King George County
Population 29,646 (2025) 180 sq mi
Property owners in King George County have filed 16 federal flood insurance claims since 1978, 110th most of 133 counties in Virginia.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths since 19508
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger42
At a glance
The record for King George County in eight numbers. Each links to its section below.
Tropical cyclones within 50 mi
20
50th of 133 in Virginia
2 at hurricane strength since 1851
DetailsStrongest tornado
F2
September 5, 1979, 2.0 mile path
Strongest tropical cyclone
Cat. 1
Hurricane (unnamed), 1878, 5.9 miles away
Tornadoes
About one every 9.5 years since 1950, none rated F3/EF3 or stronger.
Strongest
September 5, 1979
F2, 2.0 mile path
40 yards wide.
Most recent
Friday, May 5, 2017
EF1, 1.2 mile path
9 years ago.
Every recorded tornado
| May 5, 2017 | EF1 | 1.2 | 0 | 0 |
| Jun 13, 2013 | EF0 | 7.1 | 0 | 0 |
| Sep 17, 2004 | F1 | 7.0 | 0 | 0 |
| Sep 8, 2004 | F1 | 17.8 | 0 | 0 |
| May 7, 2004 | F1 | 3.0 | 0 | 0 |
| Jul 10, 2003 | F0 | 0.1 | 0 | 0 |
| Jul 10, 2003 | F1 | 4.0 | 0 | 0 |
| Sep 5, 1979 | F2 | 2.0 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within King George County: 0.
- 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.
Hurricanes and tropical storms
20 passed within 50 miles since 1851; 2 at hurricane strength.
Strongest within 50 miles
October 23, 1878
Unnamed storm, Category 1
5.9 miles at closest approach, winds near 94 mph.
Most recent
July 9, 2021
Elsa, Tropical storm
50.6 miles at closest approach.
Every storm within 100 miles
| Elsa | 2021 | 50.6 | Tropical storm |
| Zeta | 2020 | 4.6 | Post-tropical |
| Isaias | 2020 | 26.4 | Tropical storm |
| Nestor | 2019 | 81.5 | Post-tropical |
| Michael | 2018 | 94.5 | Post-tropical |
| Andrea | 2013 | 70.0 | Post-tropical |
| Hanna | 2008 | 31.2 | Tropical storm |
| Ernesto | 2006 | 16.6 | Post-tropical |
| Gaston | 2004 | 69.1 | Tropical storm |
| Isabel | 2003 | 66.1 | Tropical storm |
| Floyd | 1999 | 90.6 | Tropical storm |
| Bertha | 1996 | 44.1 | Tropical storm |
| Danielle | 1992 | 74.3 | Tropical storm |
| David | 1979 | 83.2 | Tropical storm |
| Doria | 1971 | 79.4 | Tropical storm |
| Unnamed | 1963 | 40.0 | Tropical storm |
| Unnamed | 1961 | 83.9 | Tropical storm |
| Brenda | 1960 | 66.3 | Tropical storm |
| Cindy | 1959 | 90.5 | Tropical storm |
| Diane | 1955 | 51.2 | Tropical storm |
| Connie | 1955 | 33.2 | Tropical storm |
| Hazel | 1954 | 24.9 | Post-tropical |
| Able | 1952 | 42.4 | Tropical storm |
| Unnamed | 1949 | 50.7 | Tropical storm |
| Unnamed | 1945 | 1.7 | Post-tropical |
| Unnamed | 1944 | 62.5 | Post-tropical |
| Unnamed | 1944 | 8.5 | Tropical storm |
| Unnamed | 1943 | 23.9 | Tropical storm |
| Unnamed | 1935 | 94.3 | Tropical storm |
| Unnamed | 1934 | 53.0 | Post-tropical |
| Unnamed | 1933 | 0.0 | Tropical storm |
| Unnamed | 1929 | 1.7 | Post-tropical |
| Unnamed | 1928 | 12.8 | Post-tropical |
| Unnamed | 1928 | 30.4 | Post-tropical |
| Unnamed | 1924 | 77.1 | Post-tropical |
| Unnamed | 1916 | 73.7 | Post-tropical |
| Unnamed | 1915 | 31.9 | Tropical storm |
| Unnamed | 1904 | 48.3 | Tropical storm |
| Unnamed | 1902 | 23.8 | Post-tropical |
| Unnamed | 1902 | 48.1 | Post-tropical |
