County Hazards

Storm events on record through

New London County, Connecticut Storm events, disaster declarations and flood insurance claims on record

This page is a county record of past events and claims. It does not show the flood zone or the risk of an address. For the flood map of an address, use FEMA's address search (opens in a new tab).

NCEI has 356 storm events on record for New London County, Connecticut, from 1950 through 30 Jun 2026.

The newest event on record is a thunderstorm wind event on 11 Jun 2026.

FEMA has 30 disaster declarations on record for the county from 1964 through 1 Oct 2026. The newest is EM-3604 of 13 Jan 2024.

OpenFEMA has 2,155 NFIP claims on record for the county from 1978 through 8 Sep 2026. The NFIP paid $31 million on these claims.

The NWS collects event reports from a variety of sources, which include (but are not limited to): county, state, and federal emergency management officials, local law enforcement officials, SKYWARN spotters, NWS damage surveys, newspaper clipping services, the insurance industry, and the general public, among others.

The National Weather Service reports property and crop damage estimates using available data at the time of event reporting. These values should therefore be considered broad estimates. Damage amounts are not adjusted for inflation.

Zone (NWS Forecast Zone): A zone is a geographic area defined by the NWS for issuing forecasts, watches, and warnings. While zones often align with counties, they can also represent smaller or subdivided areas within a county to account for differences in weather conditions, such as elevation or proximity to water. Larger-scale events—such as heat, cold, drought, and winter storms—are typically recorded by zone.

The words of the agency. Source: NOAA NCEI, Storm Events Database, page "Frequently Asked Questions", copied on .

This is raw, unedited data from FEMA's National Emergency Management Information System (NEMIS) and as such is subject to a small percentage of human error.

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

It is derived from the National Flood Insurance Program system of record, staged in the program's reporting platform and redacted to protect policy holder personally identifiable information.

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

Dates of the data: NCEI storm events through . OpenFEMA disaster declarations through . NFIP claims through .

Since the last update: no change is on record for New London County. The site compares the agency data at each update. Updates of the data

The five hazards

Storm events on record for New London County by hazard and period (NCEI, through 30 Jun 2026)
Hazard1950 to 20262000 to 20092010 to 20192020 to 2026Newest event
Hail6217159
Tornado4111
Flood116305616
Wind137313832
Winter0000None on record
Other event types37Heat, cold, drought, wildfire, lightning, fog, tropical and other types
All storm events3569311761

A hazard name opens the page of that hazard for the county. A hazard has a page from 10 events. The year 2026 has the events through 30 Jun 2026 only.

A county count has the events that NCEI gives to the county. It also has the events of a forecast zone that has the name of the county. A zone with another name counts for the state only.

Rates of New London County beside the total of the counties of Connecticut and of the United States
MeasureNew LondonAll counties of ConnecticutAll counties of the United States
Storm events for each 100 square miles, 1950 to 202653.5106.049.3
Storm events for each 10,000 residents, 1950 to 202613.214.252.5
NFIP claims for each 1,000 policies in force, 2016 to 2025no figureno figure185.3

The columns for the state and the United States total the counties. They count the events of each county in the same way as the county column. The site gives a rate for each 10,000 residents only from 10,000 residents. Residents and area: Census Bureau, 2021.

Newest storm events on record

Thunderstorm Wind58 mph (50 knots, estimated gust)

At GALES FERRY. Damage estimate: $4 thousand

Lightning

1 mile E of OCCUM. Damage estimate: $5 thousand

Lightning

2 miles E of LEFFINGWELL. Damage estimate: $10 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile S of FRANKLIN. Damage estimate: $1 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile SW of FRANKLIN. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles SW of GILMAN. Damage estimate: $1 thousand

Thunderstorm Wind63 mph (55 knots, estimated gust)

1 mile SSW of HAMBURG. Damage estimate: $5 thousand

Hail1.50 in, ping-pong ball size

1 mile S of PAWCATUCK

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles WSW of NORTH STONINGTON. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile E of FRANKLIN. Damage estimate: $1 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles WSW of NORTHWICHTOWN. Damage estimate: $10 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles WSW of MONTVILLE. Damage estimate: $2 thousand

Lightning

1 mile NE of VOLUNTOWN

Thunderstorm Wind58 mph (50 knots, estimated gust)

