South San Jose Hills, CA Tornado History — 53 Tornadoes Since 1950
How many tornadoes has South San Jose Hills, CA had?
South San Jose Hills has had 53 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near South San Jose Hills?
The most recent tornado within 25 miles of South San Jose Hills was an EF0 on March 13, 2025.
When is tornado season in South San Jose Hills?
January is historically the peak month for tornadoes near South San Jose Hills, with 11 on record. Spring through early summer (April–June) generally sees the highest activity across most of the central and southern United States.
At a Glance
Recent Tornado Activity Near South San Jose Hills
The last 20 years of confirmed tornadoes within 25 miles — 7 total, averaging 0.3 per year over this window.
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 South San Jose Hills been fatal?
No fatalities are on record within 25 miles of South San Jose Hills from any of the 53 tornadoes since 1950, though 19 injuries have been reported. NOAA Storm Prediction Center records.
Notable Tornadoes Near South San Jose Hills
About Tornadoes in South San Jose Hills
This overview was written July 29, 2026. The tornado counts and notable-event figures elsewhere on this page reflect the latest data and may differ from this summary.
South San Jose Hills lies in the eastern San Gabriel Valley of Los Angeles County, and its tornado history runs against the familiar Great Plains calendar: tornadoes here have arrived chiefly with the Pacific storm systems of the cooler months, from late autumn through early spring.
On November 7, 1966, an F2 tornado tracked 10.3 miles on a path about 50 yards wide, injuring 10 people and causing $275,000 in property damage. Another F2 struck on November 9, 1982, cutting a path 10 miles long and up to 1,300 yards wide and producing $2,750,000 in property damage, with weaker F0 touchdowns noted in the area that same day.
More recent activity has kept to the same cool-season rhythm. An EF1 touched down on January 19, 2010, and an EF0 followed on December 12, 2014. The stormy winter and spring of 2023 brought an EF0 on February 23, an EF1 on March 22, and further EF0 touchdowns on May 4. Most recently, an EF0 tornado touched down on March 13, 2025 — a reminder that even weak tornadoes remain a recurring cool-season hazard for this corner of the San Gabriel Valley.