Georgia

Storm History: Gwinnett County, Georgia

560 episodes, 870 events since 1956

Every storm the National Weather Service has filed in Gwinnett County, Georgia: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
870
Deaths
12
Injuries
52
Damage
$158 million
Episodes
560

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Gwinnett County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Hail29626$20 million
Tornado147322$85 million
Thunderstorm Wind12139$3.0 million
Flash Flood104210$30 million
Drought4200$1.4 million
Flood4200$12 million
Winter Storm1800$350,000
Strong Wind1300$121,000
Tropical Storm1320$3.0 million
Ice Storm1000$1.3 million
Extreme Cold/Wind Chill1000
Lightning1000$1.2 million
Heat800$10,000
Heavy Snow800$50,000
Winter Weather604
High Wind501$1.1 million
Excessive Heat400
Hurricane (Typhoon)400
Cold/Wind Chill300
Heavy Rain300
Dense Fog100
Freezing Fog100
Frost/Freeze100

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Gwinnett County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Gwinnett CountyEvery warning in Gwinnett County since 1986Every county in Georgia

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.