Skip to main content

Description

This dataset provides Daymet Version 4 R1 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. In Version 4 R1, all 2020 and 2021 files were updated to improve predictions especially in high-latitude areas. It was found that input files used for deriving 2020 and 2021 data had, for a significant portion of Canadian weather stations, missing daily variable readings for the month of January. NCEI has corrected issues with the Environment Canada ingest feed which led to the missing readings. The revised 2020 and 2021 Daymet V4 R1 files were derived with new GHCNd inputs. Files outside of 2020 and 2021 have not changed from the previous V4 release.

Product Summary

Platforms
MODELS
Instruments
Computer
Spatial Extent

N: 82.9143 S: 14.0749 E: -53.0567 W: -178.133

Location
NORTH AMERICA ,
PUERTO RICO
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1950-01-01 to 2025-12-31
Data Partner
THE OAK RIDGE NATIONAL LABORATORY (ORNL) DISTRIBUTED ACTIVE ARCHIVE CENTER (DAAC) (ORNL_DAAC)
Concept ID
C2532426483-ORNL_CLOUD
Data State
COMPLETE
Number of Files/Granules
1176
Processing Level
4
Published
Updated
Science Keywords
Maximum/Minimum Temperature ,
24 Hour Precipitation Amount ,
Maximum/Minimum Temperature ,
Snow Water Equivalent ,
Vapor Pressure ,
Shortwave Radiation

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Thornton, M. M., Shrestha, R., Wei, Y., Thornton, P. E., & Kao, S.-C. (2022). Daymet: Daily Surface Weather Data on a 1-km Grid for North America, Version 4 R1 (Version 4.1). ORNL Distributed Active Archive Center. https://doi.org/10.3334/ORNLDAAC/2129 Date Accessed: 2026-06-01

