State profile · FEMA + NOAA + National Risk Index

Connecticut Natural Disasters

Connecticut has one of the lighter federal disaster records in the country. 43 FEMA disaster declarations are on record, led by hurricane, with $81.3M in combined property and crop damage. A light count doesn't mean zero risk, just fewer events that crossed the federal declaration threshold. NOAA storm event data shows 2,622 recorded weather events resulting in 16 fatalities, figures the state uses to prioritize disaster-preparedness planning.

Compiled by PlainHazard Editorial, Independent hazard-data publisher · August 3, 2026

43
FEMA declarations: 2,622
NOAA storm events: 16
Storm fatalities: $81.3M
Property + crop damage

How does Connecticut compare?

Connecticut vs. every U.S. state

FEMA disaster declarations, all-time

43 19th percentile higher than 19% of 59 states and territories

Each bar is a band; taller bars hold more states and territories. 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 · 2026-08-03

Do more storms mean more federal disasters?

Connecticut sits at the 13th percentile of FEMA declaration volume and the 13th percentile of NOAA storm-event volume among 55 states and territories, those two ranks are not interchangeable.

Each point is a state or territory plotted by within-sample rank percentile (0–100) on FEMA OpenFEMA declarations (x) and NOAA Storm Events (y). Crosshairs mark the mid-rank (50th). Illinois is the clearest threshold-gap example in this release. Source: FEMA OpenFEMA Disaster Declarations Summaries v2 + NOAA Storm Events Database.

Read the chart, every state as text

Percentiles are within this release's state/territory sample. Raw counts are the underlying FEMA and NOAA totals.

State	FEMA decls	FEMA %ile	NOAA storms	NOAA %ile
California	396	98	23,694	93
Texas	389	96	53,309	98
Oklahoma	258	95	23,896	95
Washington	215	93	4,408	22
Florida	188	91	12,838	55
Oregon	169	89	3,695	20
New Mexico	126	87	10,974	45
Arizona	120	85	9,541	38
New York	118	84	21,653	82
Montana	112	82	13,576	56
Colorado	111	78	18,340	73
Louisiana	111	78	11,204	47
Nevada	110	76	4,534	24
Alabama	102	75	14,583	64
Kentucky	98	71	19,947	78
Mississippi	98	71	14,100	62
Tennessee	97	69	16,645	69
South Dakota	96	67	22,759	87
Alaska	94	64	2,683	15
Kansas	94	64	25,115	96
Arkansas	87	60	13,637	58
Nebraska	87	60	20,136	80
Missouri	86	58	22,952	89
North Carolina	85	56	16,367	67
West Virginia	84	55	12,026	49
Georgia	81	51	16,676	71
Minnesota	81	51	19,109	75
Iowa	78	49	21,883	84
Virginia	77	47	23,584	91
North Dakota	75	45	10,818	44
Hawaii	72	44	6,200	31
Maine	71	42	4,781	27
Illinois	68	40	22,088	85
Pennsylvania	64	38	19,427	76
New Hampshire	63	36	2,547	11
Vermont	62	35	3,449	18
Idaho	60	31	5,142	29
Ohio	60	31	16,184	65
Massachusetts	59	25	6,781	33
New Jersey	59	25	8,218	35
Utah	59	25	4,578	25
Wisconsin	56	24	13,807	60
Indiana	54	22	12,687	53
Puerto Rico	51	18	2,944	16
South Carolina	51	18	10,520	42
Michigan	46	16	9,052	36
Wyoming	45	15	12,494	51
Connecticut	43	13	2,622	13
Maryland	38	11	10,290	40
U.S. Virgin Islands	33	9	88	0
Rhode Island	31	7	924	7
Delaware	26	5	1,475	9
Guam	25	4	258	2
District of Columbia	24	2	452	5
American Samoa	17	0	292	4

What shapes Connecticut's record?

Hurricane

14
Severe Storm

12
Snowstorm

8
Flood

3
Tornado

3
Biological

2
Fire

1

What this shows Hurricane leads Connecticut's FEMA declaration mix with 14 records among the types shown.

