Washington

Storm History: San Juan County, Washington

126 episodes, 127 events since 1996

Every storm the National Weather Service has filed in San Juan County, Washington: 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
127
Deaths
1
Injuries
4
Damage
$5.2 million
Episodes
126

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 San Juan 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
High Wind9300$2.7 million
Heavy Snow1314$1.0 million
Winter Storm300
Winter Weather300
Drought200
Heavy Rain200$10,000
Heat200
Ice Storm100
Storm Surge/Tide100$10,000
Thunderstorm Wind100$25,000
Flash Flood100$1.0 million
Blizzard100
Coastal Flood100
Funnel Cloud100
Avalanche100
Flood100$475,000

The deadliest

The costliest

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

Every episode, newest first

More

Tornadoes in San Juan CountyEvery warning in San Juan County since 1986Every county in Washington

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.