Rockdale County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Rockdale 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. Mar 15, 2008Hail$5.0 million
   National Weather Service narrative

   Amateur radio operators relayed reports of golf ball to baseball-sized hail across the northern half of Rockdale county. The baseball-sized hail was observed about three miles north of Conyers at the J. H. Elementary school and at several other locations across the northern portion of the county.

2. Sep 21, 2009Flood$2.0 million
   National Weather Service narrative

   Rockdale county emergency management personnel and USGS stream gages confirmed that major to record flooding continued across much of the county. Hundreds of homes, apartments, businesses, and roads sustained damages from flooding. Flood damages peaked across the county during this time frame as many culverts and/or bridges were washed out and several roads were closed. Flood waters began to recede after 230 pm EDT on the 22nd, but many locations remained flooded through 715 am EDT on the 23rd. Monetary damage exceeded $2 million during this time frame.

3. Jun 12, 2007Hail$1.6 million
   National Weather Service narrative

   Numerous reports of large hail, ranging in size from pennies to golf balls, were received from the public across Rockdale county from Conyers to the southern part of the county near the Henry county line. Golf ball-sized hail was reported in the city of Conyers.

4. Mar 15, 2008Hail$1.0 million
   National Weather Service narrative

   The public observed golf ball-sized hail in southern Rockdale county near Magnet.

5. Sep 21, 2009Flood$990,000
   National Weather Service narrative

   The Rockdale County Emergency Management Director reported that two subdivisions approximately five miles north of Conyers were evacuated as they were threatened from flood waters of adjacent creeks, streams, and rivers. A third subdivision was put on alert for possible evacuation as well. At least 18 roads across the county were closed. The majority of the closed roads were in the northern portion of the county. Monetary damage to roads and property was estimated to be nearly $1 million.

6. Jan 22, 2000Ice Storm, Rockdale$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…

7. Feb 21, 2005Hail$550,000
   National Weather Service narrative

   The public reported golf ball-sized hail.

8. Mar 31, 2005Lightning$500,000
   National Weather Service narrative

   The Macon Telegraph reported that lightning struck and set on fire a historic monestary. The building was built by Trappist Monks more than six decades ago. Three of the building's wings were completely destroyed by the ensuing fire and the fourth was damaged beyond repair. One firefighter suffered injuries while fighting the blaze.

9. Sep 16, 2004High Wind, Rockdale$350,000
   National Weather Service narrative

   High wind damage, associated with Tropical Storm Ivan, is listed below, in alphabetical order by county for those counties that "high wind" criteria was either met or assumed to be met.Banks: The Banks County News of Homer reported widespread damage to trees and power lines throughout the county. More than 73 trees were uprooted or blown down, and many roads were blocked by downed trees and power lines. One home and an unoccupied camper were damaged when trees fell on them and a power line fell on a vehicle while traveling on a county highway. (Estimated Damage: $250,000)Barrow: The Barrow County News and the Gwinnett Daily Post both reported widespread damage to trees and power…

10. Jan 5, 2007Thunderstorm Wind$350,000
    National Weather Service narrative

    The Rockdale Citizen of Conyers reported that extensive damage occurred to the Rockdale County Highschool and nearby areas. The roof of the press box was shattered and windows were broken in the stadium from high winds. The fence around the baseball field was crushed from a number of downed trees. Several cars in the parking lot were also damaged from trees blown down from thunderstorm winds. Another car was damaged from a downed tree down the street at the C. J. Hicks Elementary school. A number of trees were reported down throughout the county. The Rockdale County 911 Center reported that some of the worst damage was in the Deer Run Lake subdivision in the far south end of the…

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, 24.3 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.