County Hazards

Storm events on record through

Hillsborough County, New Hampshire 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 618 storm events on record for Hillsborough County, New Hampshire, from 1950 through 30 Jun 2026.

The newest event on record is a thunderstorm wind event on 18 Jun 2026.

FEMA has 31 disaster declarations on record for the county from 1964 through 1 Oct 2026. The newest is DR-4516 of 3 Apr 2020.

OpenFEMA has 629 NFIP claims on record for the county from 1978 through 8 Sep 2026. The NFIP paid $10 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 Hillsborough County. The site compares the agency data at each update. Updates of the data

The five hazards

Storm events on record for Hillsborough County by hazard and period (NCEI, through 30 Jun 2026)
Hazard1950 to 20262000 to 20092010 to 20192020 to 2026Newest event
Hail111322535
Tornado19000
Flood95152240
Wind3055090105
Winter583200
Other event types30Heat, cold, drought, wildfire, lightning, fog, tropical and other types
All storm events618144142180

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.

Forecast zones with the name of the county give 106 of the 618 events. 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 Hillsborough County beside the total of the counties of New Hampshire and of the United States
MeasureHillsboroughAll counties of New HampshireAll counties of the United States
Storm events for each 100 square miles, 1950 to 202670.566.849.3
Storm events for each 10,000 residents, 1950 to 202614.643.152.5
NFIP claims for each 1,000 policies in force, 2016 to 202550.6154.3185.3

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 Wind60 mph (52 knots, estimated gust)

1 mile SW of PARKER

Thunderstorm Wind60 mph (52 knots, estimated gust)

1 mile NNW of SOUTH LYNDEBOROUGH

Thunderstorm Wind60 mph (52 knots, estimated gust)

2 miles WNW of WILDER

Thunderstorm Wind60 mph (52 knots, estimated gust)

1 mile E of WEST PETERBOROUGH

Thunderstorm Wind60 mph (52 knots, estimated gust)

At ANTRIM

Thunderstorm Wind60 mph (52 knots, estimated gust)

2 miles ENE of HOLLIS

Thunderstorm Wind60 mph (52 knots, estimated gust)

2 miles SE of WILTON CENTER

Thunderstorm Wind69 mph (60 knots, estimated gust)

1 mile N of BROOKLINE

Thunderstorm Wind60 mph (52 knots, estimated gust)

1 mile SSE of HOLLIS

Thunderstorm Wind60 mph (52 knots, estimated gust)

At FRANCESTOWN

Thunderstorm Wind60 mph (52 knots, estimated gust)

1 mile E of WEST PETERBOROUGH

Thunderstorm Wind58 mph (50 knots, estimated gust)

2 miles WNW of MERRIMACK. Damage estimate: $2 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile NNE of REEDS FERRY. Damage estimate: $2 thousand

Hail1.50 in, ping-pong ball size

2 miles ENE of (MHT)MANCHESTER MUNI. Damage estimate: $1 thousand

Hail1.00 in, quarter size

1 mile SE of SMITHVILLE

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile NNE of PINE HILL. Damage estimate: $2 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile NW of MT VERNON

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile W of GOFFSTOWN. Damage estimate: $2 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile NE of BABOOSIC

Hail1.00 in, quarter size

At BABOOSIC

Flash Flood

2 miles SSE of PINE HILL

Flash Flood

2 miles E of PINE HILL

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile W of SOUTH MILFORD. Damage estimate: $10 thousand

Thunderstorm Wind58 mph (50 knots, estimated gust)

1 mile E of NORTH WEARE

Flash Flood

5 miles WSW of CLINTON VLG. Damage estimate: $5 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 Hillsborough 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
1950s00000121004
1960s031403304018
1970s31100100107
1980s611230612123
1990s25102232172316100
2000s1713168918724266144
2010s164101221102318235142
2020s18293529302811 (part of the year)180

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 31 disaster declarations on record for Hillsborough County from 1964 through 1 Oct 2026. The newest is DR-4516: COVID-19 PANDEMIC.

