London
Population 10,813 (2025)
88 tornadoes have tracked within 25 miles of London since 1950, 3 of them rated EF3 or F3 or stronger; the most recent was on July 19, 2025.
Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed
- Tornado damage paths within 25 miles since 195088
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger1
At a glance
Tornado paths within 25 miles, tropical cyclone tracks within 100 miles and wildfire perimeters within 25 miles of the city centre. Storm events, flood insurance claims and disaster declarations are for Madison County. Earthquakes within 50 miles, volcanoes within 100 miles and smoke days are measured from the city centre; river and tide gauges, tsunami and landslide records and the drought index are for Madison County.
Strongest tornado
F5
April 3, 1974, 31.3 mile path
Snowiest season
56.4in
Winter of 2013-14
Tornadoes
About one tornado a year since 1950, 3 of them rated F3/EF3 or stronger.
Strongest
April 3, 1974
F5, 31.3 mile path
533 yards wide; 36 killed along the whole path.
Most recent
Saturday, July 19, 2025
EF1, 2.8 mile path
Within the past year.
Every recorded tornado
| Jul 19, 2025 | EF1 | 2.8 | 0 | 0 |
| Mar 30, 2025 | EF0 | 2.6 | 0 | 0 |
| Mar 30, 2025 | EF1 | 3.9 | 0 | 0 |
| Dec 29, 2024 | EF0 | 0.3 | 0 | 0 |
| Apr 17, 2024 | EF0 | 3.0 | 0 | 0 |
| Feb 28, 2024 | EF0 | 2.2 | 0 | 0 |
| Feb 28, 2024 | EF0 | 0.5 | 0 | 0 |
| Feb 28, 2024 | EF1 | 3.8 | 0 | 0 |
| Feb 28, 2024 | EF1 | 12.3 | 0 | 0 |
| Feb 28, 2024 | EF2 | 21.1 | 3 | 0 |
| Sep 28, 2023 | EF0 | 0.0 | 0 | 0 |
| Feb 27, 2023 | EF0 | 1.4 | 0 | 0 |
| Jun 8, 2022 | EF0 | 5.7 | 0 | 0 |
| Jun 8, 2022 | EF1 | 16.9 | 0 | 0 |
| Jul 29, 2021 | EF0 | 0.9 | 0 | 0 |
| May 18, 2020 | EF0 | 1.9 | 0 | 0 |
| May 27, 2019 | EF0 | 4.2 | 0 | 0 |
| May 27, 2019 | EF1 | 5.8 | 0 | 0 |
| Apr 14, 2019 | EF0 | 2.7 | 0 | 0 |
| Apr 12, 2019 | EFU | 1.0 | 0 | 0 |
| Apr 12, 2019 | EF0 | 0.8 | 0 | 0 |
| Feb 7, 2019 | EF0 | 7.5 | 0 | 0 |
| Apr 3, 2018 | EF1 | 2.6 | 0 | 0 |
| Apr 3, 2018 | EF0 | 0.2 | 0 | 0 |
| Apr 3, 2018 | EF1 | 4.3 | 0 | 0 |
| Apr 3, 2018 | EF1 | 8.8 | 0 | 0 |
| Nov 5, 2017 | EF1 | 6.6 | 0 | 0 |
| May 24, 2017 | EF0 | 2.2 | 0 | 0 |
| May 24, 2017 | EF0 | 0.7 | 0 | 0 |
| Jun 23, 2016 | EF1 | 3.8 | 0 | 0 |
| Jul 27, 2014 | EF0 | 0.1 | 0 | 0 |
