Wisconsin

Storm History: Oconto County, Wisconsin

373 episodes, 520 events since 1965

Every storm the National Weather Service has filed in Oconto County, Wisconsin: 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
520
Deaths
2
Injuries
10
Damage
$17 million
Episodes
373

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 Oconto 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
Hail13521$3.2 million
Winter Storm8800$25,000
Tornado5108$12 million
Drought4400
Heavy Snow3700
Flood2800$605,000
Thunderstorm Wind2401$12,000
Blizzard1700$50,000
Ice Storm1300
Flash Flood1300$385,000
Extreme Cold/Wind Chill1300
Cold/Wind Chill1000
Dense Fog1000
High Wind900$23,000
Winter Weather700
Strong Wind700
Heat300
Frost/Freeze300
Lakeshore Flood200$10,000
Excessive Heat200
Dust Devil100$500
Heavy Rain100
Seiche100$5,000
Lightning100$100,000

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.

The strongest tornadoes

Every tornado in Oconto County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Oconto CountyEvery warning in Oconto County since 1986Every county in Wisconsin

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.