Columbia-Pacific Northwest Region

Crop Water Use Information

AgriMet is excited to announce a partnership with Washington State University to incorporate AgriMet data into WSU's Irrigation Scheduler. To customize crop consumptive water use specific to your field or fields, click here.

• Crop Water Use Charts (available April through October, updated daily by 6:30 am MDT)

• Information about AgriMet Crop Water Use Charts
• The 1982 Kimberly-Penman Reference Evapotranspiration Model
• The ASCE-EWRI Standardized ET Equation
• Key to Crop Codes in Water Use Charts
• Historical ET (evapotranspiration) Summary Data (Current and previous years)
• Annual Evapotranspiration Totals and Averages (All crops, all stations, period of record)
• Monthly Average Reference Evapotranspiration
• Graphs of daily evapotranspiration for each AgriMet station. (Updated each morning at 6:00 am)
• AgriMet Crop Coefficients (Graphical and Tabular Format)
• AgriMet Crop Coefficients (Text File)
• Information about AgriMet Crop Coefficients
• Definitions of Crop Start, Cover, and Terminate Dates
• Irrigation Guide