Union County

Population 12,839 (2025) 343 sq mi

Property owners in Union County have filed 16 federal flood insurance claims since 1978, 86th most of 120 counties in Kentucky.

Hazard fingerprint for Union County Tornado: 91th percentile. Tropical: 0th percentile. Wildfire: 0th percentile. Flood: 93th percentile. Hail & wind: 59th percentile. Heat: 92th percentile. Cold: 95th percentile. Winter: 74th 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 since 195029
  • Tropical cyclone tracks within 100 miles since 1851, wider where stronger2

At a glance

The record for Union County in eight numbers. Each links to its section below.

Flood insurance claims

16

86th of 120 in Kentucky

$358,000 paid since 1999

Details

Tornadoes since 1950

29

8th of 120 in Kentucky

2.9 times the typical Kentucky county

Details

Tropical cyclones within 100 mi

2

None within 50 miles since 1851

Details

Strongest tornado

F3

June 28, 1960, 14.2 mile path

Largest earthquake within 50 mi

5.3magnitude

November 9, 1968, 20.3 miles away

Details

Federal disaster declarations

28

Most recent: Severe Winter Storm, 2026

Details

Record high

109°F

July 24, 1901

Details

Record low

−21°F

January 7, 1912

Details

Tornadoes

About one every 2.6 years since 1950, 4 of them rated F3/EF3 or stronger.

Strongest

June 28, 1960

F3, 14.2 mile path

10 yards wide.

Most recent

Friday, May 16, 2025

EF3, 9.9 mile path

Within the past year.

Tornadoes by decade Doppler radar era² 1950s: 2 2 1960s: 2 2 1970s: 2 2 1980s: 2 2 1990s: 1 1 2000s: 3 3 2010s: 7 7 2020s: 10 10 1950s1960s1970s1980s1990s2000s2010s2020s
Recorded tornadoes per decade. The 2020s are incomplete.
Tornadoes by month J: 0 F: 2 M: 9 9 A: 6 M: 5 J: 4 J: 2 A: 0 S: 0 O: 0 N: 1 D: 0 JFMAMJJASOND
By month of occurrence, all years.

Every recorded tornado

Tornadoes in Union County since 1950
May 16, 2025EF39.950040
Jul 9, 2024EF16.315000
Jul 9, 2024EF13.315000
May 26, 2024EF03.55000
Apr 2, 2024EF10.710010
Apr 2, 2024EF11.25000
Apr 2, 2024EF26.815000
Mar 3, 2023EF03.62500
Mar 3, 2023EF11.810000
Mar 3, 2023EF16.710000
Mar 14, 2019EF19.912510
May 10, 2016EF13.75000
Jun 4, 2014EF11.17500
Jun 4, 2014EF11.110000
Nov 17, 2013EF314.120000
Mar 2, 2012EF26.620010
Apr 22, 2011EF215.530020
Mar 28, 2009EF312.340020
Mar 28, 2009EF12.17500
May 6, 2003F115.010000
Feb 27, 1999F13.010020
Mar 29, 1985F00.51000
Mar 29, 1985F00.51000
Jun 2, 1973F10.51000
Apr 19, 1973F20.51000
May 26, 1962F00.11000
Jun 28, 1960F314.210120
Feb 10, 1959F10.11000
Apr 3, 1956F00.11010
  1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Union 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.

Hurricanes and tropical storms

2 tropical cyclones passed within 100 miles since 1851, none within 50.

Most recent

October 26, 2019

Olga, Post-tropical

40.2 miles at closest approach.

Every storm within 100 miles

Tropical cyclones within 100 miles
Olga201940.2Post-tropical43Tropical storm
Ike200896.3Post-tropical52Category 4
Unnamed194168.5Tropical storm40Category 3
Unnamed191522.7Post-tropical40Category 4
Unnamed188860.3Tropical storm56Category 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 here since satellite mapping began in 1984.

