SwathIQ / Hail map / Texas / Rockwall County

Rockwall County, Texas Hail Map & History

Rockwall County was hit as recently as 2026-05-22, 70 days ago. Rockwall County is hit in about half the years on record. The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2016-04-11 near Rockwall.

18
hail days since 2010
5
days with 2″+ hail
3
hail days this year
4.00″
largest stone on record

Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Texas. Radar-indicated, not a guarantee of damage.

Working Rockwall County? Turn a storm into a route.

The last hail here fell on 2026-05-22, around Heath. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Rockwall County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.

Get free access Check an address
Found a storm? Let Call Center Doctors dial it.

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.

See call-center options ->

How often it hails in Rockwall County

NOAA's Storm Prediction Center has logged 18 separate hail days here since 2010 -- 1.1 a year over 17 years of record. Those days carry 43 separate reports between them, two or three on a typical one. 7 of those 17 years produced none at all. One year dominates the record: 2012 alone produced 4 of the 18 days. The last five years have run hotter than the long-run rate: 8 days since 2022, against 0.8 a year before that.

Roof-killing hail is routine here: 5 of the 18 days reached 2 inches or more, 28% of them, the last on 2026-04-27. They land in the same month as everything else, April. 6 of the 18 days reached golf-ball size, 1.75 inches or bigger.

Across the whole of Texas, see the Texas hail map and history.

Hardest-hit places in Rockwall County

Reports cluster nearest Rockwall -- 11 of the county's 18 hail days -- then Fate (6), Royse City (4), Heath (3) and Mclendon-Chisholm (3). That one town is named on 61% of them.

PlaceHail days since 2010Largest stone
Rockwall64.00″
Royse City42.75″
Heath32.75″
Fate31.50″
Mclendon-Chisholm22.50″

When it hails in Rockwall County

The season runs March through July: 15 of the 18 hail days on record fall in those 5 months (83%). April is the single busiest month, with 7 of them (39%). That peak sits inside the window rather than at either end. Hail has also been reported in October, November and December, outside that window. Reports span 8 of the 12 calendar months; the other 4 have never produced one.

MonthHail days
March2
April7
May2
June3
July1
October1
November1
December1

Recent Rockwall County hail days

That day put 1 report on the map, the biggest 1 inch near Heath. 3 hail days have already been reported this year.

DateMax hailReports
2026-05-221.00″1
2026-04-272.00″7
2026-03-041.00″1
2023-06-131.00″1
2023-06-112.75″8
2023-04-201.50″3
2022-12-132.50″3
2022-03-141.00″1

How to read the Rockwall County map

The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 4 inches, which is the purple band. Look up a street address with the hail history by address tool.

Nearby counties

The nearest counties with a page of their own: Collin County (74 hail days), Kaufman County (33) and Dallas County (88). Every one of them takes more hail than Rockwall County.

Collin County · Kaufman County · Dallas County

Back to the Texas hail map or the U.S. hail map.

FAQ

How often does it hail in Rockwall County, Texas?
NOAA's Storm Prediction Center has logged 18 separate hail days here since 2010 -- 1.1 a year over 17 years of record.
When is hail season in Rockwall County?
The season runs March through July: 15 of the 18 hail days on record fall in those 5 months (83%).
How big does hail get in Rockwall County?
The largest stone on record here is 4 inches, a grapefruit and 4 times the National Weather Service's 1 inch severe criterion, reported on 2016-04-11 near Rockwall.
When was the last hail in Rockwall County?
Rockwall County was hit as recently as 2026-05-22, 70 days ago.
Is the Rockwall County hail map free?
Yes, no login. A free account adds door-knock address lists and CRM exports.

Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Rockwall County, Texas only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.