◆ (1C5) BOLINGBROOK CLOW AIRPORT, IL HAIL HISTORY · WILL COUNTY
(1c5) Bolingbrook Clow Airport, IL hail history & hail map
(1c5) Bolingbrook Clow Airport, Illinois has had 9 hail events in the past 5 years, with hail up to 2.50″ (Tennis Ball). Most recent: Mar 31, 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
2.50″Largest recorded hail · Tennis Ball
2.50″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over (1c5) Bolingbrook Clow Airport, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in (1c5) Bolingbrook Clow Airport
| Date | Peak hail | Sources |
|---|---|---|
| Mar 31, 2026 | 1.25″ Half Dollar | Radar 0.75″ · 1 ground report (max 1.25″) |
| Mar 27, 2026 | 1.00″ Quarter | 1 ground report (max 1.00″) |
| Mar 10, 2026 | 2.50″ Tennis Ball | 4 ground reports (max 2.50″) |
| Aug 16, 2025 | 0.62″ Small | 1 ground report (max 0.62″) |
| Aug 28, 2024 | 0.75″ Penny | Radar 0.75″ |
| Feb 28, 2024 | 1.00″ Quarter | Radar 1.00″ · 1 ground report (max 1.00″) |
| Feb 27, 2024 | 0.75″ Penny | 1 ground report (max 0.75″) |
| Apr 4, 2023 | 0.50″ Small | 1 ground report (max 0.50″) |
| Jul 23, 2022 | 1.00″ Quarter | 2 ground reports (max 1.00″) |
More Illinois hail history
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Events count days with NOAA MRMS radar hail over (1c5) Bolingbrook Clow Airport (41.681, -88.158) 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.