3 miles W of NORTH STONINGTON. Damage estimate: $500

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles ENE of HOPEVILLE. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile SE of HOPEVILLE. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles E of HOPEVILLE. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

At HOPEVILLE. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

3 miles ENE of HOPEVILLE. Damage estimate: $3 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile NE of HOPEVILLE. Damage estimate: $3 thousand

Hail1.00 in, quarter size

1 mile E of JEWETT CITY

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles WSW of VERSAILLES. Damage estimate: $2 thousand

Flash Flood

1 mile SW of FITCHVILLE

Thunderstorm Wind63 mph (55 knots, estimated gust)

1 mile W of GALES FERRY. Damage estimate: $3 thousand

Thunderstorm Wind63 mph (55 knots, estimated gust)

1 mile ESE of HAPPYLAND. Damage estimate: $3 thousand

The 25 events above are the newest in the NCEI record. A place is the text of the NCEI record: a distance and a direction from a reference place. Wind speed is in miles per hour, with the knots that NCEI gives. The site does not show a place text that names a private property or reads as a person. Download these events (CSV)

Storm events on record for New London County by year, 1950 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1950s00000000000
1960s00010000023
1970s01002011005
1980s00001001114
1990s14423101210171073
2000s7771712105172093
2010s32781671844147117
2020s1014771661 (part of the year)61

A darker cell has a larger count. The number is in each cell.

NCEI recorded tornado events from 1950, and hail and thunderstorm wind events from 1955. It recorded all event types from 1996. A count before 1996 has fewer event types.

FEMA disaster declarations

FEMA has 30 disaster declarations on record for New London County from 1964 through 1 Oct 2026. The newest is EM-3604: SEVERE STORMS, FLOODING, AND A POTENTIAL DAM BREACH.

Disaster declarations that name New London County (OpenFEMA, through 1 Oct 2026)
DeclaredNumberTypeIncident typeTitle in the FEMA recordAssistance
EM-3604EmergencySevere StormSEVERE STORMS, FLOODING, AND A POTENTIAL DAM BREACHPublic
DR-4629Major disasterHurricaneREMNANTS OF HURRICANE IDAIndividual
EM-3564EmergencyHurricaneHURRICANE HENRIPublic
DR-4580Major disasterHurricaneTROPICAL STORM ISAIASPublic
EM-3535EmergencyHurricaneTROPICAL STORM ISAIASPublic
DR-4500Major disasterBiologicalCOVID-19 PANDEMICIndividual, Public
EM-3439EmergencyBiologicalCOVID-19Public
DR-4410Major disasterSevere StormSEVERE STORMS AND FLOODINGPublic
DR-4213Major disasterSevere StormSEVERE WINTER STORM AND SNOWSTORMPublic
DR-4106Major disasterSevere StormSEVERE WINTER STORM AND SNOWSTORMPublic
EM-3361EmergencySevere StormSEVERE WINTER STORMPublic
DR-4087Major disasterHurricaneHURRICANE SANDYIndividual, Public
EM-3353EmergencyHurricaneHURRICANE SANDYPublic
EM-3342EmergencySevere StormSEVERE STORMPublic
DR-4023Major disasterHurricaneTROPICAL STORM IRENEIndividual, Public
EM-3331EmergencyHurricaneHURRICANE IRENEIndividual, Public
DR-1958Major disasterSnowstormSNOWSTORMPublic
DR-1904Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual, Public
DR-1700Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual
DR-1619Major disasterSevere StormSEVERE STORMS AND FLOODINGPublic
EM-3246EmergencyHurricaneHURRICANE KATRINA EVACUATIONPublic
EM-3200EmergencySnowstormRECORD SNOWPublic
EM-3192EmergencySnowstormSNOWPublic
EM-3176EmergencySnowstormSNOWPublic
DR-1092Major disasterSnowstormBLIZZARD 0F 96Public
EM-3098EmergencySnowstormSEVERE WINDS & BLIZZARD, RECORD SNOWFALLPublic
DR-916Major disasterHurricaneHURRICANE BOBPublic
DR-747Major disasterHurricaneHURRICANE GLORIAPublic
DR-661Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public
EM-3060EmergencySnowstormBLIZZARD & SNOWSTORMSPublic

DR is a major disaster declaration. EM is an emergency declaration. FM is a fire management assistance declaration. A declaration for the whole state is on the Connecticut page. What a disaster declaration is

The dataset includes declared recovery programs and geographic areas (county not available before 1964; Fire Management records are considered partial due to historical nature of the dataset).

