Heat Index – Average Days Above 98th Percentile

This updated dataset reports the total number of days in which an extreme heat event was above the 98th percentile between 2017-2019 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN).

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Heat Index – Average Days Above 99th Percentile

This updated dataset reports the total number of days in which an extreme heat event was above the 99th percentile between 2017-2019 at the county level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN).

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PRISM 30-Year Average Temperature, 1981 – 2010

This layer depicts average annual temperature based on data from 1981 to 2010. Data was obtained from the PRISM Climate Group at Oregon State University. PRISM models climate information using a process which incorporates a digital elevation model. Monthly average data is also available.

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