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Heat Wave Characteristics in 50 Large U.S. Cities, 1961–2021

Metadata Updated: August 30, 2023

These maps show changes in the number of heat waves per year (frequency); the average length of heat waves in days (duration); the number of days between the first and last heat wave of the year (season length); and how hot the heat waves were, compared with the local temperature threshold for defining a heat wave (intensity). These data were analyzed from 1961 to 2021 for 50 large metropolitan areas. The size of each circle indicates the rate of change per decade. Solid-color circles represent cities where the trend was statistically significant. For more information: www.epa.gov/climate-indicators

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date August 4, 2022
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) []
Frequency Of Update unknown

Metadata Source

Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

Additional Metadata

Resource Type Dataset
Metadata Date August 4, 2022
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) []
Responsible Party U.S. Environmental Protection Agency, Office of Air and Radiation (Publisher)
Contact Email
Guid 0F13EBA6-F622-4F85-B33B-654FB80A45C1
Access Constraints
Coupled Resource
Frequency Of Update unknown
Harvest Object Id c4b06f6e-5f3d-4dfc-b6ba-9d9253b3524c
Harvest Source Id 9b3cd81e-5515-4bb7-ad3c-5ae44de9b4bd
Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
Licence None. Please check sources, scale, accuracy, currency and other available information. Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated.
Lineage
Metadata Language eng
Metadata Type geospatial
Progress
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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