Smoke overhead

Smokiest year

2023: 56 days

Heavy smoke on 10 days in 2023, the most of any year.

Last 10 years

16.6 days a year

Medium or heavy smoke, 2016 to 2025.

2025

12 days

Medium or heavy smoke. 37 so far in 2026.

Days with medium or heavy smoke overhead, by year 2011: 8 2012: 8 2013: 7 2014: 6 2015: 7 2016: 0 2017: 3 2018: 7 2019: 7 2020: 11 2021: 39 2022: 16 2023: 56 56 2024: 15 2025: 12 201120122013201420152016201720182019202020212022202320242025
Days each year on which a satellite-traced plume of medium or heavy smoke covered the county’s population 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

16 federal flood insurance claims since 1999, with $358,000 paid.

Federal flood insurance claims by year 2011: 6 6 2011
Claims per year since 1999. Years with fewer than five claims are not shown.

Most claims in one year

2011: 6 claims

$231,000 paid.

Claims by ZIP code

Flood insurance claims by ZIP code
4245910$230,000

Flood events since 1996

  • Flood112
  • Flash Flood18
  • Heavy Rain2

1 death recorded in flood events since 1996.

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

January 30, 1937

Ohio River at Shawneetown, 65.64 ft

32.64 feet above the 33.0 ft flood stage; major flooding by today’s categories.

Most recent moderate or major crest

April 14, 2025

Ohio River at Shawneetown, 53.33 ft

Major flooding.

Highest river crests above flood stage
Jan 30, 1937Ohio River at Shawneetown65.64+32.64Major
Feb 1, 1937Ohio River at J.T. Myers Lock and Dam64.40+27.40Major
May 6, 2011Ohio River at Shawneetown56.36+23.36Major
Mar 14, 1945Ohio River at Shawneetown55.60+22.60Major
Jan 19, 1950Ohio River at Shawneetown55.30+22.30Major
Mar 20, 1964Ohio River at Shawneetown54.60+21.60Major
Mar 12, 1997Ohio River at Shawneetown54.40+21.40Major
Apr 14, 2025Ohio River at Shawneetown53.33+20.33Major
Apr 5, 1913Ohio River at J.T. Myers Lock and Dam57.80+20.80Moderate
May 6, 2011Ohio River at J.T. Myers Lock and Dam56.92+19.92Moderate
May 16, 1961Ohio River at Shawneetown52.40+19.40Moderate
Jan 9, 1991Ohio River at Shawneetown52.30+19.30Moderate
Mar 4, 2018Ohio River at Shawneetown52.06+19.06Moderate
Mar 8, 1979Ohio River at Shawneetown51.10+18.10Moderate
Mar 24, 1963Ohio River at Shawneetown50.80+17.80Moderate
Mar 14, 1945Ohio River at J.T. Myers Lock and Dam54.60+17.60Moderate
Jan 16, 2005Ohio River at Shawneetown50.57+17.57Moderate
Apr 24, 1948Ohio River at Shawneetown50.40+17.40Moderate
Apr 14, 2025Ohio River at J.T. Myers Lock and Dam54.09+17.09Moderate
Jan 19, 1950Ohio River at J.T. Myers Lock and Dam54.00+17.00Moderate
Mar 12, 1997Ohio River at J.T. Myers Lock and Dam53.84+16.84Moderate
Mar 9, 1962Ohio River at Shawneetown49.70+16.70Moderate
Mar 29, 1943Ohio River at Shawneetown49.60+16.60Moderate
Mar 20, 1964Ohio River at J.T. Myers Lock and Dam53.50+16.50Moderate
May 11, 1983Ohio River at Shawneetown49.30+16.30Moderate

River gauges

River gauges and their highest listed crests
Ohio River at J.T. Myers Lock and Dam37.064.40 ftFeb 1, 19371
Ohio River at Shawneetown33.065.64 ftJan 30, 19377
  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.

Drought

In severe drought or worse for 141 of 1,581 months since 1895 (9%); the longest spell lasted 20 months.

