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Natural hazards · Greenfield

Greenfield, WI natural hazards

Most of the natural-hazard damage FEMA expects in Greenfield comes from cold waves, and overall the risk is very low for a U.S. community. Flood insurance has paid 7 claims here since 1981. 8 federal disasters brought FEMA money into town.

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

How exposed is Greenfield?

9
Very low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Greenfield to be higher than in 9% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves54%Inland flooding24%Tornadoes12%Heat waves8%Everything else2%
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.

Cold waves

54% of expected damage
Below average · higher than 40% of U.S. places
Recorded about 5 times a year in the area

Inland flooding

24% of expected damage
Well below average · higher than 24% of U.S. places
Recorded about 2 times a year in the area

Tornadoes

12% of expected damage
Above average · higher than 65% of U.S. places

Heat waves

8% of expected damage
Above average · higher than 56% of U.S. places
Recorded about 3 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireEarthquakesLandslidesStrong 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?

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

7paid claims since 1981
$230Kpaid to owners
1homes flooded more than once
19812026

Biggest named events

  • 2025-08-MilwaukeeMetro-Flood: 3 claims, $222K
  • 2026-04-Flooding: 1 claim, $2K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

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: Milwaukee County.
Disasters that hit Greenfield

8 federal disasters brought FEMA money here

Disasters the President declared that paid out in Greenfield itself: aid to households, or repair grants to the City of Greenfield.

Brought FEMA money into GreenfieldDeclared for Milwaukee County only
2026

Severe Storms, Tornadoes, and Flooding

28 households applied for aid $85K aid approved
2025

Severe Storms, Straight-Line Winds, Flooding, and Mudslides

251 households applied for aid $1.7M aid approved
2011

Severe Winter Storm and Snowstorm

$46K to the City of Greenfield for repairs
2010

Severe Storms, Tornadoes, and Flooding

27 households applied for aid $46K aid approved $13K to the City of Greenfield for repairs
2008

Severe Storms, Tornadoes, and Flooding

278 households applied for aid $356K aid approved $139K to the City of Greenfield for repairs
2008

Record Snow and Near Record Snow

$49K to the City of Greenfield for repairs
2000

Snow

$38K to the City of Greenfield for repairs
2000

Severe Storms, Tornadoes, and Flooding

$14K to the City of Greenfield for repairs
Milwaukee County has had 20 natural disasters declared since 1953, most often floods and severe storms.
Around Greenfield

Greenfield and the towns around it

Milwaukee: Low, mostly cold wavesGreendale: Very low, mostly cold wavesHales Corners: Very low, mostly cold wavesWest Allis: Very low, mostly cold wavesFranklin: Very low, mostly cold wavesNew Berlin: Very low, mostly inland floodingWauwatosa: Very low, mostly cold wavesGlendale: Moderate, mostly inland floodingShorewood: Moderate, mostly cold wavesSt. Francis: Very low, mostly cold wavesWest Milwaukee: Very low, mostly cold wavesMenomonee Falls: Very low, mostly inland floodingBrown Deer: Low, mostly inland floodingOak Creek: Very low, mostly cold wavesWhitefish Bay: Moderate, mostly cold wavesCudahy: Very low, mostly cold wavesBrookfield: Very low, mostly inland floodingMuskego: Low, mostly inland floodingRaymond: Very low, mostly inland floodingWaukesha: Low, mostly inland floodingVernon: Low, mostly inland floodingBrookfield: Very low, mostly inland floodingGreenfield: Very low, mostly cold waves GreenfieldMilwaukeeGreendaleHales CornersWest AllisFranklinNew Berlin
Very lowLowModerateHighVery high
Milwaukeemostly cold wavesLow
Greendalemostly cold wavesVery low
Greenfieldmostly cold wavesVery low
Hales Cornersmostly cold wavesVery low
West Allismostly cold wavesVery low
New Berlinmostly inland floodingVery low
Franklinmostly cold wavesVery 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. Greenfield covers 9 census tracts, 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 City 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 $13.0M 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01
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