NOAA storm events by year

Reported severe-weather events in Connecticut, 2015–2025 catalog window.

NOAA Storm Events Database event counts for Connecticut. Focus a year mark for its exact count.

Peak year in this series: 2018 (335 events). Counts are reported events, not a complete census.

29 /100

Historical Activity Index

Moderate historical activity

Connecticut · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite mixing OpenFEMA declaration totals (1953–present) with NOAA Storm Events (2015–2025), different windows and event definitions, disclosed weights on the methodology page . 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) Low

7/30

43 OpenFEMA declarations, full ingest window (0.5x state average)

NOAA Storm Events (2015–2025) Low

3/25

2622 NOAA storm events in the 2015–2025 extract (0.2x median state)

NOAA Damage (2015–2025) Low

1/25

Recorded NOAA property+crop damage in the 2015–2025 extract (0.1x median state)

Hazard Diversity Very High

18/20

7 different disaster types declared in Connecticut

What does Connecticut's hazard record show?

Flood exposure & where to dig deeper

Flood exposure is quantified separately through the National Flood Insurance Program. Policyholders across 8Connecticut counties have filed 29,251 NFIP claims totaling $551.9M, or an average of $18.9K per claim. NFIP data captures only insured flood losses, so uninsured flood damage and storm-surge losses outside mapped high-risk zones remain invisible in this figure. Drill into individual counties for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations, state-level averages can mask sharp county-to-county differences in exposure and resilience.

NOAA storm events & FEMA National Risk Index

NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, Connecticut recorded 2,622 individual storm events, causing 16 fatalities and 35 injuries, with combined property and crop damage estimated at $81.3M. The most frequent event types in the state are Thunderstorm Wind (926 events), Flash Flood (328 events), Winter Weather (311 events).

What this count is, and is not. Storm Events is a reported database: NOAA compiles it from National Weather Service offices, trained spotters, law enforcement, and the public. It is a record of what was observed and logged, not a complete census of severe weather. Densely populated areas report more events than sparsely populated ones with similar meteorological exposure, and detection has improved over time, so an event count is not a like-for-like measure of hazard between places or across decades. Damage figures are field estimates, not audited losses. See methodology.

FEMA disaster declarations

Connecticut (CT) has a low level of federal declaration activity, with 43 FEMA declaration records, including 26 Major Disaster declarations (DR). A DR may authorize Individual Assistance, Public Assistance, or both; those program approvals are not implied by the DR count. The dominant declaration type is Hurricane, followed by Severe Storm (12), Snowstorm (8), Flood (3). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.

Disaster Types in Connecticut

Hurricane 14

Severe Storm 12

Snowstorm 8

Flood 3

Tornado 3

Biological 2

Fire 1

Storm Events by Type

NOAA storm event data for Connecticut (2015-2025).

Event Type	Events	Fatalities	Injuries	Property Damage
Thunderstorm Wind	926	7	13	$9.0M
Flash Flood	328	3	0	$9.3M
Winter Weather	311	1	3	$162.7K
Heavy Snow	157	0	0	$53.0K
Strong Wind	142	1	2	$2.3M
High Wind	118	1	3	$2.5M
Winter Storm	113	1	1	$48.0K
Hail	104	0	0	$75.0K
Flood	77	1	0	$808.0K
Heat	71	0	0	$0
Lightning	44	0	13	$1.3M
Drought	44	0	0	$0
Tornado	31	0	0	$1.3M
Cold/Wind Chill	29	0	0	$0
Excessive Heat	24	0	0	$0
Tropical Storm	22	1	0	$54.3M
Coastal Flood	21	0	0	$0
Blizzard	21	0	0	$0
Extreme Cold/Wind Chill	17	0	0	$0
Frost/Freeze	7	0	0	$0

