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Projected Climate Data for IFSM

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Download Available

Downscaled Climate Data

Downscaled climate data (1950 to 2100) are available for 78 locations across the United States formatted for use in IFSM. Each location includes 18 climate files created using 9 general circulation models (GCM) and 2 projected emission scenarios. Emission scenarios include Representative Concentration Pathways (RCP) 4.5 and 8.5 where RCP 4.5 represents a somewhat optimistic outlook for reducing greenhouse gas emissions and 8.5 represents continuing the current trend for emissions. To download long term weather data, click the link below to visit the download directory and download .zip files for available sites:

Download Climate Data

When the downloaded file is expanded, you will obtain 18 individual weather files for that location. The name of the file includes an abbreviation for the GCM and RCP used to create that file. Names and abbreviations for the 9 GCMs are as follows:

General Circulation Model


Community Climate System Model 4


Centre National de Recherches Meteorologiques Circulation Model 5


Commonwealth Scientific and Industrial Research Organization Mark 3


Hadley Centre Global Environment Model 2 CC


Institute for Numerical Mathematics Climate Model 4


Institut Pierre Simon Laplace Coupled Model 5A LR


Model for Interdisciplinary Research on Climate 5


Max-Planck Institute Earth System Model LR


Meteorological Research Institute Coupled Global Climate Model 3



Each file contains 150 years of daily weather data in a text format to be read and used by IFSM. For use in IFSM, the files must be placed in the same folder along with other input parameter files used by the model. The desired weather file can then be selected within IFSM where any period of up to 26 years within the 150 years can be simulated. This provides weather patterns for simulating farms from recent history through the end of the century.

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OMB 0518 - 0032 (01/2025)
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According to the Paperwork Reduction Act of 1995, an agency cannot conduct or sponsor, and a person is not required to respond to, a collection of information unless it displays a valid OMB control number. The valid OMB control number for this information collection is 0518-0032. The time required to complete this information is estimated to vary from one to five minutes with an average of three minutes per response, including time for reviewing instructions, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Agriculture, Clearance Officer, OIRM, Room 404-W, Washington, DC 20250, and to the Office of Information and Regulatory Affairs, Office of Management and Budget.