Natural hazards · Sumner

Sumner, WI natural hazards

Most of the natural-hazard damage FEMA expects in Sumner comes from cold waves, and overall the risk is low for a U.S. community.

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

Expected damage

How exposed is Sumner?

Low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Sumner to be higher than in 28% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves42%Inland flooding32%Tornadoes10%Everything else16%

By hazard

What Sumner faces

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

Cold waves

42% of expected damage

Well below average · higher than 20% of U.S. places

Recorded about 9 times a year in the area

Inland flooding

32% of expected damage

Below average · higher than 40% of U.S. places

Recorded about once every 4 years in the area

Tornadoes

10% of expected damage

Above average · higher than 73% of U.S. places

Recorded about once every 27 years in the area

Lower here

HailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Sumner flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Barron County.

Disasters that hit Sumner

Federal disasters declared here

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

Brought FEMA money into SumnerDeclared for Barron County only

Barron County has had 8 natural disasters declared since 1953, most often floods and tornadoes.

Around Sumner

Sumner and the towns around it

Very lowLowModerateHighVery high

Stricklandmostly inland floodingModerate

Chetekmostly inland floodingModerate

Sumnermostly cold wavesLow

Doylemostly cold wavesLow

Stanleymostly cold wavesLow

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. Sumner covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Sumner’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Sumner. 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 Sumner total about $3.0M 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.