Storm Events by Year

Year	Events	Fatalities	Injuries	Property Damage
2025	207	0	4	$222.4K
2024	288	4	7	$1.2M
2023	240	0	0	$2.0M
2022	190	0	2	$185.5K
2021	303	1	2	$7.7M
2020	238	1	1	$56.4M
2019	240	3	2	$803.0K
2018	335	3	6	$7.9M
2017	201	2	4	$1.4M
2016	210	0	4	$1.7M
2015	170	2	3	$1.5M

FEMA Disaster Declarations

How the 43 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Major Disaster 26 declarations (60%) Emergency 16 declarations (37%) Fire Management 1 declarations (2%)

Download all 43 declarations as CSV . Source data is public domain; our derived presentation is CC0.

43 unique disaster declarations in Connecticut.

DR#	Title	Type	Incident	Date
5542	HAWTHORNE FIRE	FM	Fire	2024-10-24
4820	SEVERE STORM, FLOODING, LANDSLIDES, AND MUDSLIDES	DR	Severe Storm	2024-09-20
3612	SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES	EM	Severe Storm	2024-08-21
3604	SEVERE STORMS, FLOODING, AND A POTENTIAL DAM BREACH	EM	Severe Storm	2024-01-13
4629	REMNANTS OF HURRICANE IDA	DR	Hurricane	2021-10-30
3564	HURRICANE HENRI	EM	Hurricane	2021-08-22
4580	TROPICAL STORM ISAIAS	DR	Hurricane	2021-01-12
3535	TROPICAL STORM ISAIAS	EM	Hurricane	2020-08-06
4500	COVID-19 PANDEMIC	DR	Biological	2020-03-28
3439	COVID-19	EM	Biological	2020-03-13
4410	SEVERE STORMS AND FLOODING	DR	Severe Storm	2018-12-05
4385	SEVERE STORMS, TORNADOES, AND STRAIGHT-LINE WINDS	DR	Tornado	2018-08-20
4213	SEVERE WINTER STORM AND SNOWSTORM	DR	Severe Storm	2015-04-08
4106	SEVERE WINTER STORM AND SNOWSTORM	DR	Severe Storm	2013-03-21
3361	SEVERE WINTER STORM	EM	Severe Storm	2013-02-10
4087	HURRICANE SANDY	DR	Hurricane	2012-10-30
3353	HURRICANE SANDY	EM	Hurricane	2012-10-28
4046	SEVERE STORM	DR	Severe Storm	2011-11-17
3342	SEVERE STORM	EM	Severe Storm	2011-10-31
4023	TROPICAL STORM IRENE	DR	Hurricane	2011-09-02
3331	HURRICANE IRENE	EM	Hurricane	2011-08-27
1958	SNOWSTORM	DR	Snowstorm	2011-03-03
1904	SEVERE STORMS AND FLOODING	DR	Severe Storm	2010-04-23
1700	SEVERE STORMS AND FLOODING	DR	Severe Storm	2007-05-11
3266	SNOW	EM	Snowstorm	2006-05-02
1619	SEVERE STORMS AND FLOODING	DR	Severe Storm	2005-12-16
3246	HURRICANE KATRINA EVACUATION	EM	Hurricane	2005-09-13
3200	RECORD SNOW	EM	Snowstorm	2005-02-17
3192	SNOW	EM	Snowstorm	2004-01-15
3176	SNOW	EM	Snowstorm	2003-03-11
1302	HURRICANE FLOYD	DR	Hurricane	1999-09-23
1092	BLIZZARD 0F 96	DR	Snowstorm	1996-01-24
3098	SEVERE WINDS & BLIZZARD, RECORD SNOWFALL	EM	Snowstorm	1993-03-16
972	WINTER STORM & COASTAL FLOODING	DR	Flood	1992-12-17
916	HURRICANE BOB	DR	Hurricane	1991-08-30
837	SEVERE STORMS & TORNADOES	DR	Tornado	1989-07-17
747	HURRICANE GLORIA	DR	Hurricane	1985-10-11
711	SEVERE STORMS & FLOODING	DR	Flood	1984-06-18
661	SEVERE STORMS & FLOODING	DR	Flood	1982-06-14
608	TORNADO & SEVERE STORMS	DR	Tornado	1979-10-04
3060	BLIZZARD & SNOWSTORMS	EM	Snowstorm	1978-02-07
42	HURRICANE, TORRENTIAL RAIN & FLOODS	DR	Hurricane	1955-08-20
25	HURRICANES	DR	Hurricane	1954-09-17

NFIP Flood Insurance Claims

National Flood Insurance Program claims across Connecticut from FEMA NFIP data.

