Schertz

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond this area.
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.

Flood insurance figures are for Guadalupe County, the county that contains Schertz.

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 in Guadalupe County, the county that contains Schertz.

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.

The drought index is for Guadalupe County, the county that contains Schertz.

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 city centre.
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. Oct 17, 1998Flood, Guadalupe$30.0 million
   National Weather Service narrative

   Flooding along the Guadalupe RiverThe Guadalupe River at New Braunfels crested at 35.1 feet, with flood stage at 7 feet. This was over three feet higher than the disastrous flood of May 12, 1972. Homes were destroyed, moved downstream, or severely damaged from just below Sattler, near the Bear Creek confluence, across the remainder of the county. Homes along the entire reach were flooded well away from the channel, in areas that never flooded before. Along River Road, numerous autos, RVs, and homes were strewn along the flood plain. Recreational camps and outfitters headquarters buildings were destroyed. Homes near Common Street in New Braunfels had slabs as low as 12.5 feet.…

2. Jun 9, 2010Flood$10.0 million
   National Weather Service narrative

   A flood wave went down the Guadalupe River and affect homes along the river from New Braunfels down to Seguin. Property damage including flooded homes, trailers, vehicles, and boats, was seen along the banks of the river including areas around Lake Dunlap and Lake McQueeney. A total of 231 homes were damaged in Guadalupe County along the Guadalupe River. No damage estimate was available.

3. Oct 17, 1998Flash Flood$5.0 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,…

4. Oct 17, 1998Flood, Guadalupe$5.0 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…

5. Jul 5, 2025Flash Flood$2.5 million
   National Weather Service narrative

   Thunderstorms produced heavy rain while slowly moving west across Guadalupe County. Rainfall totals of 4 to 7 inches were recorded with radar estimated totals as high as 9 inches in the Seguin area. The high rain rates caused flash flooding of low-lying and poor drainage areas, leading to at least a dozen water rescues and numerous road closures throughout the city and along I-10. Rapid rises were reported along Walnut and Geronimo Creek. 3 businesses and 2 homes were flooded with 6 to 12 inches of water. The worst flooding was experienced along US-90 Alternate where widespread inundation was observed. Several city parks and recreational facilities sustained damage. Flooding…

6. Mar 19, 2002Thunderstorm Wind$500,000
   National Weather Service narrative

   High winds across the county caused widespread damage to homes, trees and outbuildings. Damage in the south part of the county was more spotty than over the north part. An anemometer at a school weather network in Seguin measured the wind gusts at 59 knots. Near Zorn, the high winds took sections of roofs off homes, and rolled and damaged several homes and mobile homes. One mobile home had been rolled over a truck and was completely destroyed. Close inspection of the damage revealed a divergent, fan-shaped path of damage with the strongest damage in the center portion where the mobile home was destroyed, and lesser damage on both sides. To the left, another mobile home was moved,…

7. Jul 20, 2007Flash Flood$500,000
   National Weather Service narrative

   Widespread 3 to 4 inch rainfall was reported over the county, with up to 8 inches in the area from Zorn to Seguin to McQueeny. Widespread severe flooding was reported, with damage to more than a dozen homes. Nearly all rural roads in northwest part of county were closed, including SH46 and SH123.

8. Jun 22, 1997Flash Flood$300,000
   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,…

9. Jun 9, 2004Flash Flood$250,000
   National Weather Service narrative

   Storms dropped between 2 and 3 inches of rain over the western part of Guadalupe County, with up to 6 inches around Marion. Many of the roads near Cibolo Creek were closed due to flash flooding. Emergency responders reacted to two flooded cars in Santa Clara Creek in Cibolo. Dozens of citizens were evacuated from their homes in Glen Cove subdivision. Fifteen of the homes received damage. Around a dozen vehicle high water rescues were made.

10. Jul 18, 2009Lightning$100,000
    National Weather Service narrative

    Lightning struck a house and caused significant damage due to a resulting fire.

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, 14.1 miles from the city centre. Daily records from 1946 to October 27, 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.

Declarations for Guadalupe County.

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.

• 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.