Skip to main content
ORNL DAAC HomeNASA Home
DAAC Home > Get Data > NASA Projects > Daymet > Landing page

Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 4

Overview

DOIhttps://doi.org/10.3334/ORNLDAAC/1840
Version4
Project
Published2020-12-15
Updated2021-04-08
Usage6889 downloads
User GuideResources

Description

This dataset provides Daymet Version 4 data as gridded estimates of daily weather parameters for North America, Hawaii, and Puerto Rico. Daymet variables include the following parameters: minimum temperature, maximum temperature, precipitation, shortwave radiation, vapor pressure, snow water equivalent, and day length. The dataset covers the period from January 1, 1980, to December 31 (or December 30 in leap years) of the most recent full calendar year for the Continental North America and Hawaii spatial regions. Data for Puerto Rico is available starting in 1950. Each subsequent year is processed individually at the close of a calendar year. Daymet variables are provided as individual files, by variable and year, at a 1 km x 1 km spatial resolution and a daily temporal resolution. Areas of Hawaii and Puerto Rico are available as files separate from the continental North America. Data are in a North America Lambert Conformal Conic projection and are distributed in a standardized Climate and Forecast (CF)-compliant netCDF file format.

Science Keywords

  • ATMOSPHERE
  • ATMOSPHERIC RADIATION
  • SHORTWAVE RADIATION
  • ATMOSPHERE
  • ATMOSPHERIC WATER VAPOR
  • WATER VAPOR INDICATORS
  • VAPOR PRESSURE
  • ATMOSPHERE
  • PRECIPITATION
  • PRECIPITATION AMOUNT
  • 24 HOUR PRECIPITATION AMOUNT
  • ATMOSPHERE
  • ATMOSPHERIC TEMPERATURE
  • SURFACE TEMPERATURE
  • MAXIMUM/MINIMUM TEMPERATURE
  • ATMOSPHERE
  • PRECIPITATION
  • SNOW WATER EQUIVALENT

Data Use and Citation

Download citation from Datacite
RISBibTexOther
Crosscite Citation Formatter
Thornton, M.M., R. Shrestha, Y. Wei, P.E. Thornton, S. Kao, and B.E. Wilson. 2020. Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 4. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1840

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy. See our Data Use and Citation Policy for more information.

Data Files

Sign in to download files.

Companion Files

Expand for companion files
Toggle Companion Files

Sign in to download files.

Dataset has 1 companion files.

  • Daymet_Daily_V4.pdf

Advanced Data Access through THREDDS Data Server

THREDDS Data Access: Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 4 THREDDS Data Access.

See our THREDDS Data Server Catalog Service page for more information.

Additional Resources

TypeTitle
TutorialSpatial and Temporal Subsets of Daymet Data Using the THREDDS NetCDF Subset Service (NCSS) for Grids
Codegeoknife package version 1.5.5
TutorialAccess Distributed NASA Earth Science Data from OPeNDAP Services using R
TutorialDaymet Single Pixel Data Extraction - Web Services
WebinarAccessing Daymet Data Through Web-Based Tools and Services
CodeDaymetPy: A python library for accessing Daymet surface weather data
CodeFedData - Getting assorted geospatial data into R
CodeDaymet Single Pixel Batch Scripts
CodePyGeoHydro - a python library designed to aid in watershed analysis
Classroom ExerciseGEOG 576 EX3 Shapefile projection and daymet grids
TutorialAccessing data through ORNL DAAC web services
CodeA Programmatic Interface to the Daymet Web Services: DaymetR
TutorialPython Methods to Derive a Seasonal Mean from Daymet Data
WebinarNetCD-what? An Ecologist's Guide to Working with Daymet and other NetCDF-formatted Data

Version History

VersionDataset TitlePublished
2Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 22014-05-15
3.4Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 32016-07-15
4Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 42020-12-15