Documents

Publications Citing This Dataset

Filters
Title Year Author Topic
Salinity and Moisture Influence CO<SUB>2</SUB> and CH<SUB>4</SUB> Emissions From High-Latitude Coastal Soils Barr, B. N., Kelsey, K. C., Leffler, A. J., Petit Bon, M., Beard, K. H. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Satellite data and physics-constrained machine learning for estimating effective precipitation in the Western United States and application for monitoring groundwater irrigation Hasan, Md Fahim, Smith, Ryan G., Majumdar, Sayantan, Huntington, Justin L., Alves Meira Neto, Antonio, Minor, Blake A. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
The diel niche of brown bears: constraints on adaptive capacity in humanmodified landscapes Donatelli, Aurora, Cirovic, Dusko, Haroldson, Mark A., Huber, uro, Kindberg, Jonas, Kojola, Ilpo, Kusak, Josip, Mastrantonio, Gianluca, Ordiz, Andres, Reljic, Slaven, Santini, Luca, van Manen, Frank T., Ciucci, Paolo Vegetation Index, Normalized Difference Vegetation Index (NDVI), Enhanced Vegetation Index (EVI), Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
The Impact of Power Outages on Cardiovascular Hospitalizations Among Medicare Fee-for-service Enrollees in New York State, 20172018 Do, Vivian, McBrien, Heather Kathleen, Edmondson, Donald, Kioumourtzoglou, Marianthi-Anna, Casey, Joan Allison Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Termination strategies for high biomass cereal rye cover crop in soybean planting green systems Felsman, Jacob H., Mobli, Ahmadreza, Nunes, Jose J., DeWerff, Ryan P., Stoltenberg, David E., Baxter, Christopher A., Werle, Rodrigo Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Stochastic Ecohydrological Perspective on Semi-Distributed Rainfall-Runoff Dynamics Bartlett, Mark S., Cultra, Elizabeth, Geldner, Nathan, Porporato, Amilcare Evapotranspiration, Photosynthesis, Primary Production, Latent Heat Flux, Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
SPEI Drought Forecasting in Central Mexico Carrillo-Carrillo, Mauricio, Ibanez-Castillo, Laura, Arteaga-Ramirez, Ramon, Arevalo-Galarza, Gustavo Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Spatio-Temporal Analysis of Drought with SPEI in the State of Mexico and Mexico City Carrillo-Carrillo, Mauricio, Ibanez-Castillo, Laura, Arteaga-Ramirez, Ramon, Arevalo-Galarza, Gustavo Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Riverine heat waves on the rise, outpacing air heat waves Sadayappan, Kayalvizhi, Li, Li Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Seasonal dynamics of a coupled hillslope river system in the Arctic revealed by semi-automated satellite image analysis Erikson, Christian M., Dethier, Evan N., Renshaw, Carl E. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Survival of elongate hemlock scale (Hemiptera: Diaspididae) with prolonged cold exposure: overwintering mortality risk across North America Moore, Clarissa, Aukema, Brian H, Leone, Julia B, Jetton, Robert M, Petrice, Toby R, Ambourn, Angie, Venette, Robert C Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Sequential Precipitation Input Tagging (SPIT) to Estimate Water Transit Times and Hydrologic Tracer Dynamics Within Water Tagging Enabled Hydrologic Models Butler, Zachariah, Good, Stephen, Hu, Huancui, Chen, Xingyuan, Dugger, Aubrey Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Soybean yield response to management practices (440 years) and soil health parameters Silva, Tatiane Severo, Malone, Lindsay Chamberlain, Ruark, Matthew D., Mourtzinis, Spyridon, Lee, Chad D., Jordan, David, Kandel, Herman J., Ross, Jeremy, Gaska, John M., Lauer, Joseph G., Lindsey, Laura E., Singh, Maninder Pal, Licht, Mark A., Plumblee, Michael, Vann, Rachel A., Werle, Rodrigo, Naeve, Seth L., Roberts, Trenton L., Conley, Shawn P. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Sociodemographic disparities in exposures to inorganic contaminants in United States public water systems Dai, Mona Q., Hu, Xindi C., Coull, Brent A., Campbell, Chris, Andrews, David Q., Naidenko, Olga V., Sunderland, Elsie M. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
The National integrated water availability assessment, water years 201020 Stets, Edward G., Archer, Althea A., Degnan, James R., Erickson, Melinda L., Gorski, Galen, Medalie, Laura, Scholl, Martha A. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Water supply in the conterminous United States, Alaska, Hawaii, and Puerto Rico, water years 201020 Gorski, Galen, Stets, Edward, Scholl, Martha, Degnan, James R., Mullaney, John R., Galanter, Amy, Martinez, Anthony J., Padilla, Julie, LaFontaine, Jacob, Corson-Dosch, Hayley, Shapiro, Allen Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Variation in hydraulic vulnerability of juvenile ponderosa pines in the southwestern United States Pinos, Juan, Hubbard, Robert M., Frank, John, Burjoski, Vesper, Brewer, Taylor E., Bradford, John B., Schlaepfer, Daniel R., Petrie, Matthew D. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Using Entity-Aware LSTM to Enhance Streamflow Predictions in Transboundary and Large Lake Basins Park, Yunsu, Liu, Xiaofeng, Zhu, Yuyue, Hong, Yi Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
The Trade-Off between Yield and Nitrogen Pollution under Excessive Rainfall: Evidence from On-Farm Field Experiments in Iowa Choi, Eseul, DePaula, Guilherme, Kyveryga, Peter, Fey, Suzanne Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Upscaling Snow Accumulation and Ablation Using Machine Learning Burdett, H., Craig, J. R. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Uneven heat burden in the sunshine state: Spatial patterns and socio-economic disparities of heat-related illness in Florida Ma, Cong, Qiang, Yi, Zhang, Kai Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
The Sensitivity of Future Hydroclimate Projections to Topography and Large-Scale Dust Forcing in the Luquillo Mountains of Eastern Puerto Rico Preece, J., Johnson, C., Mote, T., Miller, P., Williams, M. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Toward ecological forecasting of West Nile virus in Florida: Insights from two decades of sentinel chicken surveillance Baecher, J. Alex, Akshay, V.A., Guralnick, Robert P., Bauer, Amy M., Tavares, Yasmin N., Sanchez, Yesenia, Thorson, James T., Campbell, Lindsay P. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Tidalhydrological dynamics of water temperature across freshwater forested wetlands on the northeastern Pacific coast Buenau, Kate E., Diefenderfer, Heida L., Mckeon, Maggie A., Borde, Amy B. Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
Physically Based Dimensionless Features for Pluvial Flood Mapping With Machine Learning Bartlett, Mark S., Van Blitterswyk, Jared, Farella, Martha, Li, Jinshu, Smith, Curtis, Parolari, Anthony J., Krishnamoorthy, Lalitha, Mrad, Assaad Maximum/Minimum Temperature, 24 Hour Precipitation Amount, Snow Water Equivalent, Shortwave Radiation, Vapor Pressure
You're viewing 100 of 229