Minnesota

Storm History: Koochiching County, Minnesota

376 episodes, 466 events since 1955

Every storm the National Weather Service has filed in Koochiching County, Minnesota: 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
466
Deaths
2
Injuries
5
Damage
$5.8 million
Episodes
376

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 Koochiching 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
Hail14900$3.0 million
Tornado5625$300,000
Extreme Cold/Wind Chill5500
Thunderstorm Wind5100$3,000
Drought4800
Heavy Snow4600
Winter Storm1300
Cold/Wind Chill1000
Ice Storm900
Blizzard900
Lightning500$26,000
Flash Flood500
Flood500$2.4 million
Winter Weather300
Strong Wind100
Lakeshore Flood100

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 Koochiching County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Koochiching CountyEvery warning in Koochiching County since 1986Every county in Minnesota

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.