Natural hazards · Hanover

Hanover, OH natural hazards

Most of the natural-hazard damage FEMA expects in Hanover comes from inland flooding, and overall the risk is low for a U.S. community. Flood insurance has paid 6 claims here since 1996.

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

Expected damage

How exposed is Hanover?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Hanover to be higher than in 33% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding45%Tornadoes28%Cold waves15%Everything else12%

By hazard

What Hanover faces

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

Inland flooding

45% of expected damage

Below average · higher than 41% of U.S. places

Recorded about 3 times a year in the area

Tornadoes

28% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about once every 43 years in the area

Cold waves

15% of expected damage

Above average · higher than 59% of U.S. places

Recorded about 3 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherHeat 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 Hanover flood?

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

6paid claims since 1996

$162Kpaid to owners

0homes flooded more than once

19962026

Biggest named events

March storm: 1 claim, $11K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Butler County.

Disasters that hit Hanover

Federal disasters declared here

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

Brought FEMA money into HanoverDeclared for Butler County only

Butler County has had 12 natural disasters declared since 1953, most often severe storms and floods.

Around Hanover

Hanover and the towns around it

Very lowLowModerateHighVery high

St. Clairmostly inland floodingVery high

Rossmostly inland floodingHigh

Milfordmostly inland floodingHigh

Hamiltonmostly inland floodingModerate

Reilymostly inland floodingModerate

Hanovermostly inland floodingLow

Millvillemostly 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. Hanover covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Hanover’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Hanover. 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 Hanover total about $2.1M 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.