Total Claims

29,251

Total Paid

$551.9M

Avg Per Claim

$18.9K

Counties With Claims

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

Counties in Connecticut

8 counties with FEMA disaster data.

#	County	Disasters	Share	Major	Top Hazard	Latest
1	New Haven County	36	83.7%	20	Hurricane	2025
2	Fairfield County	33	76.7%	18	Hurricane	2024
3	Litchfield County	31	72.1%	17	Hurricane	2024
4	Hartford County	30	69.8%	15	Hurricane	2025
5	New London County	30	69.8%	16	Hurricane	2024
6	Windham County	28	65.1%	14	Hurricane	2021
7	Middlesex County	28	65.1%	16	Hurricane	2022
8	Tolland County	28	65.1%	14	Hurricane	2021

All 8 counties in Connecticut are listed above.

Disaster Preparedness Guides

Learn more about natural disaster risk, preparedness, and data interpretation.

Preparing for Natural Disasters

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Hazard Risk by Region

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Climate Change & Disasters

How climate trends are changing the frequency and severity of natural disasters.

Frequently Asked Questions

What natural disasters affect Connecticut?

Connecticut is affected by hurricane, severe storm, snowstorm, flood. The state's leading disaster type is Hurricane, based on 43 FEMA disaster declarations on record.

How many FEMA disaster declarations has Connecticut had?

Connecticut has received 43 FEMA disaster declarations, including 26 major disaster declarations. The declaration history covers several disaster types, including Hurricane (14), Severe Storm (12), Snowstorm (8).

What severe weather events are most common in Connecticut?

The most common severe weather events in Connecticut include thunderstorm wind (926 events), flash flood (328 events), winter weather (311 events). Between 2015 and 2025, NOAA recorded these events causing 16 fatalities and $81.3M in property and crop damage.

How active is Connecticut's federal disaster declaration record?

Connecticut has a low level of historical federal declaration activity, based on 43 FEMA declaration records. This band is not a future-risk forecast. Separately, NOAA storm events from 2015-2025 record 16 fatalities and 35 injuries. Combined NOAA-listed property and crop losses total $81.3M.

How many flood insurance claims has Connecticut had?

Connecticut has 29,251 National Flood Insurance Program (NFIP) claims with $551.9M total paid out. Claims average $18.9K, with 8 counties reporting flood insurance claims.

Which counties in Connecticut have the most disaster declarations?

Among 8 counties in Connecticut, those with the most FEMA declaration records include New Haven (36 declarations), Fairfield (33 declarations), Litchfield (31 declarations). County-by-county figures show where the state's federal declaration history concentrates.

Source: FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) FEMA OpenFEMA Disaster Declarations, NOAA Storm Events Database (2015-2025) For informational purposes only

What this means for Connecticut

New Haven alone accounts for 84% of Connecticut's FEMA disaster declarations, out of 8 counties tracked statewide.

The declaration record is uneven within the state: New Haven and Fairfield carry the most FEMA declarations. Browse counties
See how Connecticut ranks against other states for disaster frequency and damage. State rankings
Learn what FEMA declarations, NRI risk scores, and damage figures do and don't tell you. Disaster-data guide

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

PlainHazard derives this presentation from FEMA's Disaster Declarations Summaries. Its county comparison covers 3,266 U.S. counties and county equivalents in this database, refreshed as of 2026-08-03. Read our methodology - how this data is sourced, computed, and verified.

Browse all → | Rankings →

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

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

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