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 for London Tornado: 45th percentile. Tropical: 0th percentile. Wildfire: 0th percentile. Flood: 50th percentile. Hail & wind: 48th percentile. Heat: 33th percentile. Cold: 22th percentile. Winter: 72th percentile. TORTROPFIREFLOODSEVEREHEATCOLDWINTER

Hazard fingerprint Each spoke is this county’s percentile among U.S. counties where that hazard occurs. How it is computed

2026
  • 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.

Flood insurance claims

22

Madison County

$149,000 paid since 1979

Details

Tornadoes since 1950, within 25 mi

88

3 rated F3/EF3 or stronger

Details

Tropical cyclones within 100 mi

1

None within 50 miles since 1851

Details

Strongest tornado

F5

April 3, 1974, 31.3 mile path

Federal disaster declarations

12

Most recent: Covid-19 Pandemic, 2020

Details

Record high

104°F

July 14, 1954

Details

Record low

−22°F

January 19, 1994

Details

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.

Tornadoes by decade, within 25 miles Doppler radar era² 1950s: 5 5 1960s: 11 11 1970s: 10 10 1980s: 10 10 1990s: 6 6 2000s: 7 7 2010s: 23 23 2020s: 16 16 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 9 M: 5 A: 19 M: 20 20 J: 10 J: 10 A: 3 S: 2 O: 6 N: 3 D: 1 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes within 25 miles since 1950
Jul 19, 2025EF12.817500
Mar 30, 2025EF02.625000
Mar 30, 2025EF13.925000
Dec 29, 2024EF00.35000
Apr 17, 2024EF03.015000
Feb 28, 2024EF02.28000
Feb 28, 2024EF00.56000
Feb 28, 2024EF13.820000
Feb 28, 2024EF112.325000
Feb 28, 2024EF221.150030
Sep 28, 2023EF00.02500
Feb 27, 2023EF01.410000
Jun 8, 2022EF05.715000
Jun 8, 2022EF116.920000
Jul 29, 2021EF00.95000
May 18, 2020EF01.97500
May 27, 2019EF04.225000
May 27, 2019EF15.825000
Apr 14, 2019EF02.78000
Apr 12, 2019EFU1.02500
Apr 12, 2019EF00.82500
Feb 7, 2019EF07.515000
Apr 3, 2018EF12.67500
Apr 3, 2018EF00.25000
Apr 3, 2018EF14.315000
Apr 3, 2018EF18.820000
Nov 5, 2017EF16.620000
May 24, 2017EF02.22500
May 24, 2017EF00.72500
Jun 23, 2016EF13.830000
Jul 27, 2014EF00.15000
May 14, 2014EF38.940000
Oct 31, 2013EF00.35000
May 25, 2011EF01.07500
May 25, 2011EF00.57500
May 23, 2011EF10.410000
Oct 26, 2010EF02.23000
Oct 26, 2010EF05.520000
Jun 6, 2010EF03.410000
May 11, 2008EF01.82000
May 8, 2008EF00.21000
May 8, 2008EF00.11000
May 15, 2007EF00.13000
Oct 11, 2006F20.55000
Aug 28, 2006F00.11000
Jul 11, 2006F01.02000
Oct 13, 1999F00.1000
Apr 9, 1999F10.522000
Jul 2, 1997F00.210000
Jul 18, 1993F12.01300
Jun 30, 1993F10.21000
Aug 27, 1992F01.05000
Jul 12, 1989F00.25000
Apr 25, 1989F25.0123160
Jun 10, 1986F115.07300
Apr 20, 1986F13.52760
Mar 10, 1986F228.0100101
May 31, 1985F10.55000
Aug 7, 1984F11.05000
May 2, 1983F111.08300
Apr 3, 1982F13.05010
Jun 21, 1981F11.910030
Apr 19, 1978F19.51000
Sep 11, 1975F10.21000
Apr 3, 1974F215.718000
Apr 3, 1974F531.35331,15036
Jun 19, 1973F00.310010
May 30, 1973F22.01710
May 25, 1973F20.113300
May 10, 1973F389.630080
May 8, 1973F217.36700
Feb 22, 1971F22.010000
May 26, 1968F10.21700
Jul 10, 1966F12.015000
Nov 16, 1965F10.15000
Nov 16, 1965F20.21040
Apr 11, 1965F138.4300130
Apr 11, 1965F10.11000
Mar 17, 1965F15.23000
Mar 8, 1964F10.11000
Jun 5, 1963F20.11000
Apr 19, 1963F20.11000
Jul 28, 1961F01.050000
Jul 5, 1959F10.11000
Jun 13, 1958F25.11000
Apr 28, 1958F10.11000
Feb 25, 1956F20.33000
Oct 11, 1954F10.16700
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
  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.

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 cyclones within 100 miles
Opal199539.4Post-tropical46Category 4
Unnamed191562.4Post-tropical40Category 4
Unnamed190281.1Post-tropical40Category 1
Unnamed189228.3Post-tropical54Tropical storm
Unnamed188885.8Tropical storm52Category 3
  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.

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.

Days with medium or heavy smoke overhead, by year 2011: 5 2012: 4 2013: 4 2014: 8 2015: 10 2016: 1 2017: 6 2018: 6 2019: 8 2020: 12 2021: 35 2022: 13 2023: 55 55 2024: 17 2025: 13 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the city centre, 2011 to 2025.
  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.

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.

Federal flood insurance claims by year 1979: 5 1997: 6 6 1979
Claims per year since 1979. Years with fewer than five claims are not shown.

Most claims in one year

1997: 6 claims

$30,000 paid.

2nd most

1979: 5 claims

$21,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
4314014$118,000
430646$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.

