California

Storm History: Mariposa County, California

268 episodes, 617 events since 1972

Every storm the National Weather Service has filed in Mariposa County, California: 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
617
Deaths
9
Injuries
8
Damage
$23 million
Episodes
268

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 Mariposa 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
Flood9700$275,000
Flash Flood9500$5.3 million
Debris Flow8620$16,000
Drought7400
High Wind4100$40,000
Heavy Snow4000
Excessive Heat3100
Tornado2720$2.9 million
Wildfire2410$14 million
Frost/Freeze2400
Heat2000
Winter Storm1310$20,000
Heavy Rain1222$4,000
Winter Weather1100
Lightning906$50,000
Hail710$1,000
Thunderstorm Wind600$197,000

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 Mariposa CountyEvery warning in Mariposa County since 1986Every county in California

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.