Natural hazards · Deerfield

Deerfield, WI natural hazards

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

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

Expected damage

How exposed is Deerfield?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Deerfield to be higher than in 14% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding48%Cold waves19%Tornadoes17%Hail8%Everything else8%

By hazard

What Deerfield faces

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

Inland flooding

48% of expected damage

Well below average · higher than 21% of U.S. places

Recorded about 2 times a year in the area

Cold waves

19% of expected damage

Above average · higher than 55% of U.S. places

Recorded about 6 times a year in the area

Tornadoes

17% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about once every 18 years in the area

Hail

8% of expected damage

Well above average · higher than 88% 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 Deerfield flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Dane County.

Disasters that hit Deerfield

Federal disasters declared here

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

Brought FEMA money into DeerfieldDeclared for Dane County only

Dane County has had 17 natural disasters declared since 1953, most often severe storms and winter storms.

Around Deerfield

Deerfield and the towns around it

Very lowLowModerateHighVery high

Pleasant Springsmostly inland floodingLow

Lake Millsmostly inland floodingLow

Medinamostly inland floodingLow

Cottage Grovemostly inland floodingVery low

Deerfieldmostly inland floodingVery low

Christianamostly inland floodingVery low

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