Meet the 2021 Campaign Cities

San Diego, California

Year: 2021

Campaign Lead Organization(s): The San Diego Foundation and City of San Diego

Get Involved:

Everett Au |


More hot days by the end of the century compared to the beginning (US CRT Climate Explorer)


Population that does not speak English "very well" compared to 8.4% national average. (2019 ACS - US Census)


Population living in poverty, compared to 12.5% national average. (2019 ACS - US Census)


Population living alone, compared to 15% national average. (2019 ACS - US Census)


The City of San Diego (City) has a population of 1.4 million, making it the eighth-largest city in the United States. It is an incredibly diverse population with nearly 41% of the population speaking a language other than English at home. The City is currently in the process of developing a climate adaptation and resiliency plan, Climate Resilient SD, to reduce vulnerability to projected climate changes. One major climate challenge the City is planning for is more frequent and intense heat events. Like many other large urban areas, San Diego has seen an increase in heat-related hospitalizations and morbidity in response to hot-weather episodes. Heat events are not felt equally across the City’s communities, with some populations more vulnerable to heat or with fewer resources to adapt and respond. The City is currently working to develop a heat vulnerability index that will identify which areas of the City are more vulnerable to extreme heat events based off social and environmental variables. To better inform this vulnerability index, greater granularity in the heat data inputs is needed. 
Participation in the NIHHIS-CAPA cohort will help the City refine its heat mapping data to better understand distribution of heat at a much higher resolution. This provides great value to the City as it will help identify specific locations for heat adaptation strategies to best serve the communities that will be most impacted by these climate change driven events. Here the City will also be able to deeply engage with its communities to foster their involvement in climate adaptation action, as well as provide education opportunities to the community to better understand climate change projections for their communities and available adaptation actions. 

Lead Organization(s)

  • The San Diego Foundation
  • City of San Diego

Partner Organizations

Community Based Organizations to be identified through such networks as the City of San Diego’s Equity Stakeholder Working Group, and The San Diego Foundation’s Thrive Outside San Diego Initiative.

Campaign Goals / Anticipated Outcomes

Collect high-resolution data on heat dispersion across the City, particularly in its Communities of Concern as identified through the City’s Climate Equity Index (CEI). 
Incorporate detailed heat data into the City’s heat vulnerability index to refine the index and provide a valuable planning tool for the City to use when implementing heat adaptation strategies. 
Foster greater awareness and knowledge of urban heat island effects and the potential impact that climate change will have among community members. 



NIHHIS is made possible by our participating agencies.













NIHHIS Headquarters

Address: 1315 East-West Hwy, Suite 1100
Silver Spring, MD 20910

About Us

NIHHIS is an integrated information system that builds understanding of the problem of extreme heat, defines demand for climate services that enhance societal resilience, develops science-based products and services from a sustained climate science research program, and improves capacity, communication, and societal understanding of the problem in order to reduce morbidity and mortality due to extreme heat.  NIHHIS is a jointly developed system by the Centers for Disease Control and Prevention (CDC) and the National Oceanic and Atmospheric Administration.

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