San Tan Valley, AZ Tornado History — 27 Tornadoes Since 1950
How many tornadoes has San Tan Valley, AZ had?
San Tan Valley has had 27 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near San Tan Valley?
The most recent tornado within 25 miles of San Tan Valley was an EF0 on October 16, 2022.
When is tornado season in San Tan Valley?
July is historically the peak month for tornadoes near San Tan Valley, with 5 on record. April through June account for 4 of the 27 tornadoes on record near San Tan Valley.
At a Glance
Recent Tornado Activity Near San Tan Valley
The last 20 years of confirmed tornadoes within 25 miles — 5 total, averaging 0.3 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 San Tan Valley been fatal?
No fatalities are on record within 25 miles of San Tan Valley from any of the 27 tornadoes since 1950, though 3 injuries have been reported, according to NOAA Storm Prediction Center records.
Notable Tornadoes Near San Tan Valley
What the record shows near San Tan Valley
The 1970s were the busiest decade near San Tan Valley, with 8 of the 27 confirmed tornadoes within 25 miles; the 2020s have produced 1 so far. The San Tan Valley record runs from the 1950s to today.
Of the tornadoes rated near San Tan Valley, 26 reached EF0 or EF1 and 1 reached EF2 or stronger. The most intense on record near San Tan Valley is rated EF2, of which 1 is logged.
Across the last 20 years San Tan Valley has averaged 0.3 confirmed tornadoes a year within 25 miles, 5 in total. 2019 was the busiest of them with 3, and 17 of those years passed with none at all.