Disaster declarations that name Hillsborough County (OpenFEMA, through 1 Oct 2026)
DeclaredNumberTypeIncident typeTitle in the FEMA recordAssistance
DR-4516Major disasterBiologicalCOVID-19 PANDEMICIndividual, Public
EM-3445EmergencyBiologicalCOVID-19Public
DR-4209Major disasterSevere StormSEVERE WINTER STORM AND SNOWSTORMPublic
DR-4105Major disasterSevere StormSEVERE WINTER STORM AND SNOWSTORMPublic
EM-3360EmergencyHurricaneHURRICANE SANDYPublic
DR-4049Major disasterSevere StormSEVERE STORM AND SNOWSTORMPublic
EM-3344EmergencySevere StormSEVERE STORMPublic
EM-3333EmergencyHurricaneHURRICANE IRENEPublic
DR-1913Major disasterSevere StormSEVERE STORMS AND FLOODINGPublic
DR-1892Major disasterSevere StormSEVERE WINTER STORMPublic
DR-1812Major disasterSevere Ice StormSEVERE WINTER STORMPublic
EM-3297EmergencySevere StormSEVERE WINTER STORMPublic
DR-1799Major disasterSevere StormSEVERE STORMS AND FLOODINGPublic
DR-1695Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual, Public
DR-1643Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual, Public
DR-1610Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual, Public
EM-3258EmergencyHurricaneHURRICANE KATRINA EVACUATIONPublic
EM-3211EmergencySnowstormRECORD SNOWPublic
EM-3207EmergencySnowstormRECORD AND/OR NEAR RECORD SNOWPublic
EM-3193EmergencySnowstormSNOWPublic
EM-3177EmergencySnowstormSNOWPublic
EM-3166EmergencySnowstormSNOWPublic
DR-1231Major disasterSevere StormSEVERE STORMS AND FLOODINGIndividual
DR-1199Major disasterSevere StormSEVERE ICE STORM, RAINS AND HIGH WINDSIndividual, Public
DR-1144Major disasterFloodFALL NORTHEASTER RAINSTORMIndividual, Public
EM-3101EmergencySnowstormBLIZZARDS, HIGH WINDS & RECORD SNOWFALLPublic
DR-917Major disasterHurricaneHURRICANE BOB & SEVERE STORMSPublic
DR-876Major disasterFloodSEVERE STORMS & FLOODINGPublic
DR-789Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public
DR-771Major disasterFloodSEVERE STORMS, FLOODINGPublic
DR-399Major disasterFloodSEVERE STORMS & FLOODINGIndividual, Public

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 New Hampshire 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 629 NFIP claims on record for Hillsborough County from 1978 through 8 Sep 2026.

The NFIP paid $10,437,181 on 468 claims.

The county has 50.6 NFIP claims for each 1,000 policies in force. The rate uses 38 claims with a year of loss from 2016 to 2025. FEMA counts 751 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.

NFIP claims in Hillsborough 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
1970s111930
1980s5146210135912112
1990s0103213316148
2000s2201199165150140362
2010s2371152147253
2020s00122100 (part of the year)24

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

NFIP claims by year of loss with the amount paid: 40 years
NFIP claims in Hillsborough County by year of loss, with the amount paid (OpenFEMA, through 8 Sep 2026)
Year of lossClaimsClaims with a paymentAmount paid
20241not shownnot shown
20232216$427,869
20221not shownnot shown
20192not shownnot shown
201876$132,008
20174not shownnot shown
20161not shownnot shown
20152not shownnot shown
20145not shownnot shown
20131not shownnot shown
20121not shownnot shown
201175$47,867
20102318$242,418
20081411$70,816
2007150132$3,466,234
2006165147$4,965,151
200596$84,411
20041910$125,190
20031not shownnot shown
20012not shownnot shown
20002not shownnot shown
19991not shownnot shown
19986not shownnot shown
19971not shownnot shown
19963317$155,048
19951not shownnot shown
19942not shownnot shown
19933not shownnot shown
19911not shownnot shown
19892not shownnot shown
19881not shownnot shown
19875936$241,510
1986137$111,200
19842110$38,062
19836not shownnot shown
19824not shownnot shown
19811not shownnot shown
19805not shownnot shown
1979199$119,155
19781110$78,261

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 63 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

Risk Index rating
Relatively Moderate
Risk Index score
89.8 of 100
Expected Annual Loss rating
Relatively Moderate
Expected Annual Loss
$120 million
Social Vulnerability rating
Very Low
Community Resilience rating
Relatively High
National Risk Index of Hillsborough County by hazard type (FEMA, December 2025 release)
Hazard typeRisk Index ratingExpected Annual Loss
AvalancheVery Low$28
Cold waveRelatively Moderate$2,633,844
DroughtRelatively Low$356,816
EarthquakeRelatively Low$5,767,739
HailRelatively Low$473,153
Heat waveRelatively Low$1,717,550
HurricaneRelatively Moderate$18,424,003
Ice stormVery High$2,549,984
Inland floodingRelatively Moderate$76,359,209
LandslideRelatively Low$39,187
LightningRelatively High$2,186,482
Strong windRelatively High$2,529,677
TornadoRelatively Moderate$6,546,590
WildfireRelatively Low$203,767
Winter weatherRelatively High$486,227

The National Risk Index dataset leverages available source data for natural hazard and community risk factors to develop a baseline relative risk measurement for each United States county and Census tract.

