Climate Data

Daymet: Daily Surface Weather and Climatological Summaries

Developed by Dr. Peter E Thornton to fulfill the need for daily climatological data necessary for plant growth model inputs, Daymet generates daily, gridded surfaces of temperature, precipitation, humidity, and radiation over large regions and takes into account areas of complex terrain.

Key Strengths:

  • Very high resolution over area covered.

Years of Record

1980/01 to 2015/12
temporal metadataID:



Climatology | Daily

Data Time Period Extended?

yes, data set is extended


Spatial Resolution

1km x 1km in 2x2 tiles

Ocean or Land

Land Only

Vertical Levels

Suggested Data Citation

A list of suggested citations is at:

Data Access: Please Cite data sources, following the data providers' instructions.

Key Figures

Click the thumbnails to view larger sizes



Climate Data Guide Image: Daymet Daily total precipitation: Daymet tile number 12296 for year 2010 and day 182. (Climate Data Guide; D. Shea)

Cite this page

National Center for Atmospheric Research Staff (Eds). Last modified 10 Dec 2019. "The Climate Data Guide: Daymet: Daily Surface Weather and Climatological Summaries." Retrieved from

Acknowledgement of any material taken from this page is appreciated. On behalf of experts who have contributed data, advice, and/or figures, please cite their work as well.