Natural hazards · Clarno

Clarno, WI natural hazards

Most of the natural-hazard damage FEMA expects in Clarno comes from cold waves, and overall the risk is very low for a U.S. community. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Clarno?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Clarno to be higher than in 8% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves36%Inland flooding23%Tornadoes18%Hail11%Strong wind5%Everything else6%

By hazard

What Clarno 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

Below average · higher than 36% of U.S. places

Recorded about 6 times a year in the area

Inland flooding

23% of expected damage

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

Recorded about 2 times a year in the area

Tornadoes

18% of expected damage

Well above average · higher than 82% of U.S. places

Hail

11% of expected damage

Well above average · higher than 92% of U.S. places

Recorded about 4 times a year in the area

Strong wind

5% of expected damage

Well above average · higher than 87% of U.S. places

Recorded about 5 times a year in the area

Lower here

HurricanesIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

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 Clarno flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Green County.

Disasters that hit Clarno

4 federal disasters brought FEMA money here

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

Brought FEMA money into ClarnoDeclared for Green County only

2011

Severe Winter Storm and Snowstorm

$7K to the Town of Clarno for repairs

2008

Record Snow and Near Record Snow

$6K to the Town of Clarno for repairs

2000

Snow

$5K to the Town of Clarno for repairs

2000

Severe Storms, Tornadoes, and Flooding

$3K to the Town of Clarno for repairs

Green County has had 15 natural disasters declared since 1953, most often severe storms and winter storms.

Around Clarno

Clarno and the towns around it

Very lowLowModerateHighVery high

Cadizmostly inland floodingLow

Jeffersonmostly inland floodingLow

Onecomostly inland floodingLow

Sylvestermostly inland floodingLow

Monroemostly cold wavesVery low

Clarnomostly 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. Clarno covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Clarno’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Clarno. 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 Clarno total about $2.6M 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.