PA
Pennsylvania
Comprehensive climate risk and disaster history profile
55
Billion-Dollar Events
$35.7B
Total Economic Impact
67
Counties
50.0
Avg Risk Score
Top Natural Hazards
Based on FEMA National Risk Index data across all 67 counties
LNDS
77.78
Avg Risk Score
Lightning
72.83
Avg Risk Score
Tropical Cyclone
70.99
Avg Risk Score
Flooding
70.01
Avg Risk Score
Strong Wind
55.33
Avg Risk Score
Freeze
54.68
Avg Risk Score
Disaster Type Breakdown
Historical billion-dollar events by category (1980-2024)
Severe Storm
33 events
$7.4B
Winter Storm
11 events
$1.3B
Tropical Cyclone
6 events
$25.2B
Drought
3 events
$1.1B
Flooding
2 events
$0.7B
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 | Philadelphia | 98.19 | 9484.0% | |
| 2 | Montgomery | 94.08 | 2142.0% | |
| 3 | Delaware | 92.27 | 5477.0% | |
| 4 | Bucks | 92.24 | 1372.0% | |
| 5 | Chester | 91.98 | 1665.0% | |
| 6 | Lancaster | 89.41 | 5586.0% | |
| 7 | Dauphin | 89.31 | 5315.0% | |
| 8 | Berks | 88.51 | 6384.0% | |
| 9 | Luzerne | 86.03 | 6346.0% | |
| 10 | York | 84.0 | 3323.0% |
Recent Major Events
Most costly billion-dollar disasters in the past 10 years
Tropical Cyclone
Aug 2024
$0.4B
2 fatalities
Severe Storm
Jul 2024
$0.5B
Severe Storm
Jun 2024
$0.3B
Severe Storm
Jun 2024
$0.2B
Drought
Jan 2024
$0.5B
12 fatalities
Severe Storm
Mar 2023
$0.7B
4 fatalities
Severe Storm
Mar 2023
$0.4B
2 fatalities
Severe Storm
Jul 2022
$0.1B
Severe Storm
May 2022
$0.3B
Tropical Cyclone
Aug 2021
$18.4B
24 fatalities
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