Cook County, IL hail map
Every NOAA hail report in Cook County, Illinois from the last 12 months — 28 reports, largest 2.0". Updated daily from Storm Prediction Center data.
Recent hail reports in Cook County
| Date | Hail size | Coordinates |
|---|---|---|
| Apr 15 | 1.0" | 42.000, -88.110 |
| Apr 15 | 1.0" | 42.090, -87.930 |
| Mar 31 | 1.0" | 41.850, -87.750 |
| Mar 31 | 1.0" | 41.820, -87.780 |
| Mar 31 | 1.0" | 41.800, -87.720 |
| Mar 31 | 1.0" | 41.850, -87.890 |
| Mar 31 | 2.0" | 41.840, -87.790 |
| Mar 31 | 1.25" | 41.810, -87.840 |
| Mar 31 | 1.0" | 41.810, -87.850 |
| Mar 31 | 1.0" | 41.830, -87.870 |
| Mar 31 | 1.0" | 41.830, -87.870 |
| Mar 27 | 1.0" | 41.620, -87.840 |
| Mar 26 | 1.0" | 41.640, -87.740 |
| Mar 26 | 1.0" | 41.660, -87.880 |
| Mar 10 | 1.0" | 41.880, -87.660 |
Showing the 15 most recent of 28 reports in the last 12 months.
Roofing in Cook County? Don't knock blind.
The map shows where hail fell. Roofbird shows which specific roofs took damage: AI reads every home in a hit ZIP code from satellite and ground-level Street View into one buy-probability score, ranked worst-first — with the owner's DNC-scrubbed contacts and the full property record on unlock. 25 free leads, no card.
Storm alerts · free
Know the morning hail hits your territory.
One email the morning after hail 1″+ lands in your state — which counties, max stone size, and the scan when we've run one. No spam, unsubscribe anytime.
Hail activity in other Illinois counties
Cook County hail FAQ
When did it last hail in Cook County, IL?
The most recent NOAA hail report in Cook County was on Apr 15 with 1.0" hail. Every report from the last 12 months is listed above.
How much hail does Cook County get?
Cook County recorded 28 official NOAA hail reports in the last 12 months. The largest stone was 2.0".
Was the hail in Cook County big enough to damage roofs?
One-inch hail (quarter size) is the standard damage threshold for asphalt shingles, and Cook County has seen hail up to 2.0" in the last 12 months — large enough to bruise shingles and cause granule loss that surfaces as leaks months later.
How do roofing contractors use this hail data?
After a hail event, contractors canvass the hit area — but knocking blind wastes crew hours. Roofbird reads every roof in a hit ZIP code from satellite and ground-level Street View into one AI buy-probability score and returns a ranked list of the homes most likely needing replacement, with the owner's DNC-scrubbed phones and emails, mailing address, and the full property record on unlock.