Natural hazards · Lempster

Lempster, NH natural hazards

Most of the natural-hazard damage FEMA expects in Lempster comes from inland flooding, and overall the risk is high for a U.S. community. 10 federal disasters brought FEMA money into town.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Lempster?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Lempster to be higher than in 61% of U.S. communities, mostly from inland flooding.

Inland flooding75%Hurricanes5%Everything else20%

By hazard

What Lempster faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Inland flooding

75% of expected damage

Well above average · higher than 80% of U.S. places

Recorded about once a year in the area

Hurricanes

5% of expected damage

Well above average · higher than 78% of U.S. places

Recorded about once every 13 years in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightningAvalanches

Not a risk here

Coastal floodingDroughtTsunamisVolcanic activity

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Lempster flood?

FEMA's records show no paid flood insurance claims in Lempster.

of homes in flood zones
are insured

of all homes
are insured

No community discount. Lempster isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Sullivan County.

Disasters that hit Lempster

10 federal disasters brought FEMA money here

Disasters the President declared that paid out in Lempster itself: aid to households, or repair grants to the Town of Lempster.

Brought FEMA money into LempsterDeclared for Sullivan County only

2023

Severe Storms and Flooding

$100K to the Town of Lempster for repairs

2021

Severe Storm and Flooding

$531K to the Town of Lempster for repairs

2013

Severe Winter Storm and Snowstorm

$3K to the Town of Lempster for repairs

2011

Tropical Storm Irene

$53K to the Town of Lempster for repairs

2010

Severe Winter Storm

$7K to the Town of Lempster for repairs

2008

Severe Winter Storm

$22K to the Town of Lempster for repairs

2007

Severe Storms and Flooding

$210K to the Town of Lempster for repairs

2005

Severe Storms and Flooding

5 households applied for aid $7K aid approved $86K to the Town of Lempster for repairs

2003

Snow

$5K to the Town of Lempster for repairs

2003

Severe Storms and Flooding

$9K to the Town of Lempster for repairs

Sullivan County has had 27 natural disasters declared since 1953, most often severe storms and floods.

Around Lempster

Lempster and the towns around it

Very lowLowModerateHighVery high

Marlowmostly inland floodingHigh

Lempstermostly inland floodingHigh

Acworthmostly inland floodingHigh

Washingtonmostly inland floodingHigh

Unitymostly inland floodingHigh

Goshenmostly inland floodingHigh

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Lempster is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Lempster’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Lempster. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.