Colorado

Storm History: Grand County, Colorado

564 episodes, 1,114 events since 1960

Every storm the National Weather Service has filed in Grand County, Colorado: 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
1,114
Deaths
32
Injuries
62
Damage
$167 million
Episodes
564

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 Grand 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
Winter Storm49321
Winter Weather17303
High Wind14302
Heavy Snow13600
Blizzard4600
Avalanche432821
Flash Flood17010$155,000
Thunderstorm Wind1500
Hail15024$205,000
Tornado800$3,000
Cold/Wind Chill800
Extreme Cold/Wind Chill600
Drought400
Wildfire420$167 million
Lightning101
Dust Storm100
Strong Wind100

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 Grand CountyEvery warning in Grand County since 1986Every county in Colorado

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.