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Daymet Home
Average Daily Tmax, 2017

The Daymet dataset provides gridded estimates of daily weather parameters. Seven surface weather parameters are available at a daily time step, 1 km x 1 km spatial resolution, with a North American spatial extent. Access to the Daymet dataset is available from the ORNL DAAC through a variety of tools and formats allowing a rich resource of daily surface meteorology.

Daymet is supported by NASA through the Earth Science Data and Information System ( ESDIS ) and the Terrestrial Ecosystem Program. The continued development of the Daymet algorithm and processing is also supported by the Office of Biological and Environmental Research within the U.S. Department of Energy's Office of Science.