Natural hazards · Grayson

Grayson, OK natural hazards

Most of the natural-hazard damage FEMA expects in Grayson comes from inland flooding, and overall the risk is very high for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Grayson?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Grayson to be higher than in 85% of U.S. communities, mostly from inland flooding.

Inland flooding36%Wildfire15%Tornadoes13%Heat waves9%Ice storms8%Cold waves8%Everything else12%

By hazard

What Grayson faces

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

Inland flooding

36% of expected damage

Well above average · higher than 86% of U.S. places

Recorded about 3 times a year in the area

Wildfire

15% of expected damage

Well above average · higher than 98% of U.S. places

Tornadoes

13% of expected damage

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

Recorded about once every 9 years in the area

Heat waves

9% of expected damage

Well above average · higher than 76% of U.S. places

Recorded about 26 times a year in the area

Ice storms

8% of expected damage

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

Recorded about once a year in the area

Cold waves

8% of expected damage

Above average · higher than 56% of U.S. places

Recorded about once a year in the area

Lower here

HurricanesHailWinter weatherEarthquakesLandslidesStrong 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 Grayson flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Okmulgee County.

Disasters that hit Grayson

3 federal disasters brought FEMA money here

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

Brought FEMA money into GraysonDeclared for Okmulgee County only

2022

Severe Storms, Tornadoes, and Flooding

1 household applied for aid

2001

Severe Storms, Flooding, and Tornadoes

$3K to the Town of Grayson for repairs

2000

Severe Winter Ice Storm

$8K to the Town of Grayson for repairs

Okmulgee County has had 32 natural disasters declared since 1953, most often severe storms and tornadoes.

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