Hernando County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Hernando 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.

Every storm within 100 miles

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.

Every large fire

1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

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.

Claims by ZIP code

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

River gauges

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.

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.

More event types since 1996

Costliest events since 1996

1. Sep 5, 2004Tropical Storm, Hernando$23.2 million
   National Weather Service narrative

   Hurricane Frances made landfall just after midnight on September 5th near Vero Beach as a Category 2 storm. The hurricane continued to move slowly west northwestward across central Florida to near Bartow by 2 pm, and just northeast of Tampa by 8 pm, when it was downgraded to a tropical storm. It then emerged back into the Gulf of Mexico near Hudson shortly before midnight. Hurricane Frances took almost 24 hours to move through the Florida peninsula. Frances continued northwestward through the northern gulf of Mexico, making a second landfall on the afternoon of September 6th in the Florida big bend near Tallahassee as a tropical storm. In Lee County the observation at Big Carlos…

2. Sep 26, 2004Tropical Storm, Hernando$10.8 million
   National Weather Service narrative

   Hurricane Jeanne followed the nearly the same path across Florida as Hurricane Frances three weeks earlier and was the unprecedented fourth hurricane to damage Florida during the 2004 hurricane season. The hurricane moved ashore along the east coast of Florida near Stuart late on September 25th with an eye 30 to 40 miles across. Jeanne took a course north of Lake Okeechobee and decreased to a tropical storm in easter Polk County around 9 AM EDT on the 26th. The center of Jeanne curved north of Tampa Bay during the afternoon and traveled north along the coastal counties before exiting north through Levy County around 10 PM. In Hillsborough County the observation from the Vandenburg…

3. Sep 1, 2016Storm Surge/Tide, Coastal Hernando$7.8 million
   National Weather Service narrative

   In Hernando County, storm surge generally ranged from 4 to 6 feet above normal high tide. Damage was estimated at $7,800,000, with 128 properties with minor damage, and 65 with major damage. The storm tide flooded roads and stranded about 975 households in the Hernando Beach community, some of which called 911 to be rescued.

4. Sep 11, 2017Flood$5.0 million
   National Weather Service narrative

   Heavy rains from Hurricane Irma caused the Withlacoochee River at Trilby to rise above flood stage on the 11th, with flooding continuing through the rest of the month. The water level crested at 17.67 feet on September 21st, 1.17 feet above the major flooding threshold. This marks the 5th highest river crest on record for the Withlacoochee River at Trilby.||Farther upstream on the Withlacoochee River, flooding begin at Croom on the 13th and continued through the rest of the month. The river level crested at 11.27 feet on the 22nd, 0.47 feet above the moderate flood stage.||The flood waters entered numerous homes, with Hernando County reporting that 4000 residents were impacted by…

5. Oct 7, 1996Tropical Storm, Hernando$3.9 million
   National Weather Service narrative

   Tropical Storm Josephine moved northeast across the Gulf of Mexico and brought low to moderate range tropical storm force winds to mainly coastal areas of West Central and Southwest Florida. Maximum sustained winds of 45 mph with gusts as high as 71 mph were observed at the Sunshine Skyway Bridge at the mouth of Tampa Bay.Tropical Storm Josephine moved onshore in the Big Bend area of Florida and caused storm surges of 8 to 9 feet at Cedar Key in Levy county shortly after midnight on the 8th. Storm surges of 4 to 6 feet were common from Citrus county south to the Tampa Bay metro area. Storm surges of 2 to 4 feet were common from Anna Maria Island in Manatee county south to Ft.…

6. Dec 18, 1997Flood$1.5 million
   National Weather Service narrative

   The Withlacoochee River at Croom crested at 10.9 feet, nearly two feet above the flood stage of nine feet on the 31st. Several homes along Hernando-Pasco county line, from Croom south to Ridge Manor, were damaged by floodwaters. The most heavily damaged areas were near County Road 575 and U.S. Highway 301 at the Talisman Estates along the eastern Pasco-Hernando county line. Fifty-four homes were damaged by floodwaters of which ten were destroyed and another 27 incurred major damage.

7. Jun 24, 2012Flood$940,000
   National Weather Service narrative

   Part of the Suncoast Parkway between State Road 50 and US 98 was closed due to flooding from heavy rains in Tropical Storm Debby from June 24th through July 4th. Some parts of the Parkway were under 5 feet of water.

8. Sep 10, 2017Tropical Storm, Inland Hernando$600,000
   National Weather Service narrative

   In inland portions of Hernando County, winds from Hurricane Irma were estimated to be around 34 to 50 knots based on surrounding observations. Rainfall was generally around 6 inches or greater. The wind resulted in damage to numerous homes and businesses, as well as knocking over trees and power lines. Hernando County Emergency Management reported that 26 homes or businesses were destroyed by Irma, 45 sustained major damage, 103 had minor damage, and an additional 112 were affected throughout the county.||The total property damage in Hernando County was estimated at $6.1 million, including $800,000 in individual assistance claims and $5.3 million in public assistance claims.…

9. Sep 10, 2017Tropical Storm, Coastal Hernando$500,000
   National Weather Service narrative

   In coastal portions of Hernando County, winds from Hurricane Irma were estimated to be around 34 to 50 knots, with the highest wind reported being a gust to 36 knots at the WeatherFlow station XWKI in Weeki Wachee. Rainfall was generally around 5 inches or greater, with the highest rain total being 10.31 inches at a mesonet station near the Withlacoochee River at Trilby. The wind resulted in damage to numerous homes and businesses, as well as knocking over trees and power lines. Hernando County Emergency Management reported that 26 homes or businesses were destroyed by Irma, 45 sustained major damage, 103 had minor damage, and an additional 112 were affected.||The total damage…

10. Apr 23, 1997Tornado$500,000
    National Weather Service narrative

    A tornado sporatically touched down along a 16 mile path and damaged up to 50 homes from near U.S. HIghway 41, four miles southwest of Brooksville, east to the Ridge Manor area. Several trees and power lines were also downed from the tornado before it lifted and dissipated. Most damage to homes in the path of the tornado consisted of minor to moderate roof damage, destroyed porch and pool enclosures and downed trees.

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.

All-time high

100°F4 times, most recently Aug 13, 2023

All-time low

14°FJan 11, 2010

Warmest night

81°FAug 7, 2024

Coldest day

39°FJan 9, 2010

Wettest day

10.24 inJun 24, 2012

Hottest year

2022mean 73.9°F

Coldest year

2010mean 67.9°F

Wettest year

200368.66 in

Driest year

202533.21 in

Station Brooksville Hernando County Airport (USW00012818), 65 ft elevation, 3.4 miles from the population centre. Daily records from 1996 to October 26, 2026; 98.7% 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.

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.

Neighbouring counties

• 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 USW00012818.
• 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.