Leander

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 Williamson County, the county that contains Leander.

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 Williamson County, the county that contains Leander.

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 Williamson County, the county that contains Leander.

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 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. Sep 24, 2023Hail$300 million
   National Weather Service narrative

   A thunderstorm produced four inch diameter hail in Round Rock. This storm was part of a complex that caused 700 million dollars in hail damage in Texas. The damage in Austin, Georgetown, and Round Rock was the most impactful from this system and totaled upwards of 600 million dollars in damage across Williamson and Travis counties. Thus 300 million dollars of damage is being listed on this Williamson County entry. An article from the Austin American Statesman tells that Round Rock school district estimated losses of 70 million in damages to 62 facilities.

2. May 27, 1997Tornado$70.0 million
   National Weather Service narrative

   The Cedar Park tornado formed around 3:05 pm CST from a different supercell thunderstorm. It first touched down about 3.5 miles north of Cedar Park at a location 0.6 miles south of CR 178 and 1.4 miles east of the intersection of US 183 and CR 178. The initial damage was to trees, however, the ground survey revealed damage nearby to a church and a trucking company. The aerial survey did not reflect this damage as being in line with the damage path. It is quite possible this damage was caused by strong wind near the tornado. The beginning point was in a relatively open area with damage primarily to a few trees and minor shingle damage to one house.The tornado moved…

3. May 27, 1997Tornado$40.0 million
   National Weather Service narrative

   Several eyewitnesses reported that the Jarrell tornado was preceded for a period of 8 to 10 minutes by a series of short-lived very small tornadoes that formed from the same supercell thunderstorm. These touched down, then dissipated in order.The first tornado in Williamson County formed near 2:25 pm CST and built rapidly to F2 strength. It survived for approximately 8 minutes, often returning briefly to a roped and tilted feature before it died. This tornado was followed by a second that formed near 2:35 pm CST. It built quickly into a multi-vortex tornado that appeared to be near F2 strength as well. This dissipated after only 4 minutes. The final tornado from this same…

4. Jul 5, 2025Flash Flood$25.0 million
   National Weather Service narrative

   There was extensive flooding along the San Gabriel River across the county. In Georgetown two apartment complexes were evacuated. Flood waters knocked trees and damaged light poles in San Gabriel Park. Flooding at College St. and W. L. Walden Dr. prompted evacuations of the Georgetown Animal Shelter, VFW Post, Masonic Lodge, Holly Street Village, and the San Gabriel Crisis Center. The S. Austin Ave. bridge was closed. Two RV parks downstream flooded and damaged or destroyed 30 or more RVs many of which were described as unsalvageable. The city of Georgetown removed over 3500 cubic feet of debris for along the river. Across the county there were ten water rescues saving 27 people.…

5. Feb 1, 2023Winter Storm, Williamson$22.6 million
   National Weather Service narrative

   Freezing rain began around 11 AM on January 30 and continued off and on through February 2. By 9:13 PM on January 30 the Emergency Manager reported ice accumulating on the roadway of the 183A toll road overpass at Brushy Creek Rd in Cedar Park. By the end of the event 0.5��� of ice had accumulated in Round Rock, 0.41��� in Hutto, 0.38��� in Jollyville and Taylor, and 0.33��� in Leander. There were multiple accidents across the county. There were also trees and tree branches down around the county and thousands of power outages. The cost of damages was estimated at $22.6 million. The Pedernales Electric Cooperative, headquarters in Johnson City, provides…

6. May 25, 2015Flash Flood$7.0 million
   National Weather Service narrative

   Thunderstorms produced heavy rain that caused flash flooding around the county. Numerous roads were closed including Hairy Man Rd. The Bull Run Creek hike and bike trail was flooded. A 55 year old man died when his vehicle was swept away near CR 143 and Hwy 195 north of Georgetown. 38 homes were destroyed and 57 homes sustained major damage. Losses for infrastructure totaled more than 7 million dollars.

7. Aug 8, 2023Wildfire, Williamson$2.0 million
   National Weather Service narrative

   The Parmer Lane wildfire started on the 8th near Parmer Lane and E. Whitestone Blvd. in Cedar Park. Red Flag conditions were observed with relative humidity as low as low as 20% and winds 10-20 mph with gusts up to 30 mph when the fire started. Two apartment buildings at the Silverado Apartment Complex were destroyed. The American Red Cross assisted 150 displaced apartment units (the number of people affected was unknown). Apartment buildings 9, 10, 11 and 12 were without power. The burned 37 acres before being brought under control on the 10th.

8. Sep 5, 2011Wildfire, Williamson$1.7 million
   National Weather Service narrative

   The Moonglow Wildfire started in Leander on September 5 behind a cold front that brought strong northerly winds to South Central Texas. The fire burned 300 acres and destroyed 11 homes and damaged 9 others.

9. Oct 30, 2013Flash Flood$1.1 million
   National Weather Service narrative

   Across Round Rock and the northern sections of Williamson County, heavy rain fell much of the night with areas reporting up to 10 inches of rain. At the peak of the flooding there were 23 areas closed due to high water. Several homes along Brushy Creek were evacuated. Houses were damaged over the eastern portions along the Highway 79 corridor including Forest Creek, Hutto, and the County Road 123 area. Voluntary evacuations were called for in eastern Round Rock and Hutto. 88 homes were evacuated. Several swift water rescues were performed including 8 vehicle rescues. Overall 19 homes were affected by flooding rains in Williamson County with overall damages hit 1.1 million dollars…

10. Apr 27, 2009Tornado$1.0 million
    National Weather Service narrative

    A NWS storm survey concluded an EF1 tornado with winds estimated at 85 to 95 mph developed three miles WSW of Jonah, moved northeast and dissipated one mile west of Jonah along Hwy 29. Over 20 homes were damaged, mostly minor roof damage due to falling branches and trees. Several out buildings and small storage sheds were destroyed. Three power poles were snapped. One travel trailer was rolled on its side.

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

112°F2 times, most recently Aug 28, 2011

All-time low

−2°FJan 31, 1949

Warmest night

84°FJul 24, 2018

Coldest day

20°FJan 10, 1962

Wettest day

7.55 inNov 15, 2001

Snowiest day

6.5 inJan 30, 1949

Hottest year

2024mean 72.8°F

Coldest year

1940mean 65.9°F

Wettest year

201559.96 in

Driest year

195411.42 in

Snowiest season

8.7 in1984-85

Station Austin-camp Mabry (USW00013958), 670 ft elevation, 18.5 miles from the city centre. Daily records from 1938 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 Williamson 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 USW00013958.
• 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.