| Unnamed | 1899 | 3.2 | Post-tropical |
| Unnamed | 1896 | 75.2 | Tropical storm |
| Unnamed | 1893 | 43.9 | Tropical storm |
| Unnamed | 1893 | 47.2 | Category 1 |
| Unnamed | 1893 | 36.9 | Tropical storm |
| Unnamed | 1889 | 72.6 | Tropical storm |
| Unnamed | 1888 | 32.2 | Tropical storm |
| Unnamed | 1886 | 54.6 | Tropical storm |
| Unnamed | 1885 | 44.6 | Post-tropical |
| Unnamed | 1882 | 78.0 | Tropical storm |
| Unnamed | 1882 | 48.3 | Tropical storm |
| Unnamed | 1881 | 98.2 | Tropical storm |
| Unnamed | 1878 | 5.9 | Category 1 |
| Unnamed | 1877 | 41.2 | Post-tropical |
| Unnamed | 1876 | 1.7 | Tropical storm |
| Unnamed | 1874 | 49.2 | Tropical storm |
| Unnamed | 1872 | 47.8 | Tropical storm |
| Unnamed | 1863 | 69.2 | Tropical storm |
| Unnamed | 1861 | 76.4 | Tropical storm |
| Unnamed | 1859 | 54.3 | Tropical storm |
| Unnamed | 1856 | 89.5 | Tropical storm |
- 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.
Wildfire and smoke
No large wildfire has been mapped here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 53 days
Heavy smoke on 10 days in 2023, the most of any year.
Last 10 years
12.4 days a year
Medium or heavy smoke, 2016 to 2025.
2025
13 days
Medium or heavy smoke. 31 so far in 2026.
- 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.
Floods and flood insurance
16 federal flood insurance claims since 1996, with $91,000 paid.
Most claims in one year
2020: 6 claims
$2,764 paid.
Claims by ZIP code
| 22485 | 15 | $83,000 |
Flood events since 1996
- Flood18
- Flash Flood14
- Heavy Rain3
- Coastal Flood1
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
Most severe crest
October 29, 2021
Upper Machodoc Creek near Dahlgren (IN MLLW), 5.64 ft
2.14 feet above the 3.5 ft flood stage; moderate flooding by today’s categories.
Most recent moderate or major crest
October 29, 2021
Upper Machodoc Creek near Dahlgren (IN MLLW), 5.64 ft
Moderate flooding.
River gauges
| Upper Machodoc Creek near Dahlgren (IN MLLW) | 3.5 | 5.64 ft | 0 |
- 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.
Drought
In severe drought or worse for 131 of 1,581 months since 1895 (8%); the longest spell lasted 13 months.
131
Months in severe drought or worse since 1895
58
Months in extreme drought
8%
Share of all months, severe or worse
12
Drought reports to the Weather Service since 1996
Lowest reading
February 1931
−6.65, extreme drought
Longest severe spell
13 months
July 1930 to July 1931.
Latest month
September 2026
−4.24, extreme drought
- 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.
Earthquakes
3 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.8 in 2011.
0
Magnitude 2.5+ inside the county since 1973
10
Magnitude 3+ within 50 miles since 1973
3
Magnitude 4+ within 50 miles since 1900
1
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
August 23, 2011
11 km SSW of Mineral, Virginia; 40.7 miles away, 3.7 miles deep.
Most recent, magnitude 3 or more
March 25, 2012
Magnitude 3.0
13 km S of Louisa, Virginia; 43.0 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Aug 25, 2011 | 4.5 | 40.5 |
| Aug 23, 2011 | 4.2 | 41.2 |
| Aug 23, 2011 | 5.8 | 40.7 |
- 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).
- 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.