The words of the agency. Source: FEMA, OpenFEMA Dataset "Disaster Declarations Summaries - v2", copied on . The page gives: last data refresh 2026-10-01.

Flood insurance claims (NFIP)

OpenFEMA has 2,155 NFIP claims on record for New London County from 1978 through 8 Sep 2026.

The NFIP paid $31,200,309 on 1,637 claims.

The FEMA file of residential policies in force has no row for the county. The site gives no rate for each 1,000 policies.

NFIP claims in New London County by year of loss, 1978 to 2026
DecadeYear that ends in 0Year that ends in 1Year that ends in 2Year that ends in 3Year that ends in 4Year that ends in 5Year that ends in 6Year that ends in 7Year that ends in 8Year that ends in 9All
1970s6692158
1980s29029425137421552459
1990s4564171828383150
2000s41422797130533195
2010s31682678791131291,118
2020s031732932 (part of the year)75

A darker cell has a larger count. The number is in each cell.

NFIP claims by year of loss with the amount paid: 47 years
NFIP claims in New London County by year of loss, with the amount paid (OpenFEMA, through 8 Sep 2026)
Year of lossClaimsClaims with a paymentAmount paid
20262not shownnot shown
20253not shownnot shown
20242922$856,321
20233not shownnot shown
202275$84,577
20213125$657,397
201996$117,058
2018127$218,194
20173not shownnot shown
20161not shownnot shown
20151not shownnot shown
201497$53,009
20137not shownnot shown
2012678598$20,804,983
20118255$800,969
2010316235$3,737,594
20093322$255,366
20085not shownnot shown
20073019$207,953
20061not shownnot shown
20059770$958,235
20047not shownnot shown
20032not shownnot shown
20022not shownnot shown
2001147$25,498
20004not shownnot shown
19993not shownnot shown
19988not shownnot shown
19973not shownnot shown
199686$28,211
19952not shownnot shown
19941814$133,232
19937not shownnot shown
19924125$98,466
19915629$102,178
19904not shownnot shown
19892not shownnot shown
19885not shownnot shown
1987156$9,197
19862not shownnot shown
19857435$96,044
1984136$13,523
19832518$21,148
1982294241$1,472,810
19802923$31,567
19799267$88,233
19786653$118,586

A year with fewer than 5 claims shows the count of claims and no amount. A year with 1 to 4 claims with a payment shows no amount either. Such an amount could point to one property. The amount is the sum of the building, contents and increased cost of compliance payments. FEMA counts 149 multiple-loss properties in the county (2 Aug 2026). How FEMA redacts NFIP claims

This dataset is not intended to be an official federal report, and should not be considered an official federal report.

Note, the County Code field may not reflect the individual county the property is located as projects can be associated with more than one county

The words of the agency. Source: FEMA, OpenFEMA Dataset "NFIP Redacted Claims - v3", copied on . The page gives: last data refresh 2026-09-09.

FEMA cannot verify the quality and/or timeliness of any data or any analysis derived therefrom after the data has been retrieved from FEMA.gov.

The words of the agency. Source: FEMA, OpenFEMA Terms and Conditions, copied on . The page gives: last updated 2025-01-22.

National Risk Index

The December 2025 release of the National Risk Index has no row for New London County. FEMA gives the rows of Connecticut for planning regions and not for counties.

Tropical storm and hurricane tracks

The HURDAT2 record of the National Hurricane Center has 64 tracks within 100 miles of the centre point of the county, through the 2025 season. 8 of them were within 50 miles at hurricane strength.

