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Maryland · FEMA + NOAA + National Risk Index

Montgomery County, MD

21 FEMA disaster declarations (1971-2026), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Snowstorm.

21
FEMA declarations
14
Major disasters
92
NRI risk · Relatively Moderate
Snowstorm
Top hazard

The verdict

Two federal records point in the busier direction for Montgomery County. Its 21 FEMA declarations are 7% above the Maryland county mean and exceed the count for 52% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 8%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 8%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
21
FEMA declarations vs 21 national county avg
775
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Major Disaster (DR) and Emergency (EM) records; an EM authorizes a narrower set of federal assistance than a DR.

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FEMA OpenFEMA declaration desk

County FIPS 24031 · Montgomery County 21 declarations · rank 1414/3,266

DECL-HEAVY · MAJOR-MID · RANK-LOWER · PHOTO-FINISH · NRI-MID · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-HEAVY 21
  • MAJOR-MID 67%
  • RANK-LOWER #1,414
  • PHOTO-FINISH Montgomery
  • NRI-MID 92
  • ACT-HIGH High
  • TYPE-LEAD Snowstorm
  • VS-ST-ABOVE +7%

Nearest declaration peer: Montgomery, IN (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Maryland state profile

Montgomery County in the declaration-count neighbourhood

FEMA declaration records among Montgomery County and nearest peers by total count

declarations

What this shows Montgomery County carries 21 FEMA declaration records, ranked 1414 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

How Montgomery County's FEMA declaration count compares nationally

Montgomery County vs. all counties in this dataset

FEMA disaster declarations, all-time · Montgomery County

21 Top 48% higher than 52% of 3,266 counties

This county 0 90 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 · 2026-08-25

Montgomery County's FEMA Risk Index score

0/100100/100Maryland avg60/10091.7/100
FEMA National Risk Index composite score vs. the Maryland county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Montgomery County is led by Riverine Flooding (about $71.0M Expected Annual Loss, Historical Loss Ratio Relatively Moderate), while Winter Weather carries the highest National Risk Index rating (Very High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Montgomery County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 775 claims and $4.8M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $6.1K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Montgomery County's 21 federal records stand 7% above the Maryland county mean of 19.6. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 91.7/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $126.4M in annualized losses). Social vulnerability reads Very Low and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Winter Weather stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at an average of 12 times per year here, based on 229 historical events on record.

60 /100

Historical Activity Index

High historical activity

Montgomery County, MD · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) High
15/30

21 OpenFEMA declarations, full ingest window (1.0x national county average)

County Disaster Density High
13/25

21 declarations (1.1x state county average of 20)

Major Disaster Share High
17/25

14 of 21 declarations are major disasters (67%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Montgomery County

FEMA NRI 8-hazard radar - Montgomery County

Montgomery County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 48, Flood 70, Hurricane 48, Tornado 48, Wildfire 8, Drought 48, Heat Wave 70, Winter Storm 92. The simple mean of these eight displayed scores is 54 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 54 8-hazard mean
Montgomery County NRI risk profile FIPS 24031 · displayed-hazard mean 54/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

21

Above median

Major Disaster share

67%

Major-heavy

NRI risk score

92

Relatively Moderate

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Montgomery County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Winter Weather Very High an average of 12 times per year
Heat Wave Relatively High 5.3 modeled event-days per year
Strong Wind Relatively High an average of 8.2 times per year
Hail Relatively High an average of 4 times per year
Riverine Flooding Relatively High an average of 5.5 times per year
Hurricane Relatively Moderate roughly once every 10 years
Earthquake Relatively Moderate roughly once every 916 years
Lightning Relatively High an average of 39 times per year
Cold Wave Relatively Moderate an average of 1.6 times per year
Drought Relatively Moderate 4 modeled event-days per year
Tornado Relatively Moderate roughly once every 3 years
Landslide Relatively Low roughly once every 2 years
Ice Storm Relatively Moderate roughly once every 2 years
Wildfire Very Low roughly once every 38,896 years
Coastal Flooding Very Low roughly once every 100 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Snowstorm 5
Hurricane 5
Severe Storm 5
Flood 3
Biological 2
Winter Storm 1

What Snowstorm declarations mean here

Snowstorm is the most frequent declaration type on Montgomery County's record, 24% of its declarations. Snow-related declarations work on a narrower basis than most other hazards: they are generally issued to reimburse the cost of snow removal and emergency protective measures, rather than to repair destroyed property.