| May 14, 2014 | EF3 | 8.9 | 0 | 0 |
| Oct 31, 2013 | EF0 | 0.3 | 0 | 0 |
| May 25, 2011 | EF0 | 1.0 | 0 | 0 |
| May 25, 2011 | EF0 | 0.5 | 0 | 0 |
| May 23, 2011 | EF1 | 0.4 | 0 | 0 |
| Oct 26, 2010 | EF0 | 2.2 | 0 | 0 |
| Oct 26, 2010 | EF0 | 5.5 | 0 | 0 |
| Jun 6, 2010 | EF0 | 3.4 | 0 | 0 |
| May 11, 2008 | EF0 | 1.8 | 0 | 0 |
| May 8, 2008 | EF0 | 0.2 | 0 | 0 |
| May 8, 2008 | EF0 | 0.1 | 0 | 0 |
| May 15, 2007 | EF0 | 0.1 | 0 | 0 |
| Oct 11, 2006 | F2 | 0.5 | 0 | 0 |
| Aug 28, 2006 | F0 | 0.1 | 0 | 0 |
| Jul 11, 2006 | F0 | 1.0 | 0 | 0 |
| Oct 13, 1999 | F0 | 0.1 | 0 | 0 |
| Apr 9, 1999 | F1 | 0.5 | 0 | 0 |
| Jul 2, 1997 | F0 | 0.2 | 0 | 0 |
| Jul 18, 1993 | F1 | 2.0 | 0 | 0 |
| Jun 30, 1993 | F1 | 0.2 | 0 | 0 |
| Aug 27, 1992 | F0 | 1.0 | 0 | 0 |
| Jul 12, 1989 | F0 | 0.2 | 0 | 0 |
| Apr 25, 1989 | F2 | 5.0 | 16 | 0 |
| Jun 10, 1986 | F1 | 15.0 | 0 | 0 |
| Apr 20, 1986 | F1 | 3.5 | 6 | 0 |
| Mar 10, 1986 | F2 | 28.0 | 10 | 1 |
| May 31, 1985 | F1 | 0.5 | 0 | 0 |
| Aug 7, 1984 | F1 | 1.0 | 0 | 0 |
| May 2, 1983 | F1 | 11.0 | 0 | 0 |
| Apr 3, 1982 | F1 | 3.0 | 1 | 0 |
| Jun 21, 1981 | F1 | 1.9 | 3 | 0 |
| Apr 19, 1978 | F1 | 9.5 | 0 | 0 |
| Sep 11, 1975 | F1 | 0.2 | 0 | 0 |
| Apr 3, 1974 | F2 | 15.7 | 0 | 0 |
| Apr 3, 1974 | F5 | 31.3 | 1,150 | 36 |
| Jun 19, 1973 | F0 | 0.3 | 1 | 0 |
| May 30, 1973 | F2 | 2.0 | 1 | 0 |
| May 25, 1973 | F2 | 0.1 | 0 | 0 |
| May 10, 1973 | F3 | 89.6 | 8 | 0 |
| May 8, 1973 | F2 | 17.3 | 0 | 0 |
| Feb 22, 1971 | F2 | 2.0 | 0 | 0 |
| May 26, 1968 | F1 | 0.2 | 0 | 0 |
| Jul 10, 1966 | F1 | 2.0 | 0 | 0 |
| Nov 16, 1965 | F1 | 0.1 | 0 | 0 |
| Nov 16, 1965 | F2 | 0.2 | 4 | 0 |
| Apr 11, 1965 | F1 | 38.4 | 13 | 0 |
| Apr 11, 1965 | F1 | 0.1 | 0 | 0 |
| Mar 17, 1965 | F1 | 5.2 | 0 | 0 |
| Mar 8, 1964 | F1 | 0.1 | 0 | 0 |
| Jun 5, 1963 | F2 | 0.1 | 0 | 0 |
| Apr 19, 1963 | F2 | 0.1 | 0 | 0 |
| Jul 28, 1961 | F0 | 1.0 | 0 | 0 |
| Jul 5, 1959 | F1 | 0.1 | 0 | 0 |
| Jun 13, 1958 | F2 | 5.1 | 0 | 0 |
| Apr 28, 1958 | F1 | 0.1 | 0 | 0 |
| Feb 25, 1956 | F2 | 0.3 | 0 | 0 |
| Oct 11, 1954 | F1 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
- 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
1 tropical cyclone passed within 100 miles since 1851, none within 50.
Most recent
October 5, 1995
Opal, Post-tropical
39.4 miles at closest approach.
