OH
Ohio
Comprehensive climate risk and disaster history profile
74
Billion-Dollar Events
$50.3B
Total Economic Impact
88
Counties
45.69
Avg Risk Score
Top Natural Hazards
Based on FEMA National Risk Index data across all 88 counties
ISTM
63.79
Avg Risk Score
Flooding
63.68
Avg Risk Score
Winter Storm
62.55
Avg Risk Score
Tornado
60.38
Avg Risk Score
Strong Wind
59.37
Avg Risk Score
Lightning
59.09
Avg Risk Score
Disaster Type Breakdown
Historical billion-dollar events by category (1980-2024)
Severe Storm
56 events
$22.9B
Winter Storm
6 events
$0.5B
Drought
5 events
$4.7B
Flooding
4 events
$1.5B
Tropical Cyclone
2 events
$20.6B
Freeze
1 events
$0.1B
Disaster Trends by Decade
How disaster frequency and costs have changed over time
Highest Risk Counties
Counties with the highest overall risk scores based on FEMA NRI
| Rank | County | Risk Score | Risk Rating | SVI Percentile |
|---|---|---|---|---|
| 1 | Hamilton | 93.45 | 6006.0% | |
| 2 | Franklin | 92.46 | 6356.0% | |
| 3 | Cuyahoga | 91.25 | 7333.0% | |
| 4 | Butler | 87.97 | 3673.0% | |
| 5 | Montgomery | 86.1 | 7171.0% | |
| 6 | Summit | 85.52 | 4586.0% | |
| 7 | Lucas | 84.06 | 7101.0% | |
| 8 | Stark | 82.12 | 3230.0% | |
| 9 | Trumbull | 81.42 | 4920.0% | |
| 10 | Mahoning | 73.88 | 6378.0% |
Recent Major Events
Most costly billion-dollar disasters in the past 10 years
Severe Storm
Apr 2025
$0.7B
4 fatalities
Severe Storm
Jun 2024
$0.2B
Severe Storm
May 2024
$0.5B
Severe Storm
Apr 2024
$0.6B
Severe Storm
Mar 2024
$1.0B
Severe Storm
Feb 2024
$0.3B
Severe Storm
Jul 2023
$0.4B
Severe Storm
Jun 2023
$0.5B
Severe Storm
Apr 2023
$0.4B
Severe Storm
Mar 2023
$0.7B
4 fatalities
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