San Jacinto County

Every recorded tornado

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

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

The National Weather Service sets flood stages for 1 gauge here but lists no crests for it.

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.

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.

Costliest events since 1996

1. Aug 26, 2017Flash Flood$350 million
   National Weather Service narrative

   Slow moving Tropical Storm Harvey produced very heavy rainfall and flooding over portions of San Jacinto County. Major lowland flooding occurred near the Trinity River and areas below Lake Livingston. There was a report of high water closing Marie Street in Shepherd with numerous reports of other flooded roadways around the county. Many roads and homes along the southern end of Lake Livingston were inundated. FM 3278 was inaccessible due to the inundation of flood waters. Major lowland flooding occurred on the Trinity River near Goodrich. Hundreds to thousands of homes received various levels of damage from flooding; from minor to being completely destroyed.There were 3…

2. Sep 12, 2008Hurricane (Typhoon), San Jacinto$30.0 million
   National Weather Service narrative

   Widespread wind damage with limbs down and trees uprooted in many|Locations. Shingle damage to roofs. Trees on homes. Areas hit hard include|Shepherd and Camilla.

3. Sep 23, 2005Hurricane (Typhoon), San Jacinto$10.0 million
   National Weather Service narrative

   The eye of Hurricane Rita moved ashore in extreme southwest Louisiana between Sabine Pass and Johnson's Bayou In Cameron Parish with a minimum central pressure of 937 mb and maximum sustained winds of 120 mph. Rita was a Category 3 hurricane at landfall.Two and a half weeks after Hurricane Katrina made her final and devastating landfall along the northern Gulf coast, all eyes turned to Tropical Storm Rita as she moved westward through the central Bahamas. On Tuesday, September 20th, Rita rapidly intensified while moving west through the Florida Straits into the Gulf of Mexico. Rita reached Category 2 intensity as the center passed about 50 miles south of Key West and significantly…

4. Jun 8, 2001Tropical Storm, San Jacinto$4.1 million
   National Weather Service narrative

   Tropical Storm Allison formed in the northwest Gulf of Mexico during the early afternoon of June 5th, 80 miles south of Galveston. Allison moved northward, making landfall on the west end of Galveston Island between midnight and 1am on the 6th, less than 12 hours after forming. As Allison moved inland it caused two to three foot tides, which had little impact on the area. On the evening of the 5th a tornado briefly touched down in Brazoria county causing damage to one home in the Manvel area. Over the next five days Allison produced record rainfall that led to devastating flooding across Southeast Texas, killing 22 people and damaging over 48,000 homes, 70,000 automobiles and…

5. Dec 16, 2001Tornado$2.5 million
   National Weather Service narrative

   An F2 Tornado touched down at the Point Lookout West Estates. There were 2 minor injuries. 15 homes were destroyed, with 15 to 20 other homes receiving major damage. Trees and power lines were down. Reported by the Sheriff's office.

6. Aug 1, 1998Drought, San Jacinto$1.0 million
   National Weather Service narrative

   Drought conditions continue from July. After months of extremely dry and hot weather across SE Texas, relief came late in the month with welcomed rainfall and slightly cooler temperatures. Over 20 people across the region lost their lives due to the extreme heat and property and crop damage averaged $8.3 million per county since May. Locations across the region were finally catching up with rainfall toward the end of the month as the drought was coming to an end. NOTE: CROP AND PROPERTY DAMAGE LISTED HERE ARE FOR THE PERIOD MAY-AUGUST 1998.

7. Nov 6, 2000Thunderstorm Wind$200,000
   National Weather Service narrative

   Damage to several buildings on courthouse square in Coldspring. Several trees down with one tree falling on a store. Damage to roof of a school in Coldspring. Minimal damage to roofs on several homes in Evergreen. Numerous trees and power lines down across county.

8. Feb 18, 2013Tornado$150,000
   National Weather Service narrative

   The tornado produced extensive damage to the roof, garage and front door area of a brick home. An adjacent barn was destroyed. The damage path extended a little over one half mile with downed trees observed along a path on either side of the brick home. A witness from about 200 yards away observed the tornado damaging the home.

9. May 13, 2004Thunderstorm Wind$150,000
10. Apr 29, 2006Tornado$100,000
    National Weather Service narrative

    Tornado in the Coldspring Terrace Subdivision along Lake Livingston. Four injuries in two homes that received major damage.

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

109°F2 times, most recently Sep 4, 2000

All-time low

3°FDec 22, 1989

Warmest night

89°FAug 29, 1982

Coldest day

20°FDec 22, 1989

Wettest day

14.35 inOct 16, 1994

Snowiest day

7.5 inDec 21, 1929

Hottest year

2023mean 72.3°F

Coldest year

1979mean 63.9°F

Wettest year

197978.08 in

Driest year

198821.78 in

Station Conroe (USC00411956), 245 ft elevation, 25.7 miles from the population centre. Daily records from 1897 to October 22, 2026; 96.2% 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 USC00411956.
• 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.