Rosemont, CA Tornado History — 29 Tornadoes Since 1950
How many tornadoes has Rosemont, CA had?
Rosemont has had 29 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Rosemont?
The most recent tornado within 25 miles of Rosemont was an EF0 on January 14, 2023.
When is tornado season in Rosemont?
February is historically the peak month for tornadoes near Rosemont, with 7 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 Rosemont
The last 20 years of confirmed tornadoes within 25 miles — 15 total, averaging 0.8 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 Rosemont been fatal?
No fatalities are on record within 25 miles of Rosemont from any of the 29 tornadoes since 1950. NOAA Storm Prediction Center records.
Notable Tornadoes Near Rosemont
About Tornadoes in Rosemont
This overview was written April 23, 2026. The tornado counts and notable-event figures elsewhere on this page reflect the latest data and may differ from this summary.
Rosemont, California has experienced 29 documented tornadoes within a 25-mile radius since 1950, according to the NOAA Storm Prediction Center. The vast majority of these events have been weak, with 23 rated EF0 on the Enhanced Fujita scale, which measures tornado intensity from EF0 (weakest) to EF5 (strongest). Five tornadoes reached EF1 intensity, and only one attained EF2 strength. Notably, no tornadoes in this area have resulted in fatalities on record.
Tornado activity near Rosemont has increased in recent decades. The 1970s and 1980s saw relatively few events, with two and four tornadoes respectively. Activity gradually increased through the 1990s and 2000s, then rose more sharply in the 2010s with ten recorded tornadoes. The current decade has recorded four events through 2023. February stands out as the peak month for tornado occurrence in the area, accounting for six of the 29 total events.
The costliest and longest-tracked tornado on record occurred on December 24, 2015, when an EF1 tornado carved a 6.2-mile path with a maximum width of 100 yards, causing $1,000,000 in property damage but no injuries. The widest tornado reached 400 yards across on November 8, 2022, though this EF0 event caused no reported damage along its 0.8-mile track. The most recent tornado touched down on January 14, 2023, as an EF0 that traveled 0.3 miles with a 50-yard width and caused $25,000 in property damage.
California's tornado climatology differs significantly from the Great Plains, where tornadoes typically peak in spring and early summer. The concentration of events in winter months near Rosemont reflects the region's dependence on Pacific storm systems and atmospheric conditions that favor weaker, shorter-lived tornadoes rather than the intense supercell thunderstorms common in other parts of the country.