The most recent reported hail day in the U.S. was 2026-09-13, 1 day ago. NOAA's Storm Prediction Center has logged 3,641 separate hail days nationwide since 2010, across 137,996 reports of hail 1 inch or larger. 2,010 of those days brought hail 2 inches or larger, the largest being 7 inches in Clark County, ID on 2021-06-04.
Pick a storm date, see the NOAA radar swath and hail reports, and click anywhere to check the hail history at that exact spot. No signup.
Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports. Radar-indicated, not a guarantee of damage.
An approved SwathIQ account is free and unlocks the full app: door-knock address lists for every hailed address inside your markets, CSV exports, and text alerts when hail hits your territory. Access is hand-reviewed -- you'll get your invite within 24-48h.
Get free access Check an addressChoose a storm date from the menu -- it lists recent U.S. hail days, biggest first. The colored swath is NOAA's MRMS radar estimate of the largest hail in each ~1 km cell; the dots are individual SPC storm reports. Click any spot to see how many times hail has been reported there and the largest size. For a specific home, use the hail history by address lookup.
| Color | Hail size | Roof impact |
|---|---|---|
| Yellow | ~0.75″-1″ | Granule loss / bruising possible. |
| Orange | ~1″-1.5″ | Functional damage likely. |
| Red | ~1.5″-2″ | Widespread damage; strong claim territory. |
| Purple | 2″+ | Severe -- full replacements common. |
Most hail maps make you sign up or pay before you can even see where it hailed. SwathIQ shows the map free because the value for a roofing or restoration team is in the action -- the door-knock list, the route, the branded report -- which an approved (free) account unlocks for your markets. See how SwathIQ compares to HailTrace and other tools.
The busiest month nationwide is July, with 520 of the 3,641 hail days on record. March through September holds 3,085 of them, 85% of the record -- hail season somewhere in the U.S. runs 7 months, not three.
182 separate hail days have been reported so far this year.
| State | Hail days | Largest stone | Reports |
|---|---|---|---|
| Texas | 1,359 | 6.25 inches | 18,141 |
| Kansas | 1,066 | 6 inches | 11,879 |
| Nebraska | 1,045 | 5 inches | 10,029 |
| South Dakota | 851 | 6 inches | 6,531 |
| Oklahoma | 814 | 5.25 inches | 7,419 |
| Colorado | 770 | 5 inches | 6,021 |
| Missouri | 728 | 5 inches | 7,759 |
| Minnesota | 609 | 6 inches | 5,292 |
| Iowa | 587 | 4.5 inches | 5,061 |
| Illinois | 556 | 6.1 inches | 4,849 |
| North Dakota | 552 | 5 inches | 3,606 |
| Arkansas | 522 | 5 inches | 3,050 |
32 states have a hail-history hub of their own, each with a county-by-county breakdown.
Jump to a curated state hub with local hail history and county breakdowns: Texas · Kansas · Nebraska · South Dakota · Oklahoma · Colorado · Missouri · Minnesota · Iowa · Illinois · North Dakota · Arkansas · New Mexico · Wyoming · North Carolina · Georgia · Montana · Mississippi · Virginia · Wisconsin · Tennessee · Florida · Alabama · Ohio · South Carolina · Indiana · Louisiana · Kentucky · Pennsylvania · Michigan · New York · West Virginia.
Add the live SwathIQ hail map to your own roofing site with one line -- free. It updates itself as new storms come in.
Free, no key and no account: one iframe, scopeable to a single state with ?state=TX. Get alerts when hail hits with free hail alerts.
Data & method: NOAA MRMS MESH radar + NOAA/NWS SPC storm reports. Radar-indicated and observation-based -- informational only.
Our US-based call center calls the homeowners in this storm and books roof inspections straight onto your calendar. You work the storm; we fill the schedule. We dial -- you do not have to knock a single door.
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