141

Months in severe drought or worse since 1895

55

Months in extreme drought

9%

Share of all months, severe or worse

34

Drought reports to the Weather Service since 1996

Lowest reading

February 1931

−5.64, extreme drought

Longest severe spell

20 months

August 1953 to March 1955.

Latest month

September 2026

−1.73, mild drought

Last severe month: April 2026.

Months in severe drought or worse, by year 1895: 0 1896: 0 1897: 0 1898: 0 1899: 0 1900: 0 1901: 3 1902: 8 1903: 0 1904: 0 1905: 0 1906: 0 1907: 0 1908: 2 1909: 1 1910: 0 1911: 0 1912: 0 1913: 3 1914: 8 1915: 2 1916: 0 1917: 0 1918: 0 1919: 0 1920: 0 1921: 0 1922: 0 1923: 0 1924: 0 1925: 3 1926: 1 1927: 0 1928: 0 1929: 0 1930: 6 1931: 12 12 1932: 2 1933: 0 1934: 5 1935: 0 1936: 4 1937: 0 1938: 0 1939: 0 1940: 5 1941: 9 1942: 0 1943: 0 1944: 8 1945: 1 1946: 0 1947: 0 1948: 0 1949: 0 1950: 0 1951: 0 1952: 2 1953: 7 1954: 12 1955: 5 1956: 3 1957: 2 1958: 0 1959: 0 1960: 0 1961: 0 1962: 0 1963: 3 1964: 9 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: 1 1982: 0 1983: 0 1984: 0 1985: 0 1986: 0 1987: 0 1988: 1 1989: 0 1990: 0 1991: 0 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 0 2001: 0 2002: 0 2003: 0 2004: 0 2005: 0 2006: 0 2007: 1 2008: 0 2009: 0 2010: 1 2011: 0 2012: 3 2013: 0 2014: 0 2015: 0 2016: 0 2017: 0 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 1 2024: 5 2025: 0 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 and landslides

10 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.3 in 1968.

0

Magnitude 2.5+ inside the county since 1973

29

Magnitude 3+ within 50 miles since 1973

10

Magnitude 4+ within 50 miles since 1900

2

Magnitude 5+ within 50 miles since 1900

Largest within 50 miles

November 9, 1968

Magnitude 5.3

5 km SSW of Norris City, Illinois; 20.3 miles away, 9.8 miles deep.

Most recent, magnitude 3 or more

June 29, 2026

Magnitude 3.5

6 km NE of West Salem, Illinois; 45.7 miles away.

Earthquakes of magnitude 3 or more within 50 miles, by year 1973: 1 1974: 1 1975: 0 1976: 0 1977: 0 1978: 1 1979: 0 1980: 1 1981: 1 1982: 0 1983: 0 1984: 2 1985: 1 1986: 0 1987: 0 1988: 1 1989: 0 1990: 0 1991: 1 1992: 0 1993: 0 1994: 0 1995: 0 1996: 0 1997: 0 1998: 0 1999: 0 2000: 1 2001: 0 2002: 1 2003: 2 2004: 0 2005: 0 2006: 2 2007: 0 2008: 7 7 2009: 0 2010: 0 2011: 0 2012: 1 2013: 0 2014: 0 2015: 1 2016: 0 2017: 2 2018: 0 2019: 0 2020: 0 2021: 0 2022: 0 2023: 1 2024: 0 2025: 0 19731978198319881993199820032008201320182023
Per year, 1973 to 2025.

Every earthquake of magnitude 4 or more within 50 miles

Earthquakes of magnitude 4 or more within 50 miles
Apr 21, 20084.037.811.47 km NNE of Bellmont, Illinois
Apr 18, 20084.738.69.69 km NNE of Bellmont, Illinois
Apr 18, 20085.238.18.97 km NNE of Bellmont, Illinois
Jun 18, 20024.611.510.06 km SW of Parkers Settlement, Indiana
Apr 3, 19744.548.56.83 km W of Parkersburg, Illinois
Nov 9, 19685.320.39.85 km SSW of Norris City, Illinois
Nov 7, 19584.437.23.11 km SW of Bone Gap, Illinois
Sep 2, 19254.614.5—Kentucky
Apr 27, 19254.821.7—3 km NNW of Poseyville, Indiana
Nov 26, 19224.821.0—4 km SE of Raleigh, Illinois
  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.