Every storm within 100 miles
- 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 within 25 miles since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 55 days
Heavy smoke on 15 days in 2023, the most of any year.
Last 10 years
16.6 days a year
Medium or heavy smoke, 2016 to 2025.
2025
13 days
Medium or heavy smoke. 39 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
22 federal flood insurance claims since 1979, with $149,000 paid.
Flood insurance figures are for Madison County, the county that contains London.
Most claims in one year
1997: 6 claims
$30,000 paid.
2nd most
1979: 5 claims
$21,000 paid.
Claims by ZIP code
| 43140 | 14 | $118,000 |
| 43064 | 6 | $27,000 |
Flood events since 1996
- Flood28
- Flash Flood10
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.
Drought
In severe drought or worse for 123 of 1,581 months since 1895 (8%); the longest spell lasted 16 months.
The drought index is for Madison County, the county that contains London.
123
Months in severe drought or worse since 1895
57
Months in extreme drought
8%
Share of all months, severe or worse
2
Drought reports to the Weather Service since 1996
Lowest reading
March 1931
−6.87, extreme drought
Longest severe spell
16 months
January 1934 to April 1935.
Latest month
September 2026
+3.22, very wet
Last severe month: January 2025.
- 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
1 earthquake of magnitude 2.5 or more within 50 miles since 2026; none reached magnitude 4.
0
Magnitude 3+ within 50 miles since 1973
0
Magnitude 4+ within 50 miles since 1900
0
Magnitude 5+ within 50 miles since 1900
Largest within 50 miles
February 22, 2026
Magnitude 2.5
2 km NE of Hillsboro, Ohio; 47.1 miles away, 7.0 miles deep.
- 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 city centre.
- 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
435 events in the National Weather Service record for Madison County, 358 of them since 1996.
31
Hail reports, 1 inch or larger
0
Hail, 2 inches or larger
127
Damaging gusts, 58 mph+
109
Winter weather events since 1996
5
Heat events since 1996
4
Cold events since 1996
Largest hail
May 22, 1982
1.75 inches
Strongest measured or estimated gust
July 12, 1980
79 mph
More event types since 1996
| Lightning | 1 | 0 |
| Dense fog and smoke | 1 | 0 |
Costliest events since 1996
- Sep 14, 2008High Wind, Madison$4.9 million
National Weather Service narrative
Strong winds of 40 to 50 miles per hour were sustained for several hours. Gusts over 60 mph were common. Widespread damage occurred across the region, from trees being blown down on powerlines, to significant crop losses and structural damage.
- Feb 28, 2024Tornado$1.0 million
National Weather Service narrative
The tornado first touched down in Clark County at 0452EST, 5 miles south-southeast of Springfield. It moved east-northeast and crossed into Madison County at 0506EST, 2.3 miles west-southwest of Summerford. ||The tornado downed numerous trees and caused significant damage to several structures as it moved through western Madison County. Notable damage occurred at the Madison County Airport where one of the metal hangars was completely collapsed. There was also significant damage to several other hangars and planes at the airport. Based on the damage, winds were estimated to be 130 mph at this location. The tornado continued east from here, damaging other dwellings and trees. One…
- Jan 6, 1996Winter Storm, Madison$500,000
National Weather Service narrative
The Blizzard of '96 developed near the Gulf Coast and moved up the East Coast. This massive system produced the greatest total and 24 hour snowfall at Greater Cincinnati\Northern Kentucky airport. This one storm brought 14.3 inches of snowfall to the airport which normally receives 23 inches for an entire season. The heaviest snow fell near the Ohio river in the extreme south. The worst blizzard conditions occurred over West Central areas as dry and powdery snow was blown around by high winds causing whiteouts. Some areas had more than 30 continuous hours of snowfall, and many people in Southern Ohio felt this was the worst winter storm since the Blizzard of '78. In Fayette…
- Feb 28, 2024Tornado$250,000
National Weather Service narrative
The tornado developed near State Route 665, east of London, and moved to the east-northeast. The tornado initially caused minor tree and structural damage, including a tipped over trailer. It then strengthened as it crossed Spring Valley Road and then across Glade Run Road, where it peaked in intensity as it crossed Wilson Road. At this location, a home lost part of its roof and tree damage was considerable, with snapped|off trunks. Damage in this area was consistent with wind speeds of around 110 mph.||The tornado continued across West Jefferson-Klousville Road and then onward to Olmstead Road. Additional damage meeting the EF1 category was found along Roberts Road, just…
- May 15, 2001Lightning$220,000
National Weather Service narrative
A barn fire in Oak Run Township was started by a lightning strike. The barn was destroyed.
