The Casitas Municipal Water District provides up to date information on Evapotranspiration (ET) to our customers from two stations that we operate. ET is defined as the water lost from an area through the combined effects of evaporation from the ground surface and transpiration from the vegetation. Sun, wind, temperature, and humidity are some of the factors that influence how much water various plants need for any given day. This information is helpful to our customers that have agriculture or large landscapes. It allows them to adjust their watering practices so they are the more efficient in the application of water.

The District operates two ET stations. One station is in the Rincon area and the other station is in the Ojai valley area. The weather conditions can vary significantly further inland, which creates different water needs for those customers. The data collected from these stations is updated to our website on a weekly basis.