Natural hazards · Williamstown

Williamstown, MO natural hazards

Most of the natural-hazard damage FEMA expects in Williamstown comes from inland flooding, and overall the risk is moderate for a U.S. community.

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

Expected damage

How exposed is Williamstown?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Williamstown to be higher than in 55% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding46%Heat waves18%Strong wind8%Tornadoes8%Cold waves6%Drought5%Everything else9%

By hazard

What Williamstown faces

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

Inland flooding

46% of expected damage

Above average · higher than 68% of U.S. places

Recorded about once a year in the area

Heat waves

18% of expected damage

Well above average · higher than 90% of U.S. places

Recorded about 8 times a year in the area

Strong wind

8% of expected damage

Well above average · higher than 94% of U.S. places

Recorded about 4 times a year in the area

Tornadoes

8% of expected damage

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

Recorded about once every 9 years in the area

Cold waves

6% of expected damage

Above average · higher than 61% of U.S. places

Recorded about 4 times a year in the area

Drought

5% of expected damage

Recorded about 7 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireEarthquakesLandslidesLightning

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 Williamstown flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Lewis County.

Disasters that hit Williamstown

Federal disasters declared here

None of the disasters declared for Lewis County shows FEMA aid or repair money reaching Williamstown itself in FEMA’s records.

Brought FEMA money into WilliamstownDeclared for Lewis County only

Lewis County has had 23 natural disasters declared since 1953, most often severe storms and floods.

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