San Marcos, TX Tornado History — 87 Tornadoes Since 1950
How many tornadoes has San Marcos, TX had?
San Marcos has had 87 tornadoes on record within 25 miles since 1950, including 2 strong to violent (EF3+) tornadoes.
When was the most recent tornado near San Marcos?
The most recent tornado within 25 miles of San Marcos was an EF1 on October 24, 2025.
When is tornado season in San Marcos?
May is historically the peak month for tornadoes near San Marcos, with 22 on record. April through June account for 35 of the 87 tornadoes on record near San Marcos.
At a Glance
Recent Tornado Activity Near San Marcos
The last 20 years of confirmed tornadoes within 25 miles — 21 total, averaging 1.1 per year over this window.
What storm spotters reported near San Marcos
One local storm report has been filed within 25 miles of San Marcos and since confirmed into the NOAA archive, the earliest on June 11, 2025 and the most recent on June 11, 2025. It is already counted in the San Marcos totals above; quoted below is the narrative the reporting office filed at the time.
Southwest Hays County Tornado 2 rated EF0. The track of the second tornado was estimated through a combination of information gathered by the survey team and through ra (EWX)
Source: National Weather Service and trained-spotter local storm reports, relayed by the NOAA Storm Prediction Center.
Tornadoes by Decade
Tornadoes by Enhanced Fujita Rating
F0–F5 ratings (pre-2007) are grouped with their EF equivalents. The Enhanced Fujita scale replaced the original Fujita scale in February 2007.
Tornadoes by Month
Have any tornadoes near San Marcos been fatal?
No fatalities are on record within 25 miles of San Marcos from any of the 87 tornadoes since 1950, though 39 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near San Marcos
What the record shows near San Marcos
The 1960s were the busiest decade near San Marcos, with 17 of the 87 confirmed tornadoes within 25 miles; the 2020s have produced 9 so far. The San Marcos record runs from the 1950s to today.
Of the tornadoes rated near San Marcos, 68 reached EF0 or EF1 and 18 reached EF2 or stronger. The most intense on record near San Marcos is rated EF3, of which 2 are logged. A further 1 near San Marcos is unrated — events NOAA logged before a damage survey assigned a scale.
Across the last 20 years San Marcos has averaged 1.1 confirmed tornadoes a year within 25 miles, 21 in total. 2015 was the busiest of them with 5, and 11 of those years passed with none at all.