Natural hazards · Cornish

Cornish, NH natural hazards

Most of the natural-hazard damage FEMA expects in Cornish comes from inland flooding, and overall the risk is high for a U.S. community. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Cornish?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Cornish to be higher than in 65% of U.S. communities, mostly from inland flooding.

Inland flooding78%Cold waves5%Everything else17%

By hazard

What Cornish faces

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

Inland flooding

78% of expected damage

Well above average · higher than 85% of U.S. places

Recorded about once a year in the area

Cold waves

5% of expected damage

Below average · higher than 35% of U.S. places

Recorded about 2 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Cornish flood?

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

of homes in flood zones
are insured

of all homes
are insured

No community discount. Cornish 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 Cornish

4 federal disasters brought FEMA money here

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

Brought FEMA money into CornishDeclared for Sullivan County only

2017

Severe Storm and Flooding

$21K to the Town of Cornish for repairs

2013

Severe Storms, Tornadoes, and Flooding

$108K to the Town of Cornish for repairs

2011

Tropical Storm Irene

$5K to the Town of Cornish for repairs

2010

Severe Winter Storm

$26K to the Town of Cornish for repairs

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

Around Cornish

Cornish and the towns around it

Very lowLowModerateHighVery high

Croydonmostly inland floodingHigh

Cornishmostly inland floodingHigh

Plainfieldmostly inland floodingHigh

Claremontmostly inland floodingHigh

Windsormostly inland floodingModerate

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. Cornish 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 Cornish’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Cornish. 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.