The rating is a qualitative categorization that describes the community in comparison to all other communities at the same level, ranging from “Very Low” to “Very High.”

The National Risk Index data are meant for planning purposes only.

The words of the agency. Source: FEMA, National Risk Index Data: Frequently Asked Questions (December 2025, v1.20), copied on .

The labels and the ratings are those of FEMA. Expected Annual Loss is a figure for a whole county. It is not a figure for a property. How to read the National Risk Index

Tropical storm and hurricane tracks

The HURDAT2 record of the National Hurricane Center has 46 tracks within 100 miles of the centre point of the county, through the 2025 season. 2 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 Hillsborough County (NHC HURDAT2)
Storm nameYearNearest point of the trackHighest wind within 100 miles
Elsa202173 miles52 mph
Henri202199 miles46 mph
Andrea201376 miles46 mph
Irene201175 miles58 mph
Hanna200870 miles52 mph
Barry200759 miles40 mph
Floyd199959 miles58 mph
Bertha199657 miles69 mph
Gloria198589 miles86 mph
Belle197641 miles40 mph
Doria197162 miles52 mph
Unnamed Atlantic storm196881 miles52 mph
Alma196689 miles46 mph
Brenda196013 miles46 mph
Donna196028 miles69 mph
Cindy195999 miles58 mph
Carol195421 miles92 mph
Able195277 miles52 mph
Unnamed Atlantic storm194973 miles52 mph
Unnamed Atlantic storm194473 miles75 mph
Unnamed Atlantic storm193877 miles69 mph
Unnamed Atlantic storm19346 miles52 mph
Unnamed Atlantic storm192471 miles63 mph
Unnamed Atlantic storm192346 miles52 mph
Unnamed Atlantic storm191637 miles58 mph
Unnamed Atlantic storm191667 miles52 mph
Unnamed Atlantic storm191563 miles40 mph
Unnamed Atlantic storm190877 miles40 mph
Unnamed Atlantic storm190789 miles40 mph
Unnamed Atlantic storm190496 miles86 mph
Unnamed Atlantic storm190271 miles40 mph
Unnamed Atlantic storm189961 miles52 mph
Unnamed Atlantic storm189763 miles40 mph
Unnamed Atlantic storm189662 miles63 mph
Unnamed Atlantic storm189464 miles63 mph
Unnamed Atlantic storm189365 miles69 mph
Unnamed Atlantic storm188870 miles46 mph
Unnamed Atlantic storm188877 miles40 mph
Unnamed Atlantic storm187816 miles69 mph
Unnamed Atlantic storm187416 miles69 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 Hillsborough County

Each ZIP Code below has a page with its NFIP claims by year. 6 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:

  • Amherst
  • Antrim
  • Bedford
  • Bennington
  • Brookline
  • Deering
  • East Merrimack
  • Francestown
  • Goffstown
  • Greenfield
  • Greenville
  • Hancock
  • Hillsborough
  • Hollis
  • Hudson
  • Klondike Corner
  • Litchfield
  • Lyndeborough
  • Manchester
  • Mason
  • Merrimack
  • Milford
  • Mont Vernon
  • Nashua
  • New Boston
  • New Ipswich
  • Pelham
  • Peterborough
  • Pinardville
  • Sharon
  • Temple
  • Weare
  • Wilton
  • Windsor

Official channels

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

Cite this page

County Hazards. "Hillsborough County, New Hampshire: storm events, disaster declarations and flood insurance claims on record". https://countyhazards.com/county/nh/hillsborough/. 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 Hillsborough County?
NCEI has 19 tornado events on record for Hillsborough County from 1950 through 30 Jun 2026. 6 events have a rating of EF2 or F2, or a higher rating.
How large is the hail on record for Hillsborough County?
NCEI has 111 hail events on record from 1955 through 30 Jun 2026. 8 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 Hillsborough County?
July has 176 of the 618 storm events on record from 1950 through 30 Jun 2026.
How many NFIP claims are there for each 1,000 policies in force in Hillsborough County?
The county has 50.6 NFIP claims for each 1,000 policies in force. The rate uses 38 claims with a year of loss from 2016 to 2025. FEMA counts 751 residential policies in force on 3 Aug 2026. The claims have every type of building. FEMA counts residential policies only.