Miami's Vulnerability to Extreme Heat

The increased amount of carbon and other greenhouse gases in the atmosphere is trapping more and more heat, causing average global temperatures to rise. Heat is already, on average, the leading weather-related killer in the U.S.1

heat index grid from NOAA

Extreme Heat in Miami

  • Miami currently has about 25 dangerous heat days per year, days that feel 104 degrees or hotter. By 2050 that could increase to over 100 days per year.2
  • Extreme heat and humidity is particularly dangerous for youth, elder adults, low-income individuals, and outdoor workers.
  • A hotter, wetter climate will continue to increase the length of mosquito season which can make residents more susceptible to vector-borne diseases like Zika virus.