Severe weather and other events
549 events in the National Weather Service record, 536 of them since 1996.
22
Hail reports, 1 inch or larger
0
Hail, 2 inches or larger
161
Damaging gusts, 58 mph+
99
Winter weather events since 1996
78
Heat events since 1996
34
Cold events since 1996
Largest hail
May 4, 1996
1.75 inches
Strongest measured or estimated gust
July 9, 1986
81 mph
More event types since 1996
| High surf and sneaker waves | 1 | 0 |
| Storm surge and tide | 1 | 0 |
| Lightning | 2 | 0 |
| Dense fog and smoke | 37 | 0 |
| Debris flows | 1 | 0 |
Costliest events since 1996
- Sep 18, 2003Tropical Storm, King George$4.0 million
National Weather Service narrative
On September 18, 2003, Hurricane Isabel made landfall on the North Carolina Coast. Its huge wind field was already piling water up into the southern Chesapeake Bay. By the time Isabel moved into central Virginia, it had weakened and was downgraded to a tropical storm. Isabel's eye tracked well west of the bay, but the storm's 40 to 60 mph sustained winds pushed a bulge of water northward up the bay and its tributaries producing a record storm surge. The Virginia western shore counties of the Chesapeake Bay and the tidal tributaries of the Potomac, Rappahannock and other smaller rivers, experienced a storm surge which reached 5 to 9 feet above normal tides. In many locations,…
- May 7, 2004Thunderstorm Wind$500,000
National Weather Service narrative
Several dwellings were damaged from felled trees and power lines.
- Sep 17, 2004Tornado$500,000
National Weather Service narrative
An F1 tornado crossed central King George County on the 17th. The initial touch down was near the intersection of Route 3 and 607, near Popcastle. Frame homes in the Lake Jefferson Subdivision and nearby Igo Road areas were damaged by topped or felled trees. Windy Hill Farm also reported extensive damage to the barn and two other out buildings. The storm then jogged to the right and crossed Comorn Road, just south of Osso. The storm continued to produce damage as it entered the Potomac River at the end of Route 641. Trees fell on a house at the end of Route 641.
- Aug 4, 2020Tropical Storm, King George$500,000
National Weather Service narrative
The King George County 911 Center received nearly three dozen calls for trees, wires, and branches down. A tree also fell onto a house.
- Sep 6, 1996Storm Surge/Tide$250,000
- Mar 22, 1998Debris Flow, King George$150,000
National Weather Service narrative
A portion of local route 627 slid down a cliff overlooking the Rappahannock River in southeastern King George Co. At least 1/2 the width of the road was removed. The rock slide, which occurred during benign weather, was partly due to repeated heavy rains, very moist soil, and minor flooding along the river during the winter of 1997/98. Major river and flash flood events in 1996 likely set the stage, over the long term, for the slide.
- Aug 27, 2011Tropical Storm, King George$100,000
National Weather Service narrative
Numerous trees were down. Twenty trees fell into homes and 8 homes sustained major damage.
- Sep 1, 2006High Surf, King George$80,000
National Weather Service narrative
Storm surge tidal flooding occurred along the Tidal Potomac River from the remnants of Tropical Storm Ernesto, causing extensive flooding and heavy surf action in King George County. Flooding was observed at Fairview Beach. Heavy surf caused extensive beach erosion and subsequent damages to beach areas at Fairview Beach, such as to piers, docks, and bulkheads. The boardwalk was also damaged at Colonial Beach. A tide crest was measured of 5.54 ft. (NAVD88-MSL) on the Tidal Potomac at Alexandria, which was well above the flood stage of 4.0 ft.
- Jan 14, 2006High Wind, King George$75,000
National Weather Service narrative
Numerous trees and powerlines down across the county.
- Jul 4, 2008Lightning$50,000
National Weather Service narrative
King George County Emergency Management reported several lightning-sparked fires, including 2 homes and a business. One person was reportedly struck by lightning through a TV and suffered minor injuries.
- 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.
Weather records
From Quantico Mcas, 16.6 miles from the county’s population centre, with records from 1945.
