NOAA weather radar detected hail over 43 of the 1000 US cities we track on this date, across 8 states (AL, CO, FL, IL, IN, MI, TN, WI) — 218 radar detections in total. The most active was Arlington Heights, IL with 17.
Check a specific address for this date →These dates are GMT, not local. GMT runs 5–8 hours ahead of the US, so a storm that hit at 8:30 PM local on one evening is recorded here under the following date. Evening storms are the norm across the Plains and the Southeast. If you are writing a date of loss on a claim form, check the local time — being one day off is a real reason a carrier can push back.
| City | Radar detections |
|---|---|
| Arlington Heights, IL | 17 |
| Palatine, IL | 17 |
| Fond du Lac, WI | 14 |
| Parker, CO | 12 |
| Colorado Springs, CO | 10 |
| Champaign, IL | 9 |
| Muskegon, MI | 9 |
| Urbana, IL | 9 |
| DeKalb, IL | 8 |
| Denver, CO | 8 |
| Lakewood, CO | 8 |
| Birmingham, AL | 7 |
| Oshkosh, WI | 7 |
| Aurora, CO | 6 |
| Calumet City, IL | 6 |
| Hammond, IN | 6 |
| New Berlin, WI | 5 |
| Buffalo Grove, IL | 4 |
| Evanston, IL | 4 |
| Littleton, CO | 4 |
| Sheboygan, WI | 4 |
| Skokie, IL | 4 |
| Cicero, IL | 3 |
| Des Plaines, IL | 3 |
| Hoffman Estates, IL | 3 |
| Hoover, AL | 3 |
| Jackson, TN | 3 |
| Janesville, WI | 3 |
| Arvada, CO | 2 |
| Glenview, IL | 2 |
| Mount Prospect, IL | 2 |
| Orland Park, IL | 2 |
| Terre Haute, IN | 2 |
| Waukesha, WI | 2 |
| Wheeling, IL | 2 |
| Addison, IL | 1 |
| Elmhurst, IL | 1 |
| Gary, IN | 1 |
| Grand Rapids, MI | 1 |
| Joliet, IL | 1 |
| Lombard, IL | 1 |
| Ocoee, FL | 1 |
| Park Ridge, IL | 1 |
These are city-centre tiles. To see whether radar registered hail over your street on July 31, 2012 — and every other date going back to 1992 — run the free address lookup. No signup, no account, and you can download the result as a CSV.
Look up your address →What a detection means. Counts describe a 0.1° grid tile — roughly 7 miles north to south — containing the city, not a specific address. A detection inside the tile does not prove hail fell on any particular roof, and no detection does not prove none fell. This is a screening tool, not an insurance claim, a loss report, or an engineering inspection.
NOAA NCEI Severe Weather Data Inventory,
dataset nx3hail — NEXRAD Level-III Hail Detection Algorithm output. Public-domain US
government data.
All storm dates · All cities · Hail history by address
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