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San Juan County; Lowlands of Western Whatcom County; Port Townsend Area; Island County
San Juan County, Washington severe weather history spans 4 recorded events between 2001 and 2021. The dominant hazard is heavy rain, accounting for 50.0% of all recorded events. It ranks #3,193 nationally and #39 in Washington.
4
Recorded events
0
Direct deaths
0
Direct injuries
$510K
Property damage
The record
What the San Juan County, Washington severe weather history record shows
Across the archive, San Juan County, Washington severe weather history averages 0.2 recorded events a year. The busiest stretch on record is the 2000s, with 2 events logged in that decade alone.
The costliest is flood, with $475K in reported property damage. In total, 3 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in San Juan County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Heavy Rain | 2 | 0 | $10K | 0 | 2001–2015 |
| Thunderstorm Wind | 1 | 0 | $25K | 43 | 2004–2004 |
| Flood | 1 | 0 | $475K | 0 | 2021–2021 |
Decade by decade
San Juan County, Washington severe weather history by decade
Reporting practice changed over time — early decades are undercounted, not calmer.
From the record
What the reports say
Written by National Weather Service staff at the time of the event · public domain
The rain culminated in a rushing torrent of water down the sidewalks and pooling on First Street. Cars were up to their bumpers in water, and about five inches of rain water pooled in King���s Market, which had to close temporarily in order to remove the water.
Context
Risk, population and federal disasters
Very Low
FEMA NRI risk rating
18,478
Population (ACS)
$799K
Median home value
12
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Jan 5, 2022 | Flood | SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Apr 23, 2020 | Flood | SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Mar 22, 2020 | Biological | COVID-19 PANDEMIC | DR |
| Mar 13, 2020 | Biological | COVID-19 | EM |
| Feb 14, 2007 | Severe Storm | SEVERE WINTER STORM, LANDSLIDES, AND MUDSLIDES | DR |
| May 17, 2006 | Severe Storm | SEVERE STORMS, FLOODING, TIDAL SURGE, LANDSLIDES, AND MUDSLIDES | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in San Juan County, Washington?
4 events are on record between 2001 and 2021, causing 0 direct deaths and $510K in property damage.
What is the most common severe weather hazard in San Juan County?
Heavy Rain, with 2 recorded events — 50.0% of everything in the archive for this county.
How many federal disaster declarations cover San Juan County?
12 federal disaster declarations from FEMA include San Juan County, each tied to a specific incident period.
How risky is San Juan County compared with the rest of the country?
FEMA's National Risk Index rates San Juan County as very low risk, placing it in the 35 percentile of its state for expected annual loss.
Where does the San Juan County, Washington severe weather history data come from?
Every figure is drawn from United States federal public-domain records: NOAA/NCEI Storm Events for the event archive, NOAA SPC SVRGIS for mapped tornado paths, FEMA for disaster declarations and risk ratings, and the U.S. Census for population context. Dates are shown in UTC and recent entries may still be revised by NOAA.
Nearby
Neighbouring counties
- Pierce County 34
- Skagit County 16
- Pend Oreille County 87
- Skamania County 11
- Pacific County 27
- Snohomish County 53
Cite this page
“San Juan County, Washington.” Severe Weather History. severeweatherhistory.com/county/washington/san-juan-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.