Months in severe drought or worse, by year 1895: 6 1896: 3 1897: 0 1898: 0 1899: 2 1900: 9 1901: 11 1902: 5 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 1 1909: 1 1910: 0 1911: 0 1912: 0 1913: 0 1914: 0 1915: 0 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 0 1926: 0 1927: 0 1928: 0 1929: 0 1930: 6 1931: 6 1932: 0 1933: 0 1934: 12 12 1935: 4 1936: 2 1937: 0 1938: 0 1939: 0 1940: 0 1941: 6 1942: 0 1943: 0 1944: 3 1945: 1 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 0 1953: 4 1954: 5 1955: 0 1956: 0 1957: 0 1958: 0 1959: 0 1960: 0 1961: 1 1962: 0 1963: 2 1964: 5 1965: 1 1966: 0 1967: 0 1968: 0 1969: 0 1970: 0 1971: 0 1972: 0 1973: 0 1974: 0 1975: 0 1976: 0 1977: 0 1978: 0 1979: 0 1980: 0 1981: 0 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 2 1988: 8 1989: 0 1990: 0 1991: 3 1992: 6 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 4 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 0 2008: 0 2009: 0 2010: 0 2011: 0 2012: 0 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 0 2024: 3 2025: 1 18951905191519251935194519551965197519851995200520152025
Months each year with a Palmer index of −3 or lower, 1895 to 2025. Twelve means the whole year.
  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.

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.

  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 city centre.
  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.

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

Other Storm Events types since 1996
Lightning100May 15, 2001
Dense fog and smoke1015Oct 26, 2000

Costliest events since 1996

  1. 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.

  2. 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…

  3. 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…

  4. 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…

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  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.

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
Average monthly high and low temperature and precipitation, last 30 years, John Glenn International Airport 32°F 37° 22° 2.9 Jan 41° 25° 2.6 Feb 52° 33° 3.7 Mar 65° 43° 3.9 Apr 74° 53° 4.5 May 82° 62° 4.3 Jun 85° 66° 4.3 Jul 84° 65° 3.9 Aug 79° 58° 3.3 Sep 66° 46° 2.9 Oct 53° 35° 2.7 Nov 42° 28° 3.3 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Nights at or below freezing per year 1976: 144 144 1977: 114 1978: 122 1979: 117 1980: 118 1981: 121 1982: 117 1983: 116 1984: 110 1985: 102 1986: 95 1987: 108 1988: 138 1989: 125 1990: 101 1991: 112 1992: 96 1993: 100 1994: 119 1995: 117 1996: 119 1997: 108 1998: 81 1999: 100 2000: 114 2001: 91 2002: 100 2003: 112 2004: 101 2005: 101 2006: 86 2007: 95 2008: 111 2009: 101 2010: 111 2011: 95 2012: 91 2013: 121 2014: 115 2015: 98 2016: 98 2017: 89 2018: 115 2019: 109 2020: 96 2021: 103 2022: 98 2023: 85 2024: 74 2025: 111 19761986199620062016
Nights at or below freezing each complete year, last 50 years. Thirty-year average: 101.0.
Snowfall by winter 1976: 32.9 in 1977: 54.1 in 1978: 37.9 in 1979: 16.6 in 1980: 30.1 in 1981: 35.1 in 1982: 11.5 in 1983: 36.1 in 1984: 43.4 in 1985: 25.0 in 1986: 23.2 in 1987: 23.9 in 1988: 18.7 in 1989: 21.2 in 1990: 15.6 in 1991: 18.9 in 1992: 30.6 in 1993: 37.7 in 1994: 20.7 in 1995: 54.1 in 1996: 7.2 in 1997: 10.0 in 1998: 40.5 in 1999: 29.8 in 2000: 26.3 in 2001: 10.1 in 2002: 50.6 in 2003: 25.1 in 2004: 37.3 in 2005: 12.9 in 2006: 22.3 in 2007: 45.3 in 2008: 23.2 in 2009: 50.6 in 2010: 28.7 in 2011: 12.2 in 2012: 41.2 in 2013: 56.4 in 56.4 2014: 33.4 in 2015: 17.1 in 2016: 9.3 in 2017: 30.7 in 2018: 27.4 in 2019: 11.7 in 2020: 27.8 in 2021: 14.5 in 2022: 12.5 in 2023: 12.6 in 2024: 14.8 in 2025: 33.9 in 19761986199620062016
Total snowfall each winter (July to June), last 50 winters.

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.

Federal disaster declarations
Mar 31, 2020BiologicalCovid-19 PandemicMajor disasterDR-4507-OH
Mar 13, 2020BiologicalCovid-19EmergencyEM-3457-OH
Jun 30, 2012Severe StormSevere StormsEmergencyEM-3346-OH
Oct 24, 2008Severe StormSevere Wind Storm Associated With Tropical Depression IkeMajor disasterDR-1805-OH
Apr 24, 2008SnowstormRecord Snow and Near Record SnowEmergencyEM-3286-OH
Sep 13, 2005HurricaneHurricane Katrina EvacuationEmergencyEM-3250-OH
Jan 11, 2005SnowstormSnowEmergencyEM-3198-OH
Sep 19, 2004Severe StormSevere Storms and FloodingMajor disasterDR-1556-OH
Mar 14, 2003Severe StormSevere Winter Storm and Record/Near Record SnowMajor disasterDR-1453-OH
Jun 6, 1990Severe StormSevere Storms, Tornadoes & FloodingMajor disasterDR-870-OH
Jan 26, 1978SnowstormBlizzards & SnowstormsEmergencyEM-3055-OH
Apr 4, 1974TornadoTornadoesMajor disasterDR-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.