◆ LAKE SUMMERSET, IL HAIL HISTORY · STEPHENSON COUNTY
Lake Summerset, IL hail history & hail map
Lake Summerset, Illinois has had 9 hail events in the past 5 years, with hail up to 2.75″ (Baseball). Most recent: Apr 17, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
9Hail events in the past 5 years
2.75″Largest recorded hail · Baseball
2.75″Largest ground report (within 3 mi)
1.25″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Lake Summerset, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Lake Summerset
| Date | Peak hail | Sources |
|---|---|---|
| Apr 17, 2026 | 2.25″ Golf Ball | Radar 1.25″ · 6 ground reports (max 2.25″) |
| Apr 14, 2026 | 0.38″ Small | 1 ground report (max 0.38″) |
| Mar 11, 2026 | 2.75″ Baseball | 3 ground reports (max 2.75″) |
| Mar 10, 2026 | 1.50″ Ping Pong Ball | 2 ground reports (max 1.50″) |
| May 7, 2024 | 0.38″ Small | 1 ground report (max 0.38″) |
| Mar 4, 2024 | 0.88″ Nickel | Radar 0.75″ · 1 ground report (max 0.88″) |
| Aug 17, 2023 | 0.75″ Penny | Radar 0.75″ |
| Jul 26, 2023 | 0.75″ Penny | Radar 0.75″ |
| May 11, 2022 | 0.88″ Nickel | Radar 0.75″ · 1 ground report (max 0.88″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Lake Summerset (42.450, -89.420) 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.