Storm names, years and distances: 40 tracks
Tropical storm and hurricane tracks within 100 miles of the centre point of New London County (NHC HURDAT2)
Storm nameYearNearest point of the trackHighest wind within 100 miles
Elsa202122 miles58 mph
Henri20216 miles63 mph
Ida202170 miles46 mph
Irene201187 miles58 mph
Hanna200836 miles52 mph
Barry200753 miles40 mph
Beryl200690 miles52 mph
Hermine200463 miles40 mph
Floyd199943 miles58 mph
Bertha199645 miles69 mph
Josephine199666 miles52 mph
Bob199132 miles104 mph
Gloria198546 miles86 mph
Henri198551 miles40 mph
Belle197665 miles69 mph
Doria197185 miles52 mph
Unnamed Atlantic storm196846 miles63 mph
Alma196671 miles46 mph
Esther196181 miles86 mph
Unnamed Atlantic storm196133 miles63 mph
Donna196019 miles98 mph
Cindy195974 miles58 mph
Diane195551 miles46 mph
Carol195413 miles115 mph
Edna195478 miles109 mph
Able195265 miles52 mph
Unnamed Atlantic storm1944100 miles40 mph
Unnamed Atlantic storm194427 miles104 mph
Unnamed Atlantic storm194487 miles52 mph
Unnamed Atlantic storm193843 miles121 mph
Unnamed Atlantic storm193442 miles46 mph
Unnamed Atlantic storm193427 miles75 mph
Unnamed Atlantic storm192484 miles63 mph
Unnamed Atlantic storm192379 miles58 mph
Unnamed Atlantic storm191638 miles58 mph
Unnamed Atlantic storm191645 miles69 mph
Unnamed Atlantic storm191540 miles52 mph
Unnamed Atlantic storm191366 miles58 mph
Unnamed Atlantic storm190813 miles40 mph
Unnamed Atlantic storm190791 miles40 mph

A name is the storm name that the National Hurricane Center gave. The distance is from the centre line of the track. It does not show how far the wind, the rain or the surge of a storm went.

ZIP Codes, cities and towns of New London County

Each ZIP Code below has a page with its NFIP claims by year. 8 more ZIP Codes have fewer than 5 claims and no page.

A city or town has no page of its own. This page is the record for the whole county, which has these places:

  • Baltic
  • Bozrah
  • Colchester
  • Conning Towers-Nautilus Park
  • East Lyme
  • Franklin
  • Gales Ferry
  • Griswold
  • Groton
  • Groton Long Point
  • Jewett City
  • Lebanon
  • Ledyard
  • Lisbon
  • Long Hill
  • Lyme
  • Mashantucket
  • Montville
  • Mystic
  • New London
  • Niantic
  • Noank
  • North Stonington
  • Norwich
  • Old Lyme
  • Old Mystic
  • Oxoboxo River
  • Pawcatuck
  • Poquonock Bridge
  • Preston
  • Salem
  • Sprague
  • Stonington
  • Voluntown
  • Waterford

Official channels

These links open the pages of the agencies. The site checked the links on .

Cite this page

County Hazards. "New London County, Connecticut: storm events, disaster declarations and flood insurance claims on record". https://countyhazards.com/county/ct/new-london/. Data: NOAA NCEI Storm Events Database through 30 Jun 2026; FEMA OpenFEMA disaster declarations through 1 Oct 2026; FEMA OpenFEMA NFIP claims through 8 Sep 2026. Page made on .

Where the data comes from

  • Storm events: NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026.
  • Disaster declarations: OpenFEMA Disaster Declarations Summaries, read on 1 Oct 2026.
  • NFIP claims: OpenFEMA NFIP Claims, as of 8 Sep 2026. Multiple-loss properties: 2 Aug 2026. Policies in force: 3 Aug 2026.
  • National Risk Index: FEMA, December 2025 release. Storm tracks: NHC HURDAT2 through the 2025 season.
  • Residents, area, places and adjacent counties: US Census Bureau, 2021 vintage.

How the counts are made · Corrections · Hazards in all states: hail, tornado, flood, wind, winter

Questions

How many tornado events are on record for New London County?
NCEI has 4 tornado events on record for New London County from 1950 through 30 Jun 2026. No event has a rating of EF2 or F2, or a higher rating.
How large is the hail on record for New London County?
NCEI has 62 hail events on record from 1955 through 30 Jun 2026. 12 events have a hail size of 1.75 inches or more. NCEI names 1.75 inches a golf ball.
Which month has the most storm events on record for New London County?
July has 92 of the 356 storm events on record from 1950 through 30 Jun 2026.
How many NFIP claims are there for each 1,000 policies in force in New London County?
The FEMA file of residential policies in force has no row for the county. The site gives no rate for each 1,000 policies.