Jessamine County
Population 57,147 (2025) 172 sq mi
Property owners in Jessamine County have filed 179 federal flood insurance claims since 1978, 33rd most of 120 counties in Kentucky.
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 19507
- Tropical cyclone tracks within 100 miles since 1851, wider where stronger3
- Major flood years since 19781
At a glance
The record for Jessamine County in eight numbers. Each links to its section below.
Tornadoes since 1950
7
79th of 120 in Kentucky
Fewer than the typical Kentucky county, which has had 10
DetailsTropical cyclones within 50 mi
3
6th of 120 in Kentucky
None at hurricane strength since 1851
DetailsStrongest tornado
F2
April 23, 1968, 3.3 mile path
Strongest tropical cyclone
TS
Tropical storm (unnamed), 1888, 18.5 miles away
Federal disaster declarations
26
Most recent: Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides, 2026
DetailsTornadoes
About one every 11 years since 1950, none rated F3/EF3 or stronger.
Strongest
April 23, 1968
F2, 3.3 mile path
60 yards wide.
Most recent
Sunday, October 19, 2025
EF1, 0.7 mile path
Within the past year.
Every recorded tornado
| Oct 19, 2025 | EF1 | 0.7 | 0 | 0 |
| Apr 2, 2024 | EF1 | 0.4 | 0 | 0 |
| Apr 2, 2024 | EF1 | 1.8 | 0 | 0 |
| May 28, 1996 | F0 | 10.0 | 0 | 0 |
| Jun 18, 1992 | F0 | 2.0 | 0 | 0 |
| Apr 23, 1968 | F2 | 3.3 | 3 | 0 |
| May 14, 1967 | F0 | 0.1 | 0 | 0 |
- Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Jessamine 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
3 passed within 50 miles since 1851; none at hurricane strength.
Strongest within 50 miles
August 21, 1888
Unnamed storm, Tropical storm
18.5 miles at closest approach, winds near 52 mph.
Most recent
September 27, 2024
Helene, Remnant low
57.5 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 here since satellite mapping began in 1984.
Smoke overhead
Smokiest year
2023: 53 days
Heavy smoke on 12 days in 2023, the most of any year.
Last 10 years
14.7 days a year
Medium or heavy smoke, 2016 to 2025.
2025
10 days
Medium or heavy smoke. 33 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
179 federal flood insurance claims since 1978, with $4.4 million paid.
Most claims in one year
2010: 40 claims
$1.5 million paid.
2nd most
2025: 22 claims
$1.6 million paid.
3rd most
1989: 22 claims
$285,000 paid.
Claims by ZIP code
| 40390 | 95 | $2.9 million |
| 40356 | 61 | $985,000 |
| 40515 | 16 | $414,000 |
Flood events since 1996
- Flash Flood16
- Flood14
- Heavy Rain1
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
December 8, 1978
Kentucky River at High Bridge Lock, 53.10 ft
23.10 feet above the 30.0 ft flood stage; major flooding by today’s categories.
Most recent moderate or major crest
April 6, 2025
Kentucky River at Camp Nelson, 47.04 ft
Major flooding.
River gauges
| Kentucky River at Camp Nelson | 30.0 | 47.04 ft | 6 |
| Kentucky River at High Bridge Lock | 30.0 | 53.10 ft | 6 |
- 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 184 of 1,581 months since 1895 (12%); the longest spell lasted 31 months.
184
Months in severe drought or worse since 1895
89
Months in extreme drought
12%
Share of all months, severe or worse
Lowest reading
January 1931
−6.95, extreme drought
Longest severe spell
31 months
November 1899 to May 1902.
Latest month
September 2026
+1.44, slightly wet
Last severe month: November 2008.
- 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
3 earthquakes of magnitude 4 or more within 50 miles since 1900; the largest was magnitude 5.0 in 1980.
0
Magnitude 2.5+ inside the county since 1973
8
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
July 27, 1980
2 km SW of Sharpsburg, Kentucky; 33.6 miles away, 6.2 miles deep.
Most recent, magnitude 3 or more
December 28, 2025
Magnitude 3.1
11 km ENE of Lancaster, Kentucky; 7.6 miles away.
