Current Northern Sacramento Valley ET Report – October 18, 2019

Estimated Crop Evapotranspiration (ETc) for October 11 – October 17, 2019

Your Help Needed!  University of California Agriculture and Natural Resources (UC ANR) and the Department of Water Resources (DWR) need your help to understand how our Weekly Crop ET Reports (a.k.a. “Soil Moisture Loss Reports” or “Crop Water Use Reports”) are helping California’s irrigators, and how we can improve these reports and other irrigation-related extension efforts to better serve you.

Please give us your feedback by completing the following survey:

Your responses are anonymous and will not be tied to your name. This survey should take about 8-10 minutes. Participants will be eligible to win a $20 Home Depot gift card – after you submit the survey, click on the link to provide your information for the gift card drawing. For questions on the survey, contact kjarvisshean AT


This report covers the CIMIS stations in Tehama County (Gerber South), Butte County (Biggs and Durham) and Colusa County (Williams). More information on using ET Reports is available here.

  • Accumulations began on March 10, 2019, or on the approximate leafout date for a specific orchard crop.
  • *Next week’s predicted ET is based on historical averages for the CIMIS station location.
  • Estimates are for orchard floor conditions where vegetation is managed by some combination of strip applications of herbicides, frequent mowing or tillage, and by mid and late season shading and water stress. Weekly estimates of soil moisture loss can be as much as 25% higher in orchards where cover crops are planted and managed more intensively for maximum growth.

Bookmark this page and visit weekly for the most current report.


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