Natural hazards · Marlborough

Marlborough, NH natural hazards

Most of the natural-hazard damage FEMA expects in Marlborough comes from inland flooding, and overall the risk is high for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Marlborough?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Marlborough to be higher than in 72% of U.S. communities, mostly from inland flooding.

Inland flooding74%Hurricanes6%Everything else20%

By hazard

What Marlborough faces

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

Inland flooding

74% of expected damage

Well above average · higher than 87% of U.S. places

Recorded about once a year in the area

Hurricanes

6% of expected damage

Well above average · higher than 82% of U.S. places

Recorded about once every 9 years in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat 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 Marlborough flood?

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

of homes in flood zones
are insured

of all homes
are insured

🏷️ 10% off flood insurance. Marlborough is in FEMA’s Community Rating System (class 8) for its flood-proofing work.

Insurance rates: Cheshire County.

Disasters that hit Marlborough

1 federal disaster brought FEMA money here

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

Brought FEMA money into MarlboroughDeclared for Cheshire County only

2005

Severe Storms and Flooding

2 households applied for aid

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

Around Marlborough

Marlborough and the towns around it

Very lowLowModerateHighVery high

Swanzeymostly inland floodingHigh

Marlboroughmostly inland floodingHigh

Troymostly inland floodingHigh

Keenemostly inland floodingHigh

Roxburymostly inland floodingHigh

Jaffreymostly inland floodingModerate

Dublinmostly inland floodingLow

Harrisvillemostly inland floodingLow

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. Marlborough covers 1 census tract, combined by population.

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

FEMA’s expected losses across Marlborough total about $1.5M a year, counting buildings, people and crops.

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.