Historic ET by Zip Code

The Toro Weather Service has compiled historical Evapotranspiration data for every zip code in the United States. The weather information used to derive this historic information has been obtained from nationally recognized weather stations and observation Systems. The weather information was averaged over the last several years and ET values were then generated for each month of the year. This information is used with any Rain Master branded controller that supports ET adjustments including Toro® DXi™.