PlainHazard

If you are in immediate danger, call 911.

The data below is historical (NOAA Storm Events / FEMA), not a live alert. For current warnings and evacuation orders, check the National Weather Service, Ready.gov, or FEMA.gov.

California · FEMA + NOAA + National Risk Index

Siskiyou County, CA

10 FEMA disaster declarations (2014–2024), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Fire.

10
FEMA declarations
4
Major disasters
89
NRI risk · Relatively Moderate
Fire
Top hazard

The verdict

Siskiyou County ranks in the riskiest 11% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 94% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Relatively Moderate, based on 10 federal disaster declarations recorded since 2014, most often fire, 160% above the national county average of 4.

Riskiest 11%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
10
FEMA declarations vs 4 national county avg
7
fire declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

View my watchlist

How does Siskiyou County compare?

Siskiyou County vs. every U.S. county

FEMA disaster declarations, all-time

10 Top 6% higher than 94% of 2,791 counties

This county 0 30 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-07-25

Siskiyou County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the California county average

0/100100/100California avg89/10089/100
FEMA National Risk Index composite score vs. the California county average

How disaster-prone is Siskiyou County?

Declaration frequency

Siskiyou County, California has recorded 10 FEMA disaster declarations between 2014 and 2024, of which 4 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 1.0 declarations per year across a 10-year record, or roughly 29% above the California county average of 7.8 and 160% above the national county average of 3.8. The dominant disaster type on record is Fire, with 7 of 10 declarations falling under this category.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 89.0/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $57.0M in annualized losses). Social vulnerability reads Relatively High and community resilience Relatively Moderate, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Drought stands out as the sharpest exposure here, rated Relatively High.

Flood exposure & the bottom line

Taken together, these indicators place Siskiyou County at a high relative risk level, its federal disaster history outpaces most of the country, and it is worth pairing that record with forward-looking hazard maps before making insurance or relocation decisions.

Risk Assessment

Risk Level

High

vs. California Avg

+29%

State avg: 7.8

vs. National Avg

+160%

National avg: 3.8

Avg Per Year

1.0

Over 10 years

FEMA NRI 8-hazard radar - Siskiyou County

Siskiyou County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 25, Flood 0, Hurricane 0, Tornado 8, Wildfire 70, Drought 70, Heat Wave 25, Winter Storm 48. Overall composite 31 of 100, classified Moderate. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 31 composite
Siskiyou County NRI risk profile FIPS 06093 · composite 31/100 (Moderate)
How to read this radar

The radar plots Siskiyou County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

10

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

06093

CA state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Fire 7
Hurricane 1
Flood 1
Biological 1

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Fire Management - 6 60.0%

of all 10 declarations

Major Disaster - 4 40.0%

of all 10 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2023 1
2022 1
2021 2
2020 2
2018 1
2014 2

Disaster Declarations

DR# Title Type Incident Date
4750 TROPICAL STORM HILARY DR Hurricane 2023-11-21
4683 SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2023-01-14
5450 MILL FIRE FM Fire 2022-09-02
5393 LAVA FIRE FM Fire 2021-06-29
4569 WILDFIRES DR Fire 2020-10-16
5361 SLATER FIRE FM Fire 2020-09-09
4482 COVID-19 PANDEMIC DR Biological 2020-03-22
5250 KLAMATHON FIRE FM Fire 2018-07-05
5079 BOLES FIRE FM Fire 2014-09-15
5068 OREGON GULCH FIRE FM Fire 2014-08-02

Storm Events in California

Storm Type Events Fatalities Injuries Property Damage
High Wind 4,876 14 30 $229.3M
Flood 3,682 33 31 $991.0M
Heavy Snow 2,071 6 0 $1.6M
Drought 2,039 0 0 $0
Dense Fog 1,820 59 164 $3.5M

Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 89.0/100

Expected Annual Loss

Relatively Moderate

$57.0M/year

Social Vulnerability

Relatively High

Community Resilience

Relatively Moderate

Hazard Risk Breakdown

Drought Relatively High
Wildfire Relatively High
Volcanic Activity Relatively High
Landslide Relatively Moderate
Earthquake Relatively Low
Avalanche Relatively Moderate
Heat Wave Relatively Low
Winter Weather Relatively Moderate
Lightning Relatively Low
Hail Very Low
Cold Wave Very Low
Strong Wind Very Low
Tornado Very Low

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in California

Frequently Asked Questions

How many natural disasters has Siskiyou County, California had?
Siskiyou County, California has received 10 FEMA disaster declarations from 2014 to 2024. Of these, 4 were major disaster declarations.
What is the most common disaster type in Siskiyou County?
The most common disaster type in Siskiyou County is Fire, with 7 declarations. Other disaster types include Hurricane (1), Flood (1), Biological (1).
How does Siskiyou County's disaster risk compare to the California average?
Siskiyou County has 10 disaster declarations, which is 29% higher than the California county average of 7.8 declarations. Compared to the national county average of 3.8, it is 160% higher.
How many major FEMA disaster declarations has Siskiyou County received?
Siskiyou County has received 4 major disaster declarations, representing 40% of all 10 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in California?
The most common storm types in California include High Wind (4,876 events), Flood (3,682 events), Heavy Snow (2,071 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Siskiyou County?
The most active year for disaster declarations in Siskiyou County was 2014, with 2 declarations. The county has FEMA disaster data spanning 2014 to 2024.
What is the overall disaster risk level for Siskiyou County?
Siskiyou County has recorded 10 FEMA disaster declarations, a volume FEMA data classifies as high-risk, well above what most U.S. counties see over the same period.
What is the FEMA National Risk Index score for Siskiyou County?
According to the FEMA National Risk Index, Siskiyou County, California has an overall risk score of 89.0 out of 100 (Relatively Moderate). The county's social vulnerability rating is Relatively High and community resilience is Relatively Moderate. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $57.0M in annualized losses.
Which natural hazard poses the greatest risk to Siskiyou County?
Based on FEMA NRI data, the highest-risk natural hazard in Siskiyou County is Drought (risk rating: Relatively High). Other significant hazards include Wildfire (Relatively High) and Volcanic Activity (Relatively High). These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015–2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Siskiyou County

Siskiyou County, CA runs 29% above the California county average for federal disaster declarations (10 vs 8), a high historical load overall.

  • Its most common federal declaration type is fire management (6 of 10) - know the hazards most likely here before they happen. California overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.