Mapped landslides

5

Landslides mapped, probable or better

1

With a recorded date

1

Source inventory

Mapped by KY GS (5).

  1. Landslides mapped in the USGS compilation of landslide inventories across the United States (version 3.0, 2025), rated probable or better. The compilation joins inventories made by federal and state agencies for different purposes and areas, so the number mapped in a county reflects how closely it has been surveyed as much as how often its slopes fail. An area with few records may simply not have been mapped. Deaths are as recorded in the inventories; a slide listed in two inventories is counted once.

USGS Landslide Inventories across the United States, version 3.0, retrieved October 27, 2026.

Severe weather and other events

777 events in the National Weather Service record, 725 of them since 1996.

32

Hail reports, 1 inch or larger

2

Hail, 2 inches or larger

57

Damaging gusts, 58 mph+

114

Winter weather events since 1996

83

Heat events since 1996

72

Cold events since 1996

Largest hail

March 28, 2009

2.75 inches

Strongest measured or estimated gust

June 4, 2014

96 mph

More event types since 1996

Other Storm Events types since 1996
Lightning100May 30, 2015
Dense fog and smoke9400Apr 25, 2026

Costliest events since 1996

  1. May 16, 2025Tornado$15.0 million
    National Weather Service narrative

    An EF-3 tornado with peak winds of 155 mph impacted the south side of Morganfield, KY, on the evening of May 16, 2025. The tornado began along Bunger Road where ground scouring of newly-planted crops was seen. Moving east, the tornado intensified,|doing EF-3 damage to several homes on Highway 130, Robinson Road, US Highway 60, Terre Hill Road, and Wildlife Road. Some homes suffered near catastrophic damage, with most roofs and most exterior walls removed. The tornado weakened after it crossed Highway 56 moving east, lifting near Kit Harris Road. The tornado reached a peak width of around 500 yards and caused four minor injuries along its 9.94 miles track.

  2. Jan 26, 2009Ice Storm, Union$8.7 million
    National Weather Service narrative

    This historic, prolonged ice storm was called the biggest disaster in modern Kentucky history by the governor of Kentucky. The storm produced at least one inch of ice across western Kentucky. Locally very destructive icing around 1.5 inches occurred from the Mississippi River counties east across Paducah and Madisonville to Owensboro. This resulted in unprecedented damage to utility infrastructure in western Kentucky. One hundred percent of residents in the hardest-hit counties from the Mississippi River to Madisonville were affected by power outages. A utility company serving areas from Ballard to Livingston Counties reported that 20 percent of its system had to be rebuilt. The…

  3. Sep 14, 2008High Wind, Union$5.2 million
    National Weather Service narrative

    Frequent wind gusts from 60 to nearly 80 mph caused widespread damage in western Kentucky. The low pressure center that was the remnant of Hurricane Ike raced northeast at 40 to 50 mph across Missouri and Illinois. The center passed between Carbondale and St. Louis on its way toward the northeastern states. The rapid speed of the low pressure system contributed to this high wind event. ||Several counties reported hundreds of structures sustained roof and siding damage. Other counties reported dozens of damaged structures. The county of Crittenden alone estimated 1,500 homes sustained some degree of wind damage. Extensive tree damage occurred. Thousands of trees were uprooted and…

  4. May 1, 2011Flood$1.0 million
    National Weather Service narrative

    Major flooding continued on the Ohio River from April. At the Uniontown river gage, the flood crest of 56.94 feet on the morning of May 6 was about three feet higher than the 1997 flood. This was still over seven feet lower than the record crest set in 1937. The Ohio River floodgates were installed on Kentucky Highway 923 at Sturgis. This was the first time since the March 1997 flood that such actions were required. Sandbagging was done to protect some houses. Several county roads were closed, as was the main traffic artery through the county, U.S. Highway 60. There were at least 14 state highways and 18 county roads posted as closed in Union County.

