Glen Avon, CA Tornado History — 20 Tornadoes Since 1950
How many tornadoes has Glen Avon, CA had?
Glen Avon has had 20 tornadoes on record within 25 miles since 1950.
When was the most recent tornado near Glen Avon?
The most recent tornado within 25 miles of Glen Avon was an EF0 on September 9, 2012.
When is tornado season in Glen Avon?
May is historically the peak month for tornadoes near Glen Avon, 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 Glen Avon
The last 20 years of confirmed tornadoes within 25 miles — 6 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 Glen Avon been fatal?
No fatalities are on record within 25 miles of Glen Avon from any of the 20 tornadoes since 1950, though 5 injuries have been reported. NOAA Storm Prediction Center records.
Notable Tornadoes Near Glen Avon
About Tornadoes in Glen Avon
This overview was written July 28, 2026. The tornado counts and notable-event figures elsewhere on this page reflect the latest data and may differ from this summary.
Glen Avon sits in the Jurupa Valley area of Riverside County, where the Santa Ana River corridor meets the Jurupa Hills in California's Inland Empire — terrain far from the Great Plains tornado belt, but one that still sees occasional touchdowns when Pacific storm systems push inland.
Many of the area's tornadoes have arrived with those cool-season storms. An F1 struck on November 25, 1965, and another F1 followed on March 17, 1977. Weaker F0 touchdowns have come on winter days as well, including January 4, 1978, January 20, 1982, February 8, 1993, and December 21, 2001, along with an early-spring F0 on April 6, 1955.
A notably intense episode arrived in late spring of 2008. On May 22, 2008, an EF2 tornado tracked 2.8 miles with a path up to 75 yards wide, injuring one person and causing $350,000 in property damage. EF0 tornadoes also touched down in the area on May 22 and again on May 23, 2008, making it a busy stretch of severe weather for this part of Riverside County.
More recently, brief EF0 tornadoes were observed on August 12, 2012, and September 9, 2012 — short-lived, late-summer touchdowns of the kind the Inland Empire occasionally produces when monsoonal moisture drifts west of the mountains.