Bexar County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Bexar County: 3.
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.

Every earthquake of magnitude 4 or more within 50 miles

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.

More event types since 1996

Costliest events since 1996

1. Apr 12, 2016Hail$1.4 billion
   National Weather Service narrative

   A thunderstorm produced 4.5 inch hail near Tezel Rd. and Bandera Rd. in northwestern San Antonio. This tied for the largest hailstone ever reported in Bexar County. The hail storm storm moved across northern Bexar County, crossing the northern half of San Antonio. Damage costs in San Antonio are estimated at $1.36 billion making this the costliest hail storm ever in the state of Texas according to the Insurance Council of Texas. Estimates do not include uninsured or commercial losses which will likely push the losses to near 2 billion, especially when including 2 other hail storms that occurred over the same area of Bexar County at the end of the April. Estimates provided by the…

2. May 6, 2001Hail$120 million
   National Weather Service narrative

   This storm eventually developed into one of the most devastating hail-and-wind storms in the history of Bexar County. Hail in sizes up to to 4 inches, accompanied at times by winds estimated to be over 60 mph, destroyed roofs of hundreds of homes, and severely damaged hundreds of vehicle bodies, as well as breaking thousands of windows in houses and vehicles. The damage was reported to have been the worst in the northwestern part of the city, where hail reached at least 4 inches in diameter. Damages were estimated to reach at least $60,000,000 for homes, and an additional $60,000,000 for cars. Additional severe thunderstorm winds struck the western part of the county just before 8…

3. Jun 12, 2025Flash Flood$23.0 million
   National Weather Service narrative

   Training of thunderstorms with intense rainfall rates produced a swath of 3-8 inches of rain across San Antonio. Several vehicles were swept off the Loop 410 access road into Beitel Creek. There were 11 fatalities in this creek and the surrounding area. Ten people were rescued from the water, and two others were able to get to safety on their own. Damage from the flooding totaled $23 million across Bexar County.

4. Aug 16, 2007Flash Flood$15.0 million
   National Weather Service narrative

   The area of extremely heavy rainfall associated with the remains of Tropical Storm Erin continued to spread northwestward across Bexar County, with a general 4 to 5 inch rain over the county. Totals of up to 8 inches were reported at several locations in the south and west parts of San Antonio as well as between Helotes and Leon Springs. By 1400 CST, most roads in the northwest part of the county were closed. By 1530 CST that afternoon, more than 39 high water rescues were reportedly underway in San Antonio. Water was almost waist-deep at Southcross Boulevard in San Antonio. Floodwaters were so deep and running so swiftly at the San Antonio High School West Campus that they…

5. Oct 17, 1998Flood, Bexar$8.0 million
   National Weather Service narrative

   Flooding along the San Antonio River, Cibolo Creek and Geronimo CreekIn Bexar County, the San Antonio River begins just below Olmos Dam where it merges with spring flow. Two new flood tunnels on the San Antonio River and Apache Creek respectively saved downtown San Antonio and homes and businesses below Brackenridge Golf Course to the old Lone Star Brewery from very serious flooding. At Loop 410 in San Antonio, the San Antonio River crested at 36.2 feet, where flood stage is 20 feet. Several homes just below Loop 410 had 10 feet of water over the slabs. At Elmendorf, the San Antonio crested at 64.6 feet, with flood stage at 35 feet. Flow escaped out of the deep canyon of the…

6. Oct 17, 1998Flash Flood$8.0 million
   National Weather Service narrative

   The Great October FloodIn advance of a very slow-moving upper level trough of low pressure over West Texas, a cold front drifted slowly southeastward into West Central Texas during the evening of Friday, October 16th. Deep moisture was in place across South Central Texas as the two systems approached, being fed at the mid and upper levels by two nearly stationary hurricanes, Madeline near the tip of Baja Mexico, and Lester, anchored just off Acapulco, Mexico, and in the low levels by a strong flow from the Gulf of Mexico. A very moisture-rich environment was in place across South Central Texas as the event developed. Near 3 am CST, with the cold front still west of San Angelo,…

7. Oct 17, 1998Flood, Bexar$8.0 million
   National Weather Service narrative

   Flooding along the Medina River, Olmos Creek, Leon Creek, Helotes Creek, and Salado CreekThe Medina River in Bexar County produced moderate lowland flooding from above Lacoste to above the San Antonio gauge at Highway 281. At Highway 281, it crested at 49.5 feet, where flood stage is 16 feet. The new Dos Rios sewerage plant had several feet of water in it. Several homes also flooded downstream near Losoya. Flooded continued along the Medina until early Monday morning in the Somerset area.At Dresden Drive in San Antonio, Olmos Creek flooded numerous homes above Loop 410 near Lockhill-Selma Street. Downstream, the McAllister Freeway flooded above Olmos Dam. The bottom of the pool is…

8. Apr 25, 2015Thunderstorm Wind$5.0 million
   National Weather Service narrative

   San Antonio Office of Emergency Management reported numerous trees damaged in the Trophy Ridge subdivision. Some minor roof damage also reported. USAA insurance company reported 1000 property and 1000 auto claims in Bexar County during this night due. Damage brought on by strong winds and hail. Monetary damage amounts are an estimate.

9. Mar 28, 2000Hail$5.0 million
   National Weather Service narrative

   A small and short-lived tornado struck just northwest of Leon Valley. It was preceded by winds estimated at 40 to 50 mph, along with heavy rain and large hail. Widespread damage was reported to cars in the Leon Valley due to the very large hail. No significant damage was reported as a result of the small tornado.

10. Jun 22, 1997Flash Flood$3.0 million
    National Weather Service narrative

    The heavy rain Friday night into Saturday afternoon had left South Central Texas soils saturated. The situation worsened Saturday evening into Sunday as heavy rain associated with the upper low pressure system redeveloped over the western Texas Hill Country. Very heavy rains over the Texas Hill Country Saturday night and Sunday morning caused widespread flooding as well as flash flooding across numerous counties. The heavy rains moved into San Antonio Sunday morning and into the Austin area later in the morning. By Sunday afternoon and evening, areas of showers and thunderstorms had diminished over South Central Texas as the upper low moved into North Texas. Late Sunday evening,…

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

111°FSep 5, 2000

All-time low

0°FJan 31, 1949

Warmest night

82°F6 times, most recently Aug 21, 2023

Coldest day

23°F2 times, most recently Dec 22, 1989

Wettest day

11.26 inOct 17, 1998

Snowiest day

13.2 inJan 12, 1985

Hottest year

2024mean 73.3°F

Coldest year

1976mean 66.4°F

Wettest year

197352.28 in

Driest year

202211.51 in

Snowiest season

15.9 in1984-85

Station San Antonio International Airport (USW00012921), 799 ft elevation, 5.1 miles from the population centre. Daily records from 1946 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.

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 USW00012921.
• 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.