Sunnyvale, CA Tornado History — 9 Tornadoes Since 1950
How many tornadoes has Sunnyvale, CA had?
Sunnyvale has had 9 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Sunnyvale?
The most recent tornado within 25 miles of Sunnyvale was an EF1 on December 14, 2024.
When is tornado season in Sunnyvale?
January is historically the peak month for tornadoes near Sunnyvale, with 2 on record. April through June account for 3 of the 9 tornadoes on record near Sunnyvale.
At a Glance
Recent Tornado Activity Near Sunnyvale
The last 20 years of confirmed tornadoes within 25 miles — 1 total, averaging 0.1 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 Sunnyvale been fatal?
No fatalities are on record within 25 miles of Sunnyvale from any of the 9 tornadoes since 1950, though 8 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near Sunnyvale
What the record shows near Sunnyvale
The 1990s were the busiest decade near Sunnyvale, with 5 of the 9 confirmed tornadoes within 25 miles; the 2020s have produced 1 so far. The Sunnyvale record runs from the 1950s to today.
Of the tornadoes rated near Sunnyvale, 7 reached EF0 or EF1 and 2 reached EF2 or stronger. The most intense on record near Sunnyvale is rated EF2, of which 2 are logged.
Across the last 20 years Sunnyvale has averaged 0.1 confirmed tornadoes a year within 25 miles, 1 in total. 2024 was the busiest of them with 1, and 19 of those years passed with none at all.