Natural Disaster Risk in Lemont
Illinois
Risk Summary for Lemont
Lemont scores 8.0/10 (Very 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
High-risk area — review your coverage carefully
Properties in very high-risk areas often require specialized coverage that standard homeowners policies do not include. Consider flood insurance through the NFIP, wildfire-specific endorsements, or earthquake riders depending on your top hazards. Premiums in these areas can be significantly higher than average.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Lemont, Illinois
Located in the Great Lakes region in Cook County, Lemont is a city of approximately 24,192 residents. The humid continental climate that characterizes this part of Illinois — marked by bitterly cold winters and hot, humid summers — directly influences the types and severity of natural hazards present, making Lemont a community where hazard awareness has real practical value.
FEMA rates Lemont's composite natural disaster risk at 8.0 out of 10 — very high risk. Arctic air outbreaks are the leading natural hazard, with temperature plunges to dangerous lows capable of causing hypothermia and widespread infrastructure failures. Residents should also account for heat and wind risk in their preparedness planning.
Relative to other U.S. communities, Lemont's natural disaster risk is well above the U.S. national average of 4.5/10, considerably above the 5.8/10 state average. The hazard distribution here is led by cold wave and heat, as measured by FEMA across Cook County. While city-specific sub-county variation exists, these scores represent the best available federal risk estimate.
The very high risk environment in Lemont warrants proactive steps beyond standard preparedness. Review property insurance annually to ensure it covers the area's primary hazards, including cold wave. Establish a household emergency plan and keep supplies stocked, as the region's risk profile may require rapid response.
What this means for Lemont: Cold Wave preparedness
- Keep emergency heat and supplies ready in case of cold-related power outages.
- 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.
Local Factors for Lemont
These city-level factors differentiate Lemont from other communities in Cook County and provide geographic context for its hazard exposure.
Population
24,192
SuburbanGeographic Zone
Great Lakes
Lake-effect snow & wind risk
Climate Band
Moderate Continental
Latitude 41.7°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Moderate — seasonal fire risk
Fire score: 6.1/10
Coordinates
41.6769° N, 87.9762° W
Cook 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 Lemont
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Lemont
Other cities in Illinois
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.