Granite Bay, CA Tornado History — 21 Tornadoes Since 1950
How many tornadoes has Granite Bay, CA had?
Granite Bay has had 21 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Granite Bay?
The most recent tornado within 25 miles of Granite Bay was an EF0 on November 18, 2020.
When is tornado season in Granite Bay?
February is historically the peak month for tornadoes near Granite Bay, with 5 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 Granite Bay
The last 20 years of confirmed tornadoes within 25 miles — 9 total, averaging 0.5 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 Granite Bay been fatal?
No fatalities are on record within 25 miles of Granite Bay from any of the 21 tornadoes since 1950. NOAA Storm Prediction Center records.
Notable Tornadoes Near Granite Bay
About Tornadoes in Granite Bay
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.
Granite Bay, California, has experienced 21 documented tornadoes within a 25-mile radius since 1950, according to the NOAA Storm Prediction Center. Unlike the more tornado-prone regions of the central and southeastern United States, California sees relatively infrequent tornado activity, and the events recorded near Granite Bay have been predominantly weak. Of the 21 tornadoes on record, 15 were rated EF0, five reached EF1 intensity, and only one attained EF2 strength. Notably, none of these tornadoes resulted in any fatalities.
Tornado activity in the area has shown an increase in recorded events over recent decades. The 1970s and 1990s each saw two tornadoes, while three occurred in the 1980s. The 2000s brought five events, and the 2010s recorded eight tornadoes, marking the most active decade on record. The 2020s have thus far seen one tornado through the end of available data. This uptick may reflect improvements in detection technology and reporting practices as much as any change in actual storm frequency.
The seasonal pattern near Granite Bay differs markedly from the spring and early summer peak common to much of the nation. February has been the most active month, with five tornadoes recorded, reflecting the influence of Pacific storm systems that can produce brief, weak tornadoes during the cool season. The costliest and longest-tracked tornado occurred on December 24, 2015, an EF1 event that caused $1,000,000 in property damage along a 6.2-mile path with a maximum width of 100 yards. The widest tornado on record was an EF0 on January 11, 2017, which reached 130 yards in width despite traveling only 0.4 miles and causing $25,000 in damage.
The most recent tornado touched down on November 18, 2020, as an EF0 with a narrow 2-yard maximum width along a 4.4-mile path, causing no damage or injuries. The Enhanced Fujita scale, used since 2007, rates tornadoes from EF0 to EF5 based on observed damage to structures and vegetation, with EF0 representing wind speeds of 65–85 mph and EF1 indicating 86–110 mph winds.