″) |
| May 16, 2025 | 1.50″ Ping Pong Ball | 2 ground reports (max 1.50″) |
| Apr 2, 2025 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
| Aug 25, 2023 | 0.10″ Small | 1 ground report (max 0.10″) |
| Aug 2, 2022 | 0.75″ Penny | Radar 0.75″ |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Riverton (39.850, -89.530) 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.