Henry County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Henry County: 0.
2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Every storm within 100 miles

1. Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.

National Hurricane Center HURDAT2, 1851 to 2025.

Smoke overhead

1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Claims by ZIP code

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

River crests

River gauges

1. Crests are the highest and the recent crests the National Weather Service lists for each river gauge in the county that has a flood stage, not every flood. Flood categories use each gauge's current flood stages; crests from before levees, dams or channel changes may not be comparable. Crests measured on an old datum are left out of the rankings.

NOAA National Water Prediction Service gauge records, retrieved October 30, 2026.

1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Every earthquake of magnitude 4 or more within 50 miles

1. Earthquakes of magnitude 2.5 or more in the USGS Comprehensive Catalog since 1900. Within 50 miles means the epicentre lies within 50 miles of the county boundary (or inside the county).
2. Small earthquakes were under-recorded before the modern seismic networks of the 1970s and are still missed in remote areas, so early decades read low. Magnitudes are as the catalogue reports them and mix scales (moment, local and body-wave).

USGS ANSS Comprehensive Earthquake Catalog, 1900 to present, retrieved October 30, 2026.

More event types since 1996

Costliest events since 1996

1. Jul 6, 2005Tornado$70.0 million
   National Weather Service narrative

   A National Weather Service damage survey confirmed an F2 tornado, the strongest tornado of the evening associated with the remnants of Tropical Storm Cindy, touched down just a few hundred yards south of McDonough Street at the Atlanta Motor Speedway then traveled north-northwest passing just east of Lovejoy in Clayton county, then across the Edgar Blalock Raw Water Reservation, at which point it turned northwest and finally passed into Clayton county before lifting near Jodeco Road. The tornado center line crossed the western bank of the race track then across Tara Field just west of the race track. Damages to the Atlanta Motor Speedway, including several condominiums at the…

2. Mar 18, 2013Hail$9.4 million
   National Weather Service narrative

   The Henry County Emergency Manager, current and former National Weather Service Employees, and the public reported quarter to baseball sized hail in the second of two significant hailstorms across Henry County.

3. Mar 18, 2013Hail$9.4 million
   National Weather Service narrative

   Ham radio operators, spotters, and current and former National Weather Service employees reported golfball to baseball sized hail in Henry County in the first of two significant hailstorms to move through during the 6 PM hour.

4. Mar 18, 2013Hail$2.4 million
   National Weather Service narrative

   The public reported golfball size hail in McDonough.

5. Apr 4, 2011Hail$2.3 million
   National Weather Service narrative

   The public observed golf ball-sized hail near Hampton. WSR-88D radar data suggests that golf ball-sized hail was more likely observed near Luella and Locust Grove, with quarter-sized hail near Hampton.

6. Jun 12, 2007Hail$1.5 million
   National Weather Service narrative

   Nearly two dozen reports of large hail were received from the public across Henry county. Quarter-sized hail reports were common from the McDonough and Stockbridge areas and other areas in the northern part of the county. Quarter to golf ball-sized hail fell in Locust Grove and McDonough. In McDonough, along Georgia Highway 155, hail covered the ground over one inch deep and a chain link fence was said to have been dented and damaged from the large hail.

7. May 20, 2008Hail$1.5 million
   National Weather Service narrative

   The public observed quarter to golf ball-sized hail in the McDonough area. Radar supported that hail of at least quarter-size fell across much of central and east central Henry county.

8. Feb 18, 2009Hail$1.4 million
   National Weather Service narrative

   Several reports of large hail were received from the Henry County Emergency Management Director and the public in a swath across southern Henry county extending from just northwest of Hampton to southeast of Ola. Hail was reported to be the size of quarters near Hampton and quarters to golf balls from southwest of McDonough to southeast of Ola. Nickel sized-hail was reported when the storm first entered the northwest part of the county near Interstate-75 and Jodoco Road.

9. Mar 28, 2009Hail$1.0 million
   National Weather Service narrative

   Several reports of large hail were received from the public across southeast Henry county. This was one of two severe thunderstorms to track across the county in the 400 pm to 430 pm EDT time frame. Penny to golf ball-sized hail was reported near Locust Grove with quarter-sized hail near Ola as the storm moved further northeast.

10. Jan 22, 2000Ice Storm, Henry$980,000
    National Weather Service narrative

    Wintry precipitation plagued the northern third of Georgia beginning Saturday and continued into Sunday. A shallow cold airmass with single-digit dewpoint temperatures was in place over north Georgia, with temperatures in the upper 20s to lower 30s over much of the area. An upper level disturbance moved rapidly over the area in a fast zonal flow, bringing an increase in mid-tropospheric moisture. At the same time, lower level moisture spread into the area from the Gulf of Mexico. Precipitation began falling into the colder layer of air near the surface by mid-morning on the 22nd. The mixture of light rain, snow and sleet had spread from northwest to northeast Georgia by early…

1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

All-time high

106°FJun 30, 2012

All-time low

−8°FJan 21, 1985

Warmest night

82°FAug 8, 2007

Coldest day

15°F2 times, most recently Jan 30, 1966

Wettest day

6.68 inOct 4, 1995

Snowiest day

8.3 inJan 23, 1940

Hottest year

2019mean 66.2°F

Coldest year

1976mean 59.1°F

Wettest year

194871.45 in

Driest year

195431.80 in

Snowiest season

10.9 in1935-36

Station Atlanta Hartsfield-jackson Int (USW00013874), 1,011 ft elevation, 18.9 miles from the population centre. Daily records from 1930 to October 26, 2026; 100.0% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

Neighbouring counties

• Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
• Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
• Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
• Storm events NOAA NCEI Storm Events Database, through 2026.
• Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
• Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
• Weather records NOAA NCEI Global Historical Climatology Network Daily, station USW00013874.
• River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
• Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
• Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
• Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.