Natural hazards · Lyman

Lyman, NH natural hazards

Most of the natural-hazard damage FEMA expects in Lyman comes from inland flooding, and overall the risk is high for a U.S. community. 7 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Lyman?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Lyman to be higher than in 78% of U.S. communities, mostly from inland flooding.

Inland flooding84%Everything else16%

By hazard

What Lyman faces

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

Inland flooding

84% of expected damage

Well above average · higher than 93% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesTornadoesHailIce 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 Lyman flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Grafton County.

Disasters that hit Lyman

7 federal disasters brought FEMA money here

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

Brought FEMA money into LymanDeclared for Grafton County only

2024

Severe Storms and Flooding

$132K to the Town of Lyman for repairs

2011

Tropical Storm Irene

$1K to the Town of Lyman for repairs

2011

Severe Storms and Flooding

$3K to the Town of Lyman for repairs

2008

Severe Storms and Flooding

$3K to the Town of Lyman for repairs

2007

Severe Storms and Flooding

$1K to the Town of Lyman for repairs

2005

Record Snow

$4K to the Town of Lyman for repairs

2005

Record And/Or Near Record Snow

$2K to the Town of Lyman for repairs

Grafton County has had 32 natural disasters declared since 1953, most often severe storms and floods.

Around Lyman

Lyman and the towns around it

Very lowLowModerateHighVery high

Lymanmostly inland floodingHigh

Monroemostly inland floodingHigh

Lisbonmostly inland floodingHigh

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