Arizona

Storm History: Graham County, Arizona

418 episodes, 665 events since 1958

Every storm the National Weather Service has filed in Graham County, Arizona: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
665
Deaths
44
Injuries
4
Damage
$22 million
Episodes
418

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Graham County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Drought21400
Flash Flood8211$7.6 million
Excessive Heat68200
Thunderstorm Wind5900$489,000
Wildfire5903$1.4 million
Winter Storm5500$72,000
Hail2200$98,000
Heavy Snow2100
Heat21180
High Wind1500$80,000
Dust Storm1200$39,000
Tornado1000$13,000
Flood600$22,000
Extreme Cold/Wind Chill400$1.3 million
Strong Wind400$11 million
Frost/Freeze400$25,000
Cold/Wind Chill440
Winter Weather310$15,000
Heavy Rain100$10,000
Blizzard100$20,000

The deadliest

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Graham CountyEvery warning in Graham County since 1986Every county in Arizona

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.