Natural hazards · Grenora

Grenora, ND natural hazards

Most of the natural-hazard damage FEMA expects in Grenora comes from cold waves, 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 Grenora?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Grenora to be higher than in 3% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves36%Inland flooding34%Tornadoes8%Winter weather6%Hail5%Everything else11%

By hazard

What Grenora faces

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

Cold waves

36% of expected damage

Well above average · higher than 75% of U.S. places

Recorded about 19 times a year in the area

Inland flooding

34% of expected damage

Well below average · higher than 4% of U.S. places

Recorded about once every 3 years in the area

Tornadoes

8% of expected damage

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

Recorded about once every 10 years in the area

Winter weather

6% of expected damage

Well above average · among the top 1% of U.S. places

Recorded about 16 times a year in the area

Hail

5% of expected damage

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

Recorded about 2 times a year in the area

Lower here

Ice stormsHeat 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 Grenora flood?

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

of all homes
are insured

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

Insurance rates: Williams County.

Disasters that hit Grenora

Federal disasters declared here

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

Brought FEMA money into GrenoraDeclared for Williams County only

Williams County has had 18 natural disasters declared since 1953, most often floods and severe storms.

Around Grenora

Grenora and the towns around it

Very lowLowModerateHighVery high

Grenoramostly 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. Grenora 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 Grenora’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Grenora. 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.