Natural hazards · Greenfield

Greenfield, WI natural hazards

Most of the natural-hazard damage FEMA expects in Greenfield 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 Greenfield?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Greenfield to be higher than in 42% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding46%Cold waves23%Tornadoes16%Hail7%Everything else8%

By hazard

What Greenfield 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 57% of U.S. places

Recorded about 2 times a year in the area

Cold waves

23% of expected damage

Below average · higher than 35% of U.S. places

Recorded about 6 times a year in the area

Tornadoes

16% of expected damage

Well above average · higher than 80% of U.S. places

Recorded about once every 72 years in the area

Hail

7% of expected damage

Well above average · higher than 92% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesIce 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 Greenfield flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Sauk County.

Disasters that hit Greenfield

Federal disasters declared here

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

Brought FEMA money into GreenfieldDeclared for Sauk County only

Sauk County has had 13 natural disasters declared since 1953, most often severe storms and floods.

Around Greenfield

Greenfield and the towns around it

Very lowLowModerateHighVery high

Caledoniamostly inland floodingVery high

Merrimacmostly inland floodingVery high

Fairfieldmostly inland floodingModerate

Greenfieldmostly inland floodingModerate

Baraboomostly 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. Greenfield covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Greenfield’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Greenfield. 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 Greenfield total about $1.3M 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.