FEMA rates relative winter weather risk for the City of St. Louis as very high and reports FEMA annualized frequency of 2.415 per year for the area.
FEMA summary
FEMA's profile for the City of St. Louis reports FEMA annualized frequency of 2.415 per year for winter weather. FEMA's relative risk rating for the area is very high; the annualized frequency is a separate measure.
Hazard metrics cover FEMA county-equivalent geographies rather than individual addresses or parcels. Use local or state hazard maps before making a property, insurance, retrofit, or evacuation decision.
Select a hazard to inspect FEMA's figures for City of St. Louis.
Winter Weather
FEMA combines its area-wide loss estimate and community data in this relative rating. Event frequency appears separately below.
Relative FEMA score
100.0/100
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
The area loss estimate combines FEMA's modeled losses to buildings, population, and agriculture across City of St. Louis. It is not an estimate for a home or address.
City risk summary
For St. Louis, FEMA rates winter weather risk for the City of St. Louis as very high, with a relative score of 100.0/100. The next highest relative scores are heat wave at 99.5/100 and tornado at 98.6/100.
Using FEMA data for the City of St. Louis, St. Louis is #1 among 8 covered Missouri entries for winter weather risk. O'Fallon is about 27 straight-line miles from the St. Louis map point; its FEMA figures cover St. Charles County.
For homeowners and movers
Preparedness actions
Living in St. Louis? Learn how to handle water storage, sanitation, and security in a small space.
The map shows St. Louis. All FEMA figures on this page cover the City of St. Louis.
The FEMA figures cover the City of St. Louis. Address-level conditions require local maps, building records, and property details.
FEMA rates relative winter weather risk for the City of St. Louis as very high. Its FEMA annualized frequency is 2.415 per year. Damage at a specific address also depends on the building, soil, elevation, and exact hazard zone.
Among 8 Missouri cities covered by this directory, St. Louis is #1 for relative winter weather risk based on FEMA's score for the City of St. Louis. Homes within St. Louis can have different soil, elevation, construction, and hazard-zone conditions.
In FEMA's data for the City of St. Louis, the highest relative ratings are Winter Weather (Very High), Heat Wave (Very High), and Tornado (Relatively High). FEMA uses estimated losses and community data along with event frequency when assigning these ratings.
The hazard numbers cover the City of St. Louis. For an individual home, check local fault, flood, fire, evacuation, and building records for the exact address.
FEMA gives the City of St. Louis an overall relative risk rating of relatively moderate. Conditions at a specific home depend on its hazard zones, building type, maintenance, insurance, and access to evacuation routes and emergency services.
Start with this step: Confirm the exact hazard using official local maps before making property or insurance decisions. Know how local officials issue warnings and evacuation instructions. Use Ready.gov Be Informed and local emergency guidance for a complete plan.
Distances are measured between city coordinates.
| City | Distance | Winter Weather rating | Relative score |
|---|---|---|---|
| O'Fallon, MO | 27 mi | Very High | 97.7 |
| Springfield, IL | 85 mi | Relatively High | 92.0 |
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Hazard metrics come from FEMA National Risk Index v1.19.0 (March 2023). City population and coordinates come from SimpleMaps US Cities Database. For current conditions, use official local maps, warnings, inspections, and professional advice.