- All-time high
- 106°F2 times, most recently Jul 8, 2012
- All-time low
- −6°FFeb 5, 1996
- Warmest night
- 82°FJul 6, 2012
- Coldest day
- 11°FJan 19, 1994
- Wettest day
- 5.28 inSep 30, 2010
- Snowiest day
- 17.9 inFeb 16, 2003
- Hottest year
- 2012mean 62.7°F
- Coldest year
- 1996mean 54.9°F
- Wettest year
- 194853.18 in
- Driest year
- 202116.18 in
Station Quantico Mcas (USW00013773), 10 ft elevation, 16.6 miles from the population centre. Daily records from 1945 to October 23, 2026; 87.7% 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.
Federal disaster declarations
27 since 1953. The most recent: Severe Winter Storm, January 23, 2026.
| Jan 23, 2026 | Winter Storm | EM-3631-VA |
| Mar 11, 2022 | Severe Storm | DR-4644-VA |
| Apr 2, 2020 | Biological | DR-4512-VA |
| Mar 13, 2020 | Biological | EM-3448-VA |
| Sep 11, 2018 | Hurricane | EM-3403-VA |
| Mar 7, 2016 | Snowstorm | DR-4262-VA |
| Oct 29, 2012 | Hurricane | EM-3359-VA |
| Nov 17, 2011 | Severe Storm | DR-4045-VA |
| Nov 4, 2011 | Earthquake | DR-4042-VA |
| Sep 3, 2011 | Hurricane | DR-4024-VA |
| Aug 26, 2011 | Hurricane | EM-3329-VA |
| Apr 27, 2010 | Snowstorm | DR-1905-VA |
| Feb 16, 2010 | Snowstorm | DR-1874-VA |
| Sep 22, 2006 | Severe Storm | DR-1661-VA |
| Jul 13, 2006 | Severe Storm | DR-1655-VA |
| Sep 12, 2005 | Hurricane | EM-3240-VA |
| Sep 18, 2003 | Hurricane | DR-1491-VA |
| Feb 28, 2000 | Severe Storm | DR-1318-VA |
| Sep 18, 1999 | Hurricane | DR-1293-VA |
| Sep 6, 1996 | Hurricane | DR-1135-VA |
| Jan 13, 1996 | Snowstorm | DR-1086-VA |
| Mar 10, 1994 | Snowstorm | DR-1014-VA |
| Mar 25, 1993 | Snowstorm | EM-3112-VA |
| Nov 9, 1985 | Flood | DR-755-VA |
| Jul 23, 1977 | Drought | EM-3046-VA |
| Jan 26, 1977 | Freezing | DR-525-VA |
| Jun 23, 1972 | Flood | DR-339-VA |
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.
How this compares
Where King George County stands among 133 counties in Virginia and 3,143 in the United States.
| Tornadoes since 1950 | 8 | 49 / 133 |
| Tornadoes rated F3/EF3 or stronger | 0 | — |
| Tropical cyclones within 50 mi | 20 | 50 / 133 |
| Hurricane-strength passes within 50 mi | 2 | 35 / 133 |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 16 | 110 / 133 |
| Flood insurance paid | $91,000 | 113 / 133 |
| Disaster declarations | 27 | 3 / 133 |
| Flood events since 1996 | 36 | 103 / 133 |
| Hail and wind events since 1996 | 226 | 46 / 133 |
| Winter storm events since 1996 | 99 | 40 / 133 |
| Reported damage since 1996 | $6.8 million | 79 / 133 |
| River crests at major flood stage | 0 | — |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 131 | 5 / 133 |
| Medium or heavy smoke days a year, last 10 years | 12.4 | 5 / 133 |
| Earthquakes M4+ within 50 mi since 1900 | 3 | 50 / 133 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Caroline County | 15 | 24 |
| Essex County | 3 | 24 |
| Stafford County | 18 | 16 |
| Westmoreland County | 7 | 25 |
Sources and vintage
Every number on this page comes from these public records.
- 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 USW00013773.
- 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.