  5. Nov 17, 2013Tornado$500,000
    National Weather Service narrative

    The tornado began just northwest of Morganfield, then tracked north of and parallel to U.S. Highway 60. A church roof was lifted and blown sideways. There were numerous homes with roof damage and some substantial structural damage. One home sustained total roof loss. Numerous hardwood trees were snapped or uprooted, some of which were very large. Several barns and outbuildings were destroyed. One mobile home slid off its foundation. Another mobile home disintegrated, with no walls, flooring, or roofing found. The steel I-beam undercarriage was twisted. A large metal storage building was destroyed. The steel I-beams supporting the roof were twisted. This metal building, about a…

  6. Feb 11, 2008Winter Storm, Union$500,000
    National Weather Service narrative

    Low pressure developed over the southern Plains, spreading widespread heavy precipitation across western Kentucky. At the same time, high pressure over the upper Ohio Valley produced a cold easterly wind flow. The result was a crippling ice storm. Around one inch of ice caused extensive damage across parts of western Kentucky, along and north of a line from Paducah to Madisonville. Many of those same areas received two to four inches of sleet and snow. Numerous trees and power lines were brought down, knocking out power to many thousands of homes. Power outages lasted up to a week. Emergency shelters were established in several counties (including Livingston, Crittenden, and…

  7. Apr 2, 2024Tornado$500,000
    National Weather Service narrative

    This EF-2 tornado touched down along the Ohio River in far western Union County with damage to several trees by the river. It travelled eastward, uprooting a tree at KY-871, then sliding a barn off its foundation on its second crossing of KY-871. Crossing Hilltop Rd, the tornado passed about 1.5 miles south of Uniontown. Considerable damage occurred to several homes in the Cottingham Acres Rd area along KY-130. This included significant roof damage, homes being shifted off their foundation, and an overturned manufactured home. Dozens of trees were uprooted or snapped along the path. The tornado lifted just east of Hodgins Rd after flipping a trailer several yards and turning a…

  8. Nov 14, 2005Flash Flood$500,000
    National Weather Service narrative

    Most of the flooding was from Morganfield east to the Henderson County line. At least a half-dozen businesses were flooded in Morganfield, including businesses in the Union County Shopping Center. Several homes in Sturgis and Morganfield were flooded. An auto shop and a YMCA building were flooded. Numerous roads were flooded or closed. Half of the roads in the Sturgis area were closed due to standing water. Parts of U.S. Highway 60 were impassable due to flooding. County schools were closed.

  9. May 6, 2003Tornado$400,000
    National Weather Service narrative

    The tornado downed numerous trees. One farm, located on Highway 56 near the junction of Highway 141, was heavily damaged. Many trees were blown down in a wildlife area. The tornado crossed into Henderson County, where most of the structural damage occurred.

  10. Apr 22, 2011Tornado$300,000
    National Weather Service narrative

    Several grain bins and barns were destroyed along the Union/Webster County line along Highway 56 and on a secondary road. Dozens of trees were uprooted and snapped. Peak winds were estimated near 125 mph. The average path width was 150 yards. The tornado exited into Webster County.

  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 Mount Vernon, 19.2 miles from the county’s population centre, with records from 1893.

