San Dimas, CA Tornado History — 25 Tornadoes Since 1950
How many tornadoes has San Dimas, CA had?
San Dimas has had 25 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near San Dimas?
The most recent tornado within 25 miles of San Dimas was an EF0 on March 13, 2025.
When is tornado season in San Dimas?
March is historically the peak month for tornadoes near San Dimas, with 8 on record. April through June account for 3 of the 25 tornadoes on record near San Dimas.
At a Glance
Recent Tornado Activity Near San Dimas
The last 20 years of confirmed tornadoes within 25 miles — 3 total, averaging 0.1 per year over this window.
What storm spotters reported near San Dimas
2 local storm reports have been filed within 25 miles of San Dimas and since confirmed into the NOAA archive, the earliest on May 9, 2025 and the most recent on December 25, 2025. They are already counted in the San Dimas totals above; quoted below is the narrative each reporting office filed at the time.
The National Weather Service conducted a storm survey in the neighborhood of Boyle Heights in Los Angeles County... CA for damage associated with a low-topped mini supe (LOX)
[Landspout] Time of occurrence is approximate. Dust devil did damage to a carport. (SGX)
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 Dimas been fatal?
No fatalities are on record within 25 miles of San Dimas from any of the 25 tornadoes since 1950, though 6 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near San Dimas
What the record shows near San Dimas
The 1980s were the busiest decade near San Dimas, with 6 of the 25 confirmed tornadoes within 25 miles; the 2020s have produced 3 so far. The San Dimas record runs from the 1950s to today.
Of the tornadoes rated near San Dimas, 24 reached EF0 or EF1 and 1 reached EF2 or stronger. The most intense on record near San Dimas is rated EF2, of which 1 is logged.
Across the last 20 years San Dimas has averaged 0.1 confirmed tornadoes a year within 25 miles, 3 in total. 2023 was the busiest of them with 2, and 18 of those years passed with none at all.