Marana, AZ Tornado History — 12 Tornadoes Since 1950
How many tornadoes has Marana, AZ had?
Marana has had 12 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Marana?
The most recent tornado within 25 miles of Marana was an EF0 on August 13, 2023.
When is tornado season in Marana?
August is historically the peak month for tornadoes near Marana, 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 Marana
The last 20 years of confirmed tornadoes within 25 miles — 4 total, averaging 0.2 per year over this window.
Preliminary tornado reports near Marana since December 29, 2025
These is a preliminary report, not confirmed tornadoes. It has not yet been through an NWS damage survey, and is not counted in the confirmed totals above.
Preliminary reports are revised, merged, and sometimes withdrawn — historically about 23% are consolidated downward once surveys complete. Ratings are omitted until a survey assigns one.
Confirmed records above are complete through December 29, 2025. NOAA publishes the confirmed archive annually, so tornadoes after that date appear here first and move into the totals above once finalized.
Within 25 miles of Marana. Source: NOAA Storm Prediction Center preliminary storm reports, updated daily.
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
Casualties on Record Near Marana
3 fatalities have been recorded within 25 miles of Marana since 1950, across 2 events. 52 injuries have been reported across all events. 1964 was the deadliest year on record.
The deadliest single event was a F2 on August 27, 1964, which caused 2 fatalities along a 0.1-mile track.
Notable Tornadoes Near Marana
About Tornadoes in Marana
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.
Since 1950, the National Weather Service has documented 12 tornadoes within 25 miles of Marana, Arizona. Unlike regions where tornadoes occur predominantly in spring, the area experiences peak tornado activity in August, which has accounted for 5 of the recorded events. This pattern reflects the influence of the North American Monsoon, when moisture surges from the Gulf of California interact with desert heating to produce severe thunderstorms capable of spawning tornadoes.
The majority of tornadoes near Marana have been relatively weak, with 6 rated EF0 and 3 rated EF1 on the Enhanced Fujita scale, which measures tornado intensity based on damage. Two tornadoes reached EF2 strength, and one event remains unrated in historical records. Most of these storms produced narrow damage paths, with maximum widths typically between 10 and 50 yards, though their impacts varied considerably based on what structures or terrain they encountered.
The deadliest tornado in the area's recorded history occurred on August 27, 1964, when an F2 tornado caused 2 fatalities despite traveling only 0.1 miles with a maximum width of 10 yards. The costliest event took place on July 7, 1992, when an F1 tornado carved a 2.8-mile path and generated $2.75 million in property damage. Another significant tornado struck on June 23, 1974, reaching a maximum width of 50 yards—the widest on record for the area—and causing 1 fatality along with $275,000 in damage.
Tornado activity near Marana has been sporadic across the decades, according to data from the NOAA Storm Prediction Center. The 1990s saw the most activity with 5 tornadoes, while the 1960s, 1970s, and 2000s each recorded only a single event. The 2010s and 2020s have each documented 2 tornadoes, with the most recent occurring on August 14, 2023—an EF0 tornado that traveled 0.1 miles with a maximum width of 25 yards and caused no injuries or property damage.