All-time high
109°FJul 24, 1901
All-time low
−21°FJan 7, 1912
Warmest night
83°FJul 24, 1901
Coldest day
−7°FFeb 9, 1899
Wettest day
7.40 inApr 29, 1996
Snowiest day
14.0 inJan 12, 1912
Hottest year
1921mean 61.2°F
Coldest year
1958mean 53.8°F
Wettest year
195765.27 in
Driest year
196324.82 in
Snowiest season
50.3 in1911-12
Average monthly high and low temperature and precipitation, last 30 years, Mount Vernon 32°F 42° 25° 3.2 Jan 46° 28° 2.7 Feb 56° 37° 4.3 Mar 67° 47° 5.0 Apr 77° 57° 4.5 May 85° 66° 4.0 Jun 88° 69° 4.2 Jul 87° 67° 3.0 Aug 82° 61° 3.0 Sep 70° 49° 3.2 Oct 57° 38° 3.1 Nov 47° 30° 3.5 Dec Precipitation, inches
Average daily high and low by month, and average monthly precipitation, over the last 30 years.
Days reaching 95°F per year 1975: 0 1976: 5 1977: 14 1978: 20 1979: 2 1980: 31 1981: 5 1983: 34 34 1984: 8 1985: 3 1986: 14 1987: 4 1988: 21 1989: 1 1990: 7 1991: 8 1992: 0 1993: 7 1994: 1 1995: 8 1996: 0 1997: 2 1998: 3 1999: 5 2005: 12 2006: 9 2007: 18 2009: 7 2011: 14 2012: 22 2013: 2 2014: 0 2015: 1 2017: 4 2018: 1 2019: 1 2020: 0 2021: 1 2024: 8 1975198619962013
Days reaching 95°F each complete year, last 50 years. Thirty-year average: 5.9.
Snowfall by winter 1975: 4.2 in 1976: 23.5 in 1977: 35.3 in 35.3 1978: 31.0 in 1979: 12.0 in 1980: 2.7 in 1981: 14.8 in 1982: 0.7 in 1983: 21.3 in 1984: 27.2 in 1985: 8.0 in 1986: 8.4 in 1987: 6.0 in 1989: 8.4 in 1990: 6.8 in 1991: 3.0 in 1992: 17.8 in 1993: 21.0 in 1994: 1.5 in 1995: 28.7 in 1996: 10.5 in 1997: 12.6 in 1998: 15.6 in 1999: 2.0 in 2001: 0.0 in 2004: 0.5 in 2005: 1.3 in 2006: 3.0 in 2007: 2.9 in 2008: 0.6 in 2009: 10.6 in 2010: 4.2 in 2011: 0.6 in 2017: 4.0 in 2022: 2.0 in 2023: 2.4 in 2024: 6.0 in 1975198519962009
Total snowfall each winter (July to June), last 50 winters.

Median first snow

December 23

Earliest: October 29, 1925

Median last snow

February 28

Latest: April 26, 1910

3 of 109 winters had no measurable snow.

Station Mount Vernon (USC00126001), 357 ft elevation, 19.2 miles from the population centre. Daily records from 1893 to October 27, 2026; 86.8% 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

28 since 1953. The most recent: Severe Winter Storm, January 24, 2026.

Federal disaster declarations
Jan 24, 2026Winter StormSevere Winter StormEmergencyEM-3633-KY
May 23, 2025Severe StormSevere Storms, Straight-Line Winds, and TornadoesMajor disasterDR-4875-KY
Apr 24, 2025Severe StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, and MudslidesMajor disasterDR-4864-KY
Apr 3, 2025Severe StormSevere Storms, Straight-Line Winds, Tornadoes, and FloodingEmergencyEM-3626-KY
Feb 24, 2025Severe StormSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesMajor disasterDR-4860-KY
Feb 16, 2025Severe StormSevere Storms, Straight-Line Winds, Flooding, and LandslidesEmergencyEM-3624-KY
May 22, 2024Severe StormSevere Storms, Straight-Line Winds, Tornadoes, Landslides, and MudslidesMajor disasterDR-4782-KY
Apr 10, 2023Severe StormSevere Storms, Straight-Line Winds, Tornadoes, Flooding, Landslides, and MudslidesMajor disasterDR-4702-KY
Apr 23, 2021FloodSevere, Storms, Flooding, Landslides, and MudslidesMajor disasterDR-4595-KY
Apr 24, 2020Severe StormSevere Storms, Flooding, Landslides, and MudslidesMajor disasterDR-4540-KY
Mar 28, 2020BiologicalCovid-19 PandemicMajor disasterDR-4497-KY
Mar 13, 2020BiologicalCovid-19EmergencyEM-3469-KY
Apr 17, 2019Severe StormSevere Storms, Straight-Line Winds, Flooding, Landslides, and MudslidesMajor disasterDR-4428-KY
Apr 26, 2018FloodSevere Storms, Tornadoes, Flooding, Landslides, and MudslidesMajor disasterDR-4361-KY
Aug 26, 2016Severe StormSevere Storm, Tornadoes, Flooding, Landslides, and MudslidesMajor disasterDR-4278-KY
Apr 30, 2015SnowstormSevere Winter Storms, Snowstorms, Flooding, Landslides, and MudslidesMajor disasterDR-4216-KY
May 4, 2011Severe StormSevere Storms, Tornadoes, and FloodingMajor disasterDR-1976-KY
May 11, 2010Severe StormSevere Storms, Flooding, Mudslides, and TornadoesMajor disasterDR-1912-KY
Feb 5, 2009Severe Ice StormSevere Winter Storm and FloodingMajor disasterDR-1818-KY
Jan 28, 2009Severe Ice StormSevere Winter StormEmergencyEM-3302-KY
Oct 9, 2008Severe StormSevere Wind Storm Associated With Tropical Depression IkeMajor disasterDR-1802-KY
Sep 10, 2005HurricaneHurricane KatrinaEmergencyEM-3231-KY
Feb 8, 2005SnowstormSevere Winter Storm and Record SnowMajor disasterDR-1578-KY
Jun 10, 2004Severe StormSevere Storms, Tornadoes, Flooding, and MudslidesMajor disasterDR-1523-KY
Jun 3, 2003Severe StormSevere Storms, Flooding, Mud and Rock Slides, and TornadoesMajor disasterDR-1471-KY
May 7, 2002Severe StormSevere Storms, Tornadoes and FloodingMajor disasterDR-1414-KY
Mar 4, 1997Severe StormSevere Storm, Flooding, and TornadoesMajor disasterDR-1163-KY
Jan 13, 1996SnowstormBlizzard of 96Major disasterDR-1089-KY

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 Union County stands among 120 counties in Kentucky and 3,143 in the United States.

Ranks
Tornadoes since 1950298 / 1201,039 / 3,143
Tornadoes rated F3/EF3 or stronger49 / 120387 / 3,143
Tropical cyclones within 50 mi0——
Hurricane-strength passes within 50 mi0——
Wildfire acres since 19840——
Flood insurance claims1686 / 1202,156 / 3,143
Flood insurance paid$358,00085 / 1201,910 / 3,143
Disaster declarations2844 / 120491 / 3,143
Flood events since 199613212 / 120372 / 3,143
Hail and wind events since 199616975 / 1202,216 / 3,143
Winter storm events since 199611410 / 120790 / 3,143
Reported damage since 1996$35.6 million20 / 1201,044 / 3,143
River crests at major flood stage813 / 120612 / 3,143
High tide flooding days a year, last 10 years0.0——
Months in severe drought since 189514129 / 1201,162 / 3,143
Medium or heavy smoke days a year, last 10 years16.68 / 1201,392 / 3,143
Earthquakes M4+ within 50 mi since 1900108 / 120401 / 3,143
Earthquakes M2.5+ in the county since 19730——

Neighbouring counties

Neighbouring counties
Crittenden County121015
Gallatin County IL141047
Hardin County IL50016
Henderson County2700380
Posey County IN2500144
Webster County23109

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 USC00126001.
  • 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.
  • Landslides USGS Landslide Inventories across the United States, version 3.0 (2025).
  • 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.