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Daymet News

Correction to Daymet Monthly Climate Summaries

Daymet precipitation in January 2000

Daymet V3 total precipitation for January 2000 for a subset of the Daymet domain in eastern North America.

The ORNL DAAC has released a correction to “Daymet Monthly Climate Summaries on a 1-km Grid for North America, Version 3."

Daymet Data Now Available in AppEEARS

the LP DAAC logo

The Land Processes DAAC distributes NASA Earth Observing System data. They developed the AppEEARS tool to provide access to a wide range of data from instruments including MODIS, VIIRS, SMAP, and now Daymet.

Daymet Version 3 daily weather data for North America is now available through the AppEEARS subsetting tool from NASA's Land Processes DAAC.

Daymet Developer Recognized for Exceptional Research

Peter Thornton in the field

Oak Ridge National Lab Distinguished Researcher Peter Thornton in the field.

The lead developer of Daymet receives recognition as a highly cited author.

Daymet now available in the Fixed Sites Tool

Fixed Sites Subsets Tool for North America Now Includes Daymet Data

A site within the National Ecological Observatory Network demonstrates that Daymet data can now be accessed using the Fixed Sites Subsets Tool.

For study sites in North America, Daymet daily weather data is now provided alongside pre-processed MODIS and VIIRS data subsets.

Daymet Goodness-of-Fit Statistics for 2017

Daymet station-level cross-validation statistics for year 2016

Station-level cross validation of Daymet at weather station locations showing annual mean absolute error (MAE; degrees C) for the variable maximum temperature (tmax) in 2016.

Daymet provides information to access the accuracy and uncertainty of modeled climate data at each ground station location or two-degree tile.

Daymet Climatologies Updated

Daymet V3 average annual minimum temperature for 1980 and 2015

Daymet V3 average annual minimum temperature for 1980 and 2015 for a subset of the Daymet domain in Alaska and western Canada.

Daymet V3 annual and monthly climatologies for minimum and maximum temperature, precipitation, and vapor pressure have been updated to include year 2017.

Calculate Climate Anomalies from Daymet

Climate normal and anomaly calculated from Daymet

Climate anomaly (right panel) in minimum daily temperature for year 1990 compared to the long-term normal (left panel). The climate normal and anomaly were calculated for a single 2-degree tile from the Daymet dataset.

New Jupyter notebook tutorials show how to access and visualize Daymet climate data from within Python and how to calculate climate normals and anomalies.

Daymet Data for Year 2016 Now Available

Daymet data is archived and distributed by the ORNL DAAC

Daymet data is archived and distributed by the ORNL DAAC

Daymet takes in daily meteorological observations to produce high-resolution, gridded estimates of daily weather parameters across North America.

Daymet V3 Annual and Monthly Climatology

Daymet V3 average annual minimum temperature for 1980 and 2015 for a subset of the Daymet domain in Alaska and western Canada.

Daymet V3 average annual minimum temperature for 1980 and 2015 for a subset of the Daymet domain in Alaska and western Canada.

Annual and monthly climatologies for 1980-2015 for minimum and maximum temperature, precipitation, and vapor pressure are now available for Daymet V3.

Daymet Version 3 Data Now Available

Daymet V3.0 2012 Average Daily Maximum Temperature for North America, Hawaii, and Puerto Rico

Daymet V3.0 2012 Average Daily Maximum Temperature for North America, Hawaii, and Puerto Rico

The new version of Daymet data includes an expanded North American spatial extent including Canada, the United States (including Alaska), Mexico, Puerto Rico, and Hawaii.