Natural hazards · Green Bay

Green Bay, WI natural hazards

Most of the natural-hazard damage FEMA expects in Green Bay 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 Green Bay?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Green Bay to be higher than in 6% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding51%Cold waves29%Tornadoes11%Everything else9%

By hazard

What Green Bay faces

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

Inland flooding

51% of expected damage

Well below average · higher than 18% of U.S. places

Recorded about once a year in the area

Cold waves

29% of expected damage

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

Recorded about 6 times a year in the area

Tornadoes

11% of expected damage

Above average · higher than 58% of U.S. places

Recorded about once every 36 years in the area

Lower here

Coastal floodingHurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic 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 Green Bay flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Brown County.

Disasters that hit Green Bay

Federal disasters declared here

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

Brought FEMA money into Green BayDeclared for Brown County only

Brown County has had 7 natural disasters declared since 1953, most often severe storms and floods.

Around Green Bay

Green Bay and the towns around it

Very lowLowModerateHighVery high

Green Baymostly inland floodingVery low

Scottmostly inland floodingVery low

Humboldtmostly inland floodingVery low

Red Rivermostly inland floodingVery low

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