Trinity County, California severe weather history spans 72 recorded events between 1987 and 2025. The dominant hazard is heavy rain, accounting for 50.0% of all recorded events. It ranks #2,985 nationally and #44 in California.
72
Recorded events
0
Direct deaths
0
Direct injuries
$12.8M
Property damage
The record
What the Trinity County, California severe weather history record shows
Across the archive, Trinity County, California severe weather history averages 1.9 recorded events a year. The busiest stretch on record is the 2020s, with 30 events logged in that decade alone. Roughly 1 events fall before 1990 and 71 from 1990 onward — a gap that reflects the expansion of NOAA reporting practice as much as the weather itself.
The costliest is wildfire, with $4.8M in reported property damage. In total, 6 distinct hazard types appear in this county archive, each listed with its own dated record below.
By hazard type
Every hazard type recorded in Trinity County
| Hazard | Events | Deaths | Damage | Max | Span |
|---|---|---|---|---|---|
| Heavy Rain | 36 | 0 | $4.8M | 0 | 2017–2025 |
| Hail | 21 | 0 | $0 | 1.5 | 1987–2025 |
| Wildfire | 5 | 0 | $4.8M | 3740 | 1999–2003 |
| Flood | 4 | 0 | $0 | 0 | 1996–2021 |
| Thunderstorm Wind | 3 | 0 | $30K | 70 | 1992–2021 |
| Flash Flood | 3 | 0 | $3.2M | 0 | 1996–2022 |
Decade by decade
Trinity County, California 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
An atmospheric river aided in heavy rain development across the River Complex burn scar. One or possibly more debris flows occurred as a result. Removal, protective measures, and repair costs from this debris flow are estimated to be $3.2 million.
A thunderstorm set up over the a portion of the 2021 River Complex Burn Scar and caused a debris flow as reported by Trinity County OES on Coffee Creek on 2 August. The debris flow caused Coffee Creek Road to be unpassable. A Flash Flood Warning was issued shortly after 03/0110Z.
A thunderstorm impacted Big Bar and produced a hail event that lasted for 30 minutes. The estimated hail size was as large as a golf ball. The hail covered the ground to a depth of 2 inches with drifts up to 6 inches deep.
Context
Risk, population and federal disasters
Relatively Low
FEMA NRI risk rating
15,860
Population (ACS)
$326K
Median home value
32
Federal declarations
| Declared | Incident | Title | Type |
|---|---|---|---|
| Apr 3, 2023 | Severe Storm | SEVERE WINTER STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Mar 10, 2023 | Flood | SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | EM |
| Jan 14, 2023 | Flood | SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES | DR |
| Aug 24, 2021 | Fire | WILDFIRES | DR |
| Aug 17, 2021 | Fire | MONUMENT FIRE | FM |
| Aug 22, 2020 | Fire | WILDFIRES | DR |
Quick answers
Frequently asked
How many severe weather events have been recorded in Trinity County, California?
72 events are on record between 1987 and 2025, causing 0 direct deaths and $12.8M in property damage.
What is the most common severe weather hazard in Trinity County?
Heavy Rain, with 36 recorded events — 50.0% of everything in the archive for this county.
How many federal disaster declarations cover Trinity County?
32 federal disaster declarations from FEMA include Trinity County, each tied to a specific incident period.
How risky is Trinity County compared with the rest of the country?
FEMA's National Risk Index rates Trinity County as relatively low risk, placing it in the 79 percentile of its state for expected annual loss.
Where does the Trinity County, California 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
- Tehama County 139
- Tulare County 474
- Sutter County 33
- Tuolumne County 66
- Stanislaus County 80
- Ventura County 169
Cite this page
“Trinity County, California.” Severe Weather History. severeweatherhistory.com/county/california/trinity-county/ · Data: NOAA/NCEI, FEMA, U.S. Census — public domain.