- Jun 1, 1997Flash Flood$100,000
National Weather Service narrative
Thunderstorms trained across the same areas with the northern part of the county being hit the hardest. Many area creeks and streams rose out of their banks and numerous roads were closed due to flooding.
- Jun 29, 1998Flash Flood$100,000
National Weather Service narrative
From 6 to 8 inches of rain fell across the eastern portion of the county, much of which fell in less than 6 hours. Numerous roads were flooded, especially around West Jefferson.
- Jun 2, 1997Flash Flood$100,000
National Weather Service narrative
Heavy rainfall fell for the third day in a row causing most county creeks and streams to rise further out of their banks. Numerous roads were closed due to the flooding.
- Apr 3, 2018Tornado$60,000
National Weather Service narrative
The tornado appears to have touched down at a farm on Roberts Mill Road, where several barns sustained heavy damage. These barns had complete roof removal and the collapse of exterior walls. Barn roofing and wall material was thrown west- northwest across Roberts Mill Road into the tops of trees of adjacent properties, and strewn across fields on the west side of Roberts Mill Road. The damage is consistent with wind speeds around 85 mph.||Other barn damage observed on State Route 38 south of Newport, Old Xenia Road SW south of London, and on State Route 56 southeast of London, was all determined to be nontornadic with no conclusive components of typical tornado damage.
- Jun 29, 2012Thunderstorm Wind$50,000
National Weather Service narrative
A large pole barn was destroyed and numerous trees were downed due to thunderstorm winds.
- 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 John Glenn International Airport, 30.5 miles from the city centre, with records from 1948.
- All-time high
- 104°FJul 14, 1954
- All-time low
- −22°FJan 19, 1994
- Warmest night
- 79°FJul 30, 1999
- Coldest day
- −5°FJan 20, 1985
- Wettest day
- 5.13 inJul 13, 1992
- Snowiest day
- 15.5 inMar 8, 2008
- Hottest year
- 2024mean 57.3°F
- Coldest year
- 1976mean 49.6°F
- Wettest year
- 201855.18 in
- Driest year
- 196324.51 in
- Snowiest season
- 56.4 in2013-14
Median first snow
November 20
Earliest: October 15, 2024
Median last snow
April 1
Latest: May 7, 1989
0 of 78 winters had no measurable snow.
Station John Glenn International Airport (USW00014821), 810 ft elevation, 30.5 miles from the city centre. Daily records from 1948 to October 27, 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.
Federal disaster declarations
12 since 1953. The most recent: Covid-19 Pandemic, March 31, 2020.
Declarations for Madison County.
| Mar 31, 2020 | Biological | DR-4507-OH |
| Mar 13, 2020 | Biological | EM-3457-OH |
| Jun 30, 2012 | Severe Storm | EM-3346-OH |
| Oct 24, 2008 | Severe Storm | DR-1805-OH |
| Apr 24, 2008 | Snowstorm | EM-3286-OH |
| Sep 13, 2005 | Hurricane | EM-3250-OH |
| Jan 11, 2005 | Snowstorm | EM-3198-OH |
| Sep 19, 2004 | Severe Storm | DR-1556-OH |
| Mar 14, 2003 | Severe Storm | DR-1453-OH |
| Jun 6, 1990 | Severe Storm | DR-870-OH |
| Jan 26, 1978 | Snowstorm | EM-3055-OH |
| Apr 4, 1974 | Tornado | DR-421-OH |
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.
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 USW00014821.
- 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.