5
High
Extreme Heat Risk in Pennsylvania
Overall State Risk Score: 5/10
Pennsylvania faces high extreme-heat risk. 3 of 67 counties (4%) rated high or very high by FEMA National Risk Index.
Seasonal pattern: June-September
Highest-Risk Cities in Pennsylvania
Notable Extreme Heat Events
Extreme Heat - Northeastern United States
July 24, 2025 — WARNING
Philadelphia, PA
54,500,000 people exposed; $15,778,747M capital exposed
Extreme Heat - Northeastern United States
August 9, 2021 — WARNING
Philadelphia, PA
Impact data not available
Other Hazards in Pennsylvania
Monitor Extreme Heat Activity in Pennsylvania
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