Skip to main content
U.S. flag

An official website of the United States government

Return to search results

Continental United States Heat Index and Wind Chill Climatology from 1973 to 2020 (NCEI Accession 0224863)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 12, 2025 | Last Modified: 2021-01-21T00:00:00.000+00:00
While regional heat index and wind chill climatologies have been created in the past, limitations of data availability and accessibility have made a nationwide product for hourly-observed variables and derived products very difficult. However, the Midwestern Regional Climate Center (MRCC) in partnership with the Western Regional Climate Center (WRCC) created a web services portal called Cli-DAP where NCEI hourly-observed data became easily accessible. As part of an NCEI additional work request, the MRCC produced a climatology of Heat Index and Wind Chill for the continental United States as a result of the increased data accessibility. In this dataset, stations files throughout the U.S. include threshold climatologies for various relevant thresholds. Individual years are also available for each threshold in these files. For heat index, probabilities of a certain heat index threshold are also available.

Complete Metadata

data.gov

An official website of the GSA's Technology Transformation Services

Looking for U.S. government information and services?
Visit USA.gov