Every earthquake of magnitude 4 or more within 50 miles
| Sep 6, 1988 | 4.4 | 34.5 |
| Sep 6, 1988 | 4.6 | 37.8 |
| Jul 27, 1980 | 5.0 | 33.6 |
- 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.
Mapped landslides
11
Landslides mapped, probable or better
6
With a recorded date
1
Source inventory
Mapped by KY GS (11).
- 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
237 events in the National Weather Service record, 200 of them since 1996.
16
Hail reports, 1 inch or larger
4
Hail, 2 inches or larger
107
Damaging gusts, 58 mph+
29
Winter weather events since 1996
0
Heat events since 1996
6
Cold events since 1996
Largest hail
June 22, 1979
2.75 inches
Strongest measured or estimated gust
February 6, 2008
90 mph
More event types since 1996
| Lightning | 3 | 2 |
Costliest events since 1996
- May 2, 2010Flood$500,000
National Weather Service narrative
The Kentucky River at High Bridge Lock crested around 42.6 feet at 1 PM EST on May 4. Flood stage at High Bridge is 30 feet. Major flooding occurs at this level, with a large section of Wilmore flooded.
- Feb 15, 2003Ice Storm, Jessamine$300,000
National Weather Service narrative
Light to occasionally moderate freezing rain began on the evening of the 15th, and continued through the evening of the 16th. Reports of ice accumulations of an inch were common along and north of Interstate 64, from Frankfort to Winchester. The hardest hit areas were in and around the cities of Frankfort and Lexington, where up to an inch and a quarter of ice accumulation was observed. A 78 year old male in Lawrenceburg in Anderson County died of injuries sustained when he was struck by a falling, ice covered, tree limb. After the storm, it is estimated that nearly 125,000 residents were without power for up to five days or more. Most of the property damage was reported in the…
- Mar 2, 1997Flood, Jessamine$200,000
National Weather Service narrative
Record to near record rainfall from early March 1 through March 2 caused the highest flooding on the Kentucky River at Frankfort since 1937 with the river cresting at 45.2 feet at 1 pm est March 3 (flood stage is 31 feet). Meanwhile, further south where rain totals were not as high, the flooding was only minor. The river at Highbridge crested at 37.4 feet at 7 pm est March 2 (flood stage is 30 feet). At Ford, the river only reached 27.1 feet at 8 pm est March 5 (flood stage is 26 feet). Numerous rescues were made during both the flash flooding and the flooding along the Kentucky River. The flooding was particularly bad along Elkhorn Creek in Franklin county where many two-story…
- Jul 2, 2018Flash Flood$100,000
National Weather Service narrative
West Lane near Hickman Creek Crossing was washed out from high water.
- May 2, 2010Flood$100,000
National Weather Service narrative
Six to eight inches of rain fell over Mercer county from May 1-2. This caused major flooding on the Kentucky River that lasted many days before receding.
- Feb 6, 2008Thunderstorm Wind$100,000
National Weather Service narrative
Straight line winds pushed a one storey house a foot off of its foundation. A section of the roof was also blown off and thrown 100 yards. Winds also destroyed a nearby shed, and uprooted several pine trees.
- Jun 23, 2017Thunderstorm Wind$75,000
National Weather Service narrative
A NWS Storm Survey team found sporadic wind damage along a 5.5 mile path near Wilmore. Several trees were downed along with some utility poles snapped or bent. There also minor structural damage.
- Feb 6, 2008Thunderstorm Wind$50,000
National Weather Service narrative
A cold front along with a strong upper level low produced a squall line that crossed central Kentucky. This set off widespread severe weather, and spawned several tornadoes.
- Mar 4, 2008Thunderstorm Wind$50,000
National Weather Service narrative
Thunderstorm winds downed a tree, and the tree fell through a house.
- Apr 5, 2017Thunderstorm Wind$50,000
National Weather Service narrative
The Jessamine County emergency manager reported trees down on power lines. Several hundred homes were without power.
- 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 Lexington Bluegrass Airport, 10.3 miles from the county’s population centre, with records from 1872.
- All-time high
- 108°F2 times, most recently Jul 15, 1936
- All-time low
- −21°FJan 24, 1963
- Warmest night
- 83°FJul 8, 1874
- Coldest day
- −3°F2 times, most recently Jan 12, 1918
- Wettest day
- 8.04 inAug 2, 1932
- Snowiest day
- 13.4 inJan 26, 1943
- Hottest year
- 2024mean 59.8°F
- Coldest year
- 1917mean 52.3°F
- Wettest year
- 201871.98 in
- Driest year
- 193024.89 in
- Snowiest season
- 55.4 in1916-17
Median first snow
November 27
Earliest: October 19, 1972
Median last snow
March 22
Latest: May 20, 1894
0 of 137 winters had no measurable snow.
Station Lexington Bluegrass Airport (USW00093820), 962 ft elevation, 10.3 miles from the population centre. Daily records from 1872 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.
Federal disaster declarations
26 since 1953. The most recent: Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides, September 1, 2026.
| Sep 1, 2026 | Severe Storm | DR-4937-KY |
| Jan 24, 2026 | Winter Storm | EM-3633-KY |
| Apr 24, 2025 | Severe Storm | DR-4864-KY |
| Apr 3, 2025 | Severe Storm | EM-3626-KY |
| Feb 16, 2025 | Severe Storm | EM-3624-KY |
| May 22, 2024 | Severe Storm | DR-4782-KY |
| Apr 10, 2023 | Severe Storm | DR-4702-KY |
| Apr 23, 2021 | Flood | DR-4595-KY |
| Mar 28, 2020 | Biological | DR-4497-KY |
| Mar 13, 2020 | Biological | EM-3469-KY |
| Apr 30, 2015 | Snowstorm | DR-4216-KY |
| May 11, 2010 | Severe Storm | DR-1912-KY |
| Feb 5, 2009 | Severe Ice Storm | DR-1818-KY |
| Jan 28, 2009 | Severe Ice Storm | EM-3302-KY |
| Sep 10, 2005 | Hurricane | EM-3231-KY |
| Jun 10, 2004 | Severe Storm | DR-1523-KY |
| Jun 3, 2003 | Severe Storm | DR-1471-KY |
| Mar 14, 2003 | Severe Storm | DR-1454-KY |
| Mar 4, 1997 | Severe Storm | DR-1163-KY |
| Jan 13, 1996 | Snowstorm | DR-1089-KY |
| Jun 13, 1995 | Tornado | DR-1055-KY |
| Mar 16, 1994 | Snowstorm | DR-1018-KY |
| Mar 16, 1993 | Snowstorm | EM-3104-KY |
| Feb 24, 1989 | Flood | DR-821-KY |
| Dec 12, 1978 | Flood | DR-568-KY |
| May 4, 1968 | Tornado | DR-237-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 Jessamine County stands among 120 counties in Kentucky and 3,143 in the United States.
| Tornadoes since 1950 | 7 | 79 / 120 |
| Tornadoes rated F3/EF3 or stronger | 0 | — |
| Tropical cyclones within 50 mi | 3 | 6 / 120 |
| Hurricane-strength passes within 50 mi | 0 | — |
| Wildfire acres since 1984 | 0 | — |
| Flood insurance claims | 179 | 33 / 120 |
| Flood insurance paid | $4.4 million | 29 / 120 |
| Disaster declarations | 26 | 61 / 120 |
| Flood events since 1996 | 31 | 108 / 120 |
| Hail and wind events since 1996 | 130 | 103 / 120 |
| Winter storm events since 1996 | 29 | 96 / 120 |
| Reported damage since 1996 | $1.8 million | 113 / 120 |
| River crests at major flood stage | 12 | 8 / 120 |
| High tide flooding days a year, last 10 years | 0.0 | — |
| Months in severe drought since 1895 | 184 | 4 / 120 |
| Medium or heavy smoke days a year, last 10 years | 14.7 | 53 / 120 |
| Earthquakes M4+ within 50 mi since 1900 | 3 | 50 / 120 |
| Earthquakes M2.5+ in the county since 1973 | 0 | — |
Neighbouring counties
| Fayette County | 9 | 3 |
| Garrard County | 11 | 3 |
| Madison County | 19 | 3 |
| Mercer County | 15 | 3 |
| Woodford County | 7 | 2 |
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 USW00093820.
- 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.