SwathIQ / Hail map / Georgia / Gwinnett County

Gwinnett County, Georgia Hail Map & History

Gwinnett County was hit as recently as 2026-07-04, 27 days ago. Gwinnett County is hit in most years. The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2011-04-15 near Lawrenceville.

26
hail days since 2010
2
days with 2″+ hail
1
hail days this year
2.75″
largest stone on record

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

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The last hail here fell on 2026-07-04, around Dacula. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Gwinnett County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.

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How often it hails in Gwinnett County

NOAA's Storm Prediction Center has logged 26 separate hail days here since 2010 -- 1.5 a year over 17 years of record. They carry 42 reports in total: most hail days here are logged from a single spot. 3 of those 17 years produced none at all. The busiest single year was 2020, with 3 hail days. The last five years track the long-run rate, with 6 days since 2022.

Most hail here stays under 2 inches: only 2 of the 26 days on record passed it, 8%, the last on 2018-07-21. They land in the same month as everything else, April. Golf-ball size is rarer still: 1.75 inches or more on 4 of the 26 days.

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

Hardest-hit places in Gwinnett County

Reports cluster nearest Hog Mountain -- 5 of the county's 26 hail days -- then Lawrenceville (4), Dacula (4), Duluth (4) and Norcross (3). Beyond those, NOAA names Sugar Hill on more than one hail day apiece.

PlaceHail days since 2010Largest stone
Lawrenceville32.75″
Duluth31.75″
2 Wsw Dacula22.50″
Dacula21.75″
Hog Mountain21.00″

When it hails in Gwinnett County

The season runs April through July: 21 of the 26 hail days on record fall in those 4 months (81%). April is the single busiest month, with 8 of them (31%). That peak opens the window: the season starts at its worst and eases off from there. Hail has also been reported in March, August and September, outside that window. Reports span 7 of the 12 calendar months; the other 5 have never produced one.

MonthHail days
March3
April8
May1
June5
July7
August1
September1

Recent Gwinnett County hail days

That day put 2 reports on the map, the biggest 1 inch near Dacula. 1 hail day has already been reported this year.

DateMax hailReports
2026-07-041.00″2
2025-06-261.00″1
2025-04-101.00″2
2023-06-111.00″1
2023-03-261.50″1
2022-06-171.00″1
2021-04-241.00″1
2020-07-251.25″2

How to read the Gwinnett 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 2.75 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: Forsyth County (16 hail days), Fulton County (32) and Hall County (15). Gwinnett County sits in between.

Forsyth County · Fulton County · Hall County

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

FAQ

How often does it hail in Gwinnett County, Georgia?
NOAA's Storm Prediction Center has logged 26 separate hail days here since 2010 -- 1.5 a year over 17 years of record.
When is hail season in Gwinnett County?
The season runs April through July: 21 of the 26 hail days on record fall in those 4 months (81%).
How big does hail get in Gwinnett County?
The largest stone on record here is 2.75 inches, a baseball and 2.8 times the National Weather Service's 1 inch severe criterion, reported on 2011-04-15 near Lawrenceville.
When was the last hail in Gwinnett County?
Gwinnett County was hit as recently as 2026-07-04, 27 days ago.
Is the Gwinnett 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, Gwinnett County, Georgia only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.