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11 datasets

Spatial CIMIS ETo maps — Daily Reference Evapotranspiration for California

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: ASCII, GEOTIFF

🔔 **Data now available in Cloud-Optimized GeoTIFF format for faster access!** ### Summary This dataset contains daily grass-reference evapotransp...

CIMIS Weather Station & Spatial CIMIS Data - Web API

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: JSON

CIMIS data is available to the public free of charge via a web Application Programming Interface (API). The CIMIS Web API delivers data over the REST...

i04 CIMIS Weather Stations

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The California Irrigation Management Information System (CIMIS) currently manages over 145 active weather stations throughout the state. Archived data...

CIMIS Weather Station Data

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: CSV

Weather Data collected by CIMIS automatic weather stations. The data is available in CSV format. Station data include measured parameters such as sola...

i04 CIMIS Reference Evapotranspiration Zones v1999

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The ETo Zones Map allows users to view the grass-reference evapotranspiration (ETo) Zones for the State of California. The map was developed by DWR an...

Data for Calculating Efficient Outdoor Water Uses

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: CSV, XLS, XLSX

October 31, 2025 (Final DWR Data) The 2018 Legislation required DWR to provide or otherwise identify data regarding the unique local conditions to ...

Statewide Agricultural Water Use Data 2016-2020

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: .ZIP

Descriptions Excel Application Tool for Statewide Agricultural Water Use Data 2016 - 2020 Department of water resources, Water Use Efficiency Branch...

California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG)

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: ZIP, PDF

(Released on June 6, 2025) Version 1.5 of the California Central Valley Groundwater-Surface Water Simulation Model – Fine Grid (C2VSimFG) is a major u...

Agricultural Water Use Data 2006-2010

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: ZIP

Excel Application Tool for Agricultural Water Use Data 2006 - 2010 Department of water resources, Water Use Efficiency Branch, Water Use Unit progr...

Agricultural Water Use Data 1998-2005

Published by: California Department of Water Resources
Last updated: Sunday, April 5, 2026
File types: .ZIP

Excel Application Tool for Agricultural Water Use Data 1998 - 2005 Department of water resources, Water Use Efficiency Branch, Water Use Unit program...