Philadelphia
United States
Philadelphia is projected to face a future characterized by frequent heatwaves, which are expected to exacerbate health issues among vulnerable populations. Additionally, the city is likely to experience heavy rainfall events and frequent heavy precipitation, leading to increased flooding risks and overwhelmed stormwater systems. As climate patterns shift, the combination of rising temperatures and more intense rainfall will strain infrastructure, disrupt daily life, and challenge emergency response systems. The city must prepare for these challenges, as the economic and environmental impacts of such climate hazards may intensify. Vulnerability to these risks can also affect local ecosystems, biodiversity, and urban landscapes. Comprehensive assessments and adaptive strategies will be crucial for mitigating these climate-related threats and enhancing community resilience to the changing climate. The absence of documented technology-enabled climate resilience solutions remains a gap in readiness for these impending changes.
Hazard Outlook
How will Philadelphia's projected climate hazards compare to other cities under a 3.0°C future warming scenario?
Elevation
At 2 m elevation, Philadelphia faces very high risk from coastal flooding and sea level rise.
Maximum Rainfall
Philadelphia's projected maximum rainfall of 14 mm is among the highest of all cities globally.
Maximum Temperature
Philadelphia's projected maximum temperature of 9.8°C is higher than most cities globally under a 3.0°C warming scenario.
Heavy Rainfall Days
With 10 days of heavy rainfall expected, Philadelphia ranks higher than most cities for extreme precipitation events.
Longest Heatwave
Philadelphia may experience heatwaves lasting up to 3 days, lower than most other cities.
Exposure Summary
Adaptation Priorities
Philadelphia faces high exposure to elevation, max rain and elevated exposure to max temp, heavy rain. These areas may warrant priority attention in adaptation planning.
Data source: Climate projections from the IPCC AR6 scenario analysis. See our methodology for details on how we process and interpret this data.
Deployed Solutions
Deployed climate adaptation technologies identified in Philadelphia.
No solutions have been documented for Philadelphia.
This is an archived snapshot of the database.
Recommended Solutions
Proven solutions from similar cities that could help diversify Philadelphia's resilience portfolio
Rockaway Peninsula Gas Infrastructure Resilience Program
84%National Grid commenced a program in the Rockaway Peninsula to make its gas system more resilient through accelerated replacement of leak-prone mains and installation of automated meters and other devices.
Solar PV with Battery Storage for Grid Resilience
84%New York City is advancing climate resilience through the integration of solar photovoltaic systems with battery energy storage technologies across critical infrastructure and municipal facilities.
Automated Fleet Fuel Tracking and Vehicle Data Management System
84%The Department of Citywide Administrative Services (DCAS) expanded automated fuel tracking technology across New York City's municipal fleet operations, building on successful pilot programs in the Parks and Police departments.
Coastal Storm Evacuation Route Camera Monitoring System
84%The New York City Department of Transportation installed cameras and traffic detection equipment on select coastal storm evacuation routes including Woodhaven Boulevard, Flatbush Avenue, and Hylan Boulevard.