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CDC WONDER: Daily Air Temperatures and Heat Index

Metadata Updated: April 25, 2021

The Daily Air Temperature and Heat Index data available on CDC WONDER are county-level daily average air temperatures and heat index measures spanning the years 1979-2010. Temperature data are available in Fahrenheit or Celsius scales. Reported measures are the average temperature, number of observations, and range for the daily maximum and minimum air temperatures, and also percent coverage for the daily maximum heat index. Data are available by place (combined 48 contiguous states, region, division, state, county), time (year, month, day) and specified maximum and minimum air temperature, and heat index value. The data are derived from the North America Land Data Assimilation System (NLDAS) through NLDAS Phase 2, a collaboration project among several groups: the National Oceanic and Atmospheric Administration (NOAA) National Centers for Environmental Prediction (NCEP) Environmental Modeling Center (EMC), the National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC), Princeton University, the National Weather Service (NWS) Office of Hydrological Development (OHD), the University of Washington, and the NCEP Climate Prediction Center (CPC). In a study funded by the NASA Applied Sciences Program/Public Health Program, scientists at NASA Marshall Space Flight Center/ Universities Space Research Association developed the analysis to produce the data available on CDC WONDER.

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

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Metadata Created Date November 10, 2020
Metadata Updated Date April 25, 2021

Metadata Source

Harvested from

Additional Metadata

Resource Type Dataset
Metadata Created Date November 10, 2020
Metadata Updated Date April 25, 2021
Publisher Centers for Disease Control and Prevention, Department of Health & Human Services
Identifier 96b92ba4-d63a-40ac-820b-f955d9f0f0f9
Data First Published 2012-08-03
Data Last Modified 2021-03-12
Category State
Public Access Level public
Bureau Code 009:20
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Data Quality True
Data Dictionary
Harvest Object Id 16030175-bbe9-4038-8051-e75b29af940e
Harvest Source Id 651e43b2-321c-4e4c-b86a-835cfc342cb0
Harvest Source Title
Homepage URL
Program Code 010:167
Source Datajson Identifier True
Source Hash 7e152024734474af43145964fa0740d08d5cba7c
Source Schema Version 1.1
Temporal 1979-01-01T00:00:00-05:00/2010-12-31T00:00:00-05:00

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