Natural Disaster Risk in Casco
Michigan
Risk Summary for Casco
Casco scores 6.2/10 (High risk), above the U.S. average of 4.5. The leading hazard is Cold Wave.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Above-average risk — check your policy limits
Standard homeowners insurance may not fully cover all hazards rated highly in this area. Verify that your policy includes adequate coverage for the top local hazards, and ask your insurer about specific endorsements or separate policies (e.g., flood, earthquake).
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Casco, Michigan
Casco, in St. Clair County, is a town of roughly 4,180 residents situated in the Great Lakes region. Its humid continental climate brings severe winters amplified by lake-effect snow and warm, humid summers, and in particular intense lake-effect snowstorms off Lake Michigan and Lake Erie. These conditions collectively define the natural hazard environment that Casco residents and property owners must navigate.
Casco's overall natural disaster risk is rated 6.2/10 (High) by FEMA's National Risk Index. Cold wave events are the primary hazard risk, driven by periodic invasions of Arctic air that drive wind chills to life-threatening levels and stress heating systems. Secondary hazards include coastal flood and ice storm.
Within Michigan, Casco's risk is, slightly above the 5.3/10 state average. Nationally, it ranks above the U.S. national average of 4.5/10. FEMA's analysis of St. Clair County identifies cold wave as the foremost hazard, followed by coastal flood and ice storm. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
With a high natural disaster risk rating, Casco residents benefit from taking preparedness seriously. Reviewing insurance coverage for cold wave and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.
What this means for Casco: Cold Wave preparedness
- Dress in layers and limit exposure during extreme cold to prevent frostbite and hypothermia.
- Protect pipes, pets, and plants, and ensure heating systems are serviced before winter.
- Keep emergency heat and supplies ready in case of cold-related power outages.
Local Factors for Casco
These city-level factors differentiate Casco from other communities in St. Clair County and provide geographic context for its hazard exposure.
Population
4,180
Small TownGeographic Zone
Great Lakes
Lake-effect snow & wind risk
Climate Band
Cool Continental
Latitude 42.8°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Lower — moist climate limits wildfire frequency
Fire score: 4.2/10
Coordinates
42.7672° N, 82.6723° W
St. Clair County
Population and coordinates from SimpleMaps US Cities data. Hazard scores from FEMA National Risk Index. Geographic classification derived from coordinates.
Recent Climate Data for Casco
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Casco
Other cities in Michigan
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. City scores inherit county-level FEMA data. For informational purposes only.