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Cities / St. Louis

St. Louis

United States

St. Louis is projected to face dangerous heat extremes and frequent heatwaves in the future, necessitating effective climate resilience measures. The city has developed and is implementing a portfolio of technology-enabled solutions including early warning systems and alerts for heat, wildfires, air quality, floods, and water challenges. Additionally, it focuses on urban greening initiatives, which enhance green spaces, street trees, parks, and reforestation efforts. By integrating these current and proposed actions, St. Louis aims to improve community well-being and resilience against climate hazards, fostering a sustainable urban environment capable of adapting to the changing climate.

Hazard Outlook

How will St. Louis's projected climate hazards compare to other cities under a 3.0°C future warming scenario?

Maximum Temperature

57th percentile Elevated exposure

St. Louis's projected maximum temperature of 9.8°C is higher than most cities globally under a 3.0°C warming scenario.

St. Louis
5.0 Cooler → Hotter 13

Maximum Rainfall

51st percentile Elevated exposure

St. Louis's projected maximum rainfall of 11 mm is higher than most cities globally.

St. Louis
0.0 Lower → Higher 35

Elevation

60th percentile Moderate exposure

At 151 m elevation, St. Louis faces moderate risk from coastal flooding and sea level rise.

St. Louis
-8.0 Lower → Higher 4k

Longest Heatwave

21st percentile Lower exposure

St. Louis may experience heatwaves lasting up to 4 days, lower than most other cities.

St. Louis
0.0 Shorter → Longer 92

Heavy Rainfall Days

18th percentile Lower exposure

With 9 days of heavy rainfall expected, St. Louis ranks lower than most cities for extreme precipitation events.

St. Louis
0.0 Fewer → More 36

Exposure Summary

Max Temp
Max Rain
Elevation
Heatwave
Heavy Rain

Adaptation Priorities

St. Louis faces elevated exposure to max temp, max 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 St. Louis.

Heat Emergency Registry and Surveillance System

The St. Louis Department of Health utilizes a specialized database of residents who may require assistance during emergencies, combined with...

GIS-Based Urban Tree Inventory and Management System

The City of St. Louis Forestry Division maintains an active database of trees that it manages, with a GIS-based inventory for street trees and nearly...

Recommended Solutions

Proven solutions from similar cities that could help diversify St. Louis's resilience portfolio

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