Pennsylvania

Comprehensive climate risk and disaster history profile

Billion-Dollar Events

$289.9B

Total Economic Impact

Counties

50.0

Avg Risk Score

Top Natural Hazards

Based on FEMA National Risk Index data across all 67 counties

Landslide

77.78 Avg Risk Score

Coastal Flooding

76.91 Avg Risk Score

Lightning

72.83 Avg Risk Score

Hurricane

70.99 Avg Risk Score

Riverine Flooding

70.01 Avg Risk Score

Cold Wave

62.09 Avg Risk Score

Drought

57.41 Avg Risk Score

Strong Wind

55.33 Avg Risk Score

Historical billion-dollar events by category (1980-2024)

severe-storm 39 events

$73.6B

winter-storm 11 events

$15.9B

tropical-cyclone 8 events

$182.9B

drought 4 events

$12.8B

flooding 3 events

$4.8B

How disaster frequency and costs have changed over time

Counties with the highest overall risk scores based on FEMA NRI

Rank	County	Risk Score	Risk Rating	SVI Percentile
1	Philadelphia	98.19	Relatively High	94.7%
2	Montgomery	94.08	Relatively Moderate	21.2%
3	Delaware	92.27	Relatively Moderate	56.5%
4	Bucks	92.24	Relatively Moderate	13.2%
5	Chester	91.98	Relatively Moderate	12.4%
6	Lancaster	89.41	Relatively Moderate	54.0%
7	Dauphin	89.31	Relatively Moderate	54.8%
8	Berks	88.51	Relatively Moderate	66.6%
9	Luzerne	86.03	Relatively Moderate	69.4%
10	York	84.0	Relatively Moderate	33.8%