Natural hazards · Granby

Granby, CT natural hazards

Most of the natural-hazard damage FEMA expects in Granby comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 13 claims here since 1978.

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

Expected damage

How exposed is Granby?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Granby to be higher than in 56% of U.S. communities, mostly from inland flooding.

Inland flooding82%Everything else18%

By hazard

What Granby faces

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

Inland flooding

82% of expected damage

Well above average · higher than 79% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Granby flood?

Every paid claim on a federal flood insurance policy in Granby, from FEMA’s records.

13paid claims since 1978

$123Kpaid to owners

1homes flooded more than once

19782026

Biggest named events

Hurricane Irene: 1 claim, $13K
Not a named storm: 1 claim, $6K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: .

Around Granby

Granby and the towns around it

Very lowLowModerateHighVery high

Barkhamstedmostly inland floodingHigh

Cantonmostly inland floodingHigh

Suffieldmostly inland floodingHigh

Simsburymostly inland floodingHigh

Granbymostly inland floodingModerate

Southwickmostly inland floodingModerate

East Granbymostly inland floodingLow

Hartlandmostly 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. Granby covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Granby’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Granby. 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 Granby total about $3.9M 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.