The qualifying test is unusual too. FEMA assesses snowfall against record levels for the affected area, so the same storm total can qualify in a county where it is historically extreme and not qualify a few hundred miles north where it is an ordinary winter. A low snowstorm declaration count is therefore not evidence of mild winters.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

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

Major Disaster - 14 66.7%

of all 21 declarations

Emergency - 7 33.3%

of all 21 declarations

FEMA Declarations Timeline

Year Declarations
2026 1
2020 2
2016 1
2013 2
2012 1
2011 1
2010 2
2006 1
2005 1
2003 2
2000 1
1996 1
1993 1
1989 1
1976 1
Show 2 earlier declaration years
1972 1
1971 1

Disaster Declarations

How the 21 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 21 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
3634 SEVERE WINTER STORM EM Winter Storm 2026-01-24
4491 COVID-19 PANDEMIC DR Biological 2020-03-26
3430 COVID-19 EM Biological 2020-03-13
4261 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2016-03-04
4091 HURRICANE SANDY DR Hurricane 2012-11-20
3349 HURRICANE SANDY EM Hurricane 2012-10-28
4075 SEVERE STORMS AND STRAIGHT-LINE WINDS DR Severe Storm 2012-08-02
3335 HURRICANE IRENE EM Hurricane 2011-08-27
1910 SEVERE WINTER STORMS AND SNOWSTORMS DR Snowstorm 2010-05-06
1875 SEVERE WINTER STORM AND SNOWSTORM DR Snowstorm 2010-02-19
1652 SEVERE STORMS, FLOODING, AND TORNADOES DR Severe Storm 2006-07-02
3251 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
1492 HURRICANE ISABEL DR Hurricane 2003-09-19
3179 SNOW EM Severe Storm 2003-03-14
1324 SEVERE WINTER STORM DR Severe Storm 2000-04-10
1081 BLIZZARD OF 96 (SEVERE SNOW STORM) DR Snowstorm 1996-01-11
3100 SEVERE SNOWFALL & WINTER STORM EM Snowstorm 1993-03-16
839 SEVERE STORMS & HIGH WINDS DR Severe Storm 1989-08-28
489 HEAVY RAINS & FLOODING DR Flood 1975-10-04
341 TROPICAL STORM AGNES DR Flood 1972-06-23
Show 1 earlier declaration records
DR# Title Type Incident Date
309 SEVERE STORMS & FLOODING DR Flood 1971-08-17

Storm Events in Maryland

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Montgomery County.

Storm Type Events Fatalities Injuries Property Damage
Thunderstorm Wind 3,959 6 43 $102.0M
Winter Weather 1,341 4 26 $95.0K
Flood 1,089 1 0 $1.4M
Flash Flood 790 9 4 $96.3M
Dense Fog 513 0 0 $0

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

NFIP Flood Insurance Claims

Total Claims

775

Total Paid

$4.8M

Avg Per Claim

$6.1K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 91.7/100

Expected Annual Loss

Relatively Moderate

$126.4M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Winter Weather Very High
Heat Wave Relatively High
Strong Wind Relatively High
Hail Relatively High
Riverine Flooding Relatively High
Hurricane Relatively Moderate
Earthquake Relatively Moderate
Lightning Relatively High
Cold Wave Relatively Moderate
Drought Relatively Moderate
Tornado Relatively Moderate
Landslide Relatively Low
Ice Storm Relatively Moderate
Wildfire Very Low
Coastal Flooding Very Low

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

The model's sharpest exposure here: Winter Weather

Winter Weather in the model means the accumulation of snow and cold that disrupts rather than destroys: road closures, roof loads, burst pipes and lost heating. Its costs land heavily on transport and on households least able to absorb an interruption.

For Montgomery County the two measures on this page point the same way: Winter Weather is the county's highest-rated modeled hazard (Very High), and Snowstorm declarations also lead its federal record. Where the model and the declaration history agree, the reading is comparatively straightforward, the hazard is both expected and repeatedly realised.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Montgomery County's closest FEMA peer: Arlington County, VA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Montgomery County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Montgomery County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Montgomery County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Understanding disaster data

Montgomery County's NFIP claims file (775 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Montgomery County?
The most common disaster type in Montgomery County is Snowstorm, with 5 declarations. Other disaster types include Hurricane (5), Severe Storm (5), Flood (3).
How does Montgomery County's FEMA declaration record compare with the Maryland average?
FEMA lists 21 declaration records for Montgomery County. That is 7% above the Maryland county mean of 19.6. Its count is also 1% above the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Montgomery County received?
Montgomery County has received 14 major disaster declarations, representing 67% of all 21 disaster declarations.
How many flood insurance claims has Montgomery County filed?
Montgomery County has 775 National Flood Insurance Program (NFIP) claims totaling $4.8M in payments, with an average of $6.1K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Montgomery County?
No. In Montgomery County, Winter Weather has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $71.0M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Montgomery County?
The most active year for disaster declarations in Montgomery County was 2003, with 2 declarations. The county has FEMA disaster data spanning 1971 to 2026.
What is the FEMA National Risk Index score for Montgomery County?
According to the FEMA National Risk Index, Montgomery County, Maryland has an overall risk score of 91.7 out of 100 (Relatively Moderate). Social vulnerability here rates Very Low, while community resilience comes in at Relatively High. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $126.4M in annualized losses.
Which natural hazard poses the greatest risk to Montgomery County?
FEMA's NRI data points to Montgomery County as of the latest release is Winter Weather (risk rating: Very High). Other significant hazards include Heat Wave (Relatively High) and Strong Wind (Relatively High). FEMA's modeled event frequency puts winter weather here at an average of 12 times per year, drawn from 229 historical events on record. 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.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

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.

FEMA OpenFEMA declarations + NRI for Montgomery County · vintage 